@article {CHEM:CHEM201504959,
	title = {Exploring Regioselective Bond Cleavage and Cross-Coupling Reactions using a Low-Valent Nickel Complex},
	journal = {Chemistry {\textendash} A European Journal},
	volume = {22},
	number = {12},
	year = {2016},
	pages = {4070{\textendash}4077},
	abstract = {Recently, esters have received much attention as transmetalation partners for cross-coupling reactions. Herein, we report a systematic study of the reactivity of a series of esters and thioesters with [{(dtbpe)Ni}2(μ-η2:η2-C6H6)] (dtbpe=1,2-bis(di-tert-butyl)phosphinoethane), which is a source of (dtbpe)nickel(0). Trifluoromethylthioesters were found to form η2-carbonyl complexes. In contrast, acetylthioesters underwent rapid Cacyl-S bond cleavage followed by decarbonylation to generate methylnickel complexes. This decarbonylation could be pushed backwards by the addition of CO, allowing for regeneration of the thioester. Most of the thioester complexes were found to undergo stoichiometric cross-coupling with phenylboronic acid to yield sulfides. While ethyl trifluoroacetate was also found to form an η2-carbonyl complex, phenyl esters were found to predominantly undergo Caryl-O bond cleavage to yield arylnickel complexes. These could also undergo transmetalation to yield biaryls. Attempts to render the reactions catalytic were hindered by ligand scrambling to yield nickel bis(acetate) complexes, the formation of which was supported by independent syntheses. Finally, 2-naphthyl acetate was also found to undergo clean Caryl-O bond cleavage, and although stoichiometric cross-coupling with phenylboronic acid proceeded with good yield, catalytic turnover has so far proven elusive.},
	keywords = {CROSS-COUPLING, ELIMINATION, NICKEL, P ligands, SULFUR},
	issn = {1521-3765},
	doi = {10.1002/chem.201504959},
	url = {http://dx.doi.org/10.1002/chem.201504959},
	author = {Desnoyer, Addison N. and Friese, Florian W. and Chiu, Weiling and Drover, Marcus W. and Patrick, Brian O. and Love, Jennifer A.}
}
@article {ANIE:ANIE201607243,
	title = {Oxidation State Dependent Coordination Modes: Accessing an Amidate-Supported Nickel(I) δ-bis(C-H) Agostic Complex},
	journal = {Angewandte Chemie International Edition},
	year = {2016},
	pages = {n/a{\textendash}n/a},
	abstract = {Amidate-supported two- and three-coordinate NiI complexes were synthesized by reduction of the corresponding NiII precursors. A dramatic change in binding mode is observed upon reduction from NiII to NiI. The NiI derivatives include an unprecedented NiI bis(C-H) agostic complex and a two-coordinate NiI complex.},
	keywords = {agostic complexes, AIM calculations, amidate, NICKEL, redox states},
	issn = {1521-3773},
	doi = {10.1002/anie.201607243},
	url = {http://dx.doi.org/10.1002/anie.201607243},
	author = {Beattie, D. Dawson and Bowes, Eric G. and Drover, Marcus W. and Love, Jennifer A. and Schafer, Laurel L.}
}
@article {2366,
	title = {Calorimetric studies of the interaction between the insulin-enhancing drug candidate bis(maltolato)oxovanadium(IV) (BMOV) and human serum apo-transferrin},
	journal = {Journal of Inorganic Biochemistry},
	volume = {103},
	number = {4},
	year = {2009},
	note = {ISI Document Delivery No.: 429EUTimes Cited: 8Cited Reference Count: 31Bordbar, Abdol-Khalegh Creagh, A. Louise Mohammadi, Fakhrossadat Haynes, Charles A. Orvig, Chris6th International Vanadium SymposiumJUL 17-19, 2008Lisbon, PORTUGALSp. Iss. SI},
	month = {Apr},
	pages = {643-647},
	type = {Proceedings Paper},
	abstract = {Bis(maltolato)oxovanadium(IV) (BMOV), and its ethylmaltol analog, bis(ethymaltolato)oxovanadium(IV) (BEOV), are candidate insulin-enhancing agents for the treatment of type 2 diabetes mellitus; in mid-2008, BEOV advanced to phase 11 clinical testing. The interactions of BMOV and its inorganic congener, vanadyl Sulfate (VOSO4), with human serum apo-transferrin (hTf) were investigated using differential scanning calorimetry (DSC). Addition of BMOV or VOSO4 to apo-hTf resulted in an increase in thermal stability of both the C- and N-lobes of transferrin as a result of binding to either vanadyl compound. A series of DSC thermograms of hTf Solutions containing different molar ratios of BMOV and VOSO4 were used to determine binding constants: at 25 degrees C the binding constants of BMOV to the C- and N-lobes of apo-hTf were found to be 3 (+/- 1) x 10(5) and 1.8 (+/- 0.7) x 10(5) M-1, respectively. The cot-responding values for VOSO4 were 1.7 (+/- 0.3) x 10(5) and 7 (+/- 2) x 10(4) M-1. The results show that the vanadium species initially presented as either BMOV or VOSO4 had similar affinities for human serum transferrin due to oxidation of solvated vanadyl(IV) prior to complexation to transferrin. Binding of metavanadate (VO3-) was confirmed by DSC and isothermal titration calorimetry (ITC) experiments of the interaction between sodium metavanadate (NaVO3) and hTf. (C) 2008 Elsevier Inc. All rights reserved.},
	keywords = {Apo-transferrin, BINDING, BIS(MALTOLATO)OXOVANADIUM(IV), CHEMISTRY, COMPLEXES, Insulin-enhancing, iron, MALTOL, MOLYBDENUM, NICKEL, RATS, STABILITY, VANADIUM},
	isbn = {0162-0134},
	url = {<Go to ISI>://000264904400022},
	author = {Bordbar, A. K. and Creagh, A. L. and Mohammadi, F. and Haynes, C. A. and Orvig, Chris}
}
@article {1326,
	title = {The effect of pH and role of Ni2+ in zinc phosphating of 2024-Al alloy. Part I: Macroscopic studies with XPS and SEM},
	journal = {Applied Surface Science},
	volume = {253},
	number = {2},
	year = {2006},
	note = {ISI Document Delivery No.: 114DVTimes Cited: 10Cited Reference Count: 30Akhtar, A. S. Wong, K. C. Mitchell, K. A. R.},
	month = {Nov},
	pages = {493-501},
	type = {Article},
	abstract = {Coatings formed on 2024-T3 aluminum alloy were studied by X-ray photoelectron spectroscopy (XPS) and scanning electron microscopy (SEM) after dipping in zinc phosphating (ZPO) baths at different acidities, for different lengths of time, and with or without Ni2+ additive. The overall objective was to learn more about the role of Ni2+ on the ZPO coating mechanism, particularly since this additive is believed to improve corrosion protection for the Al alloy. Secondary phosphates dominate the coatings when the Ni-containing solution is adjusted to starting pH values of either 3 or 5, while tertiary phosphate is predominant at pH 4. AlF3 precipitates during the early stages of the coating process. Ni2+ has two main roles in the mechanism. First, the rate of increase in local solution pH is retarded by the slower kinetics of reactions involving Ni2+ compared to Zn2+,leading to thinner ZPO coatings when Ni2+ is present in the coating solution. Second, most Ni2+ deposition occurs during the later stages of the coating process, by nickel phosphate deposition and/or by formation of a Ni-rich oxide. (c) 2006 Elsevier B.V. All rights reserved.},
	keywords = {ALKALINE STABILITY, aluminum alloy, ALUMINUM-ALLOY, CATALYSTS, COATINGS, CONVERSION COATINGS, FILMS, Ni2+ additive, NICKEL, OXIDATION, photoelectron spectroscopy, scanning electron microscopy, SPECTROSCOPY, STEEL, zinc phosphate},
	isbn = {0169-4332},
	url = {<Go to ISI>://000242647800017},
	author = {Akhtar, A. S. and Wong, K. C. and Mitchell, K. A. R.}
}
@article {793,
	title = {The effect of Ni2+ on zinc phosphating of 2024-T3 Al alloy},
	journal = {Surface \& Coatings Technology},
	volume = {187},
	number = {2-3},
	year = {2004},
	note = {ISI Document Delivery No.: 860VHTimes Cited: 27Cited Reference Count: 32},
	month = {Oct},
	pages = {208-215},
	type = {Article},
	abstract = {Zinc phosphate (ZPO) conversion coatings formed on 2024-T3 aluminum alloy, and on high-purity aluminum, after dipping in coating baths containing different amounts of Ni2+, have been studied by X-ray photoelectron spectroscopy (XPS), scanning electron microscopy (SEM), energy-dispersive X-ray (EDX) spectroscopy, scanning Auger microscopy (SAM) and electrochemical measurements. Significant variations are observed in coating morphology and in stability against corrosion for the 2024-Al alloy as the amount of Ni2+ in the coating solution increases through the 0-2000 ppm range. By contrast, for high-purity Al, the most marked changes in coating morphology occur only as the Ni2+ concentration reaches 2000 ppm. The presence of additional elements, and especially Cu, in the 2024-Al samples results in an increase in the number of cathodic sites and hence more coating is formed for corresponding conditions. Additionally, the existence of second-phase particles in the 2024-Al sample leads to variations in the coatings at the microstructural level across the surface. These differences include local variations in the amount of Ni2+ in the coatings, as well as the local coverage. (C) 2004 Elsevier B.V. All rights reserved.},
	keywords = {aluminum alloy, ALUMINUM-ALLOY, Auger electron spectroscopy, chemical conversion, CHROMATE CONVERSION COATINGS, CORROSION PROTECTION, FILMS, Ni2+ additive, NICKEL, phosphating, photoelectron spectroscopy, STEEL, SURFACE, XPS},
	isbn = {0257-8972},
	url = {<Go to ISI>://000224371300011},
	author = {Akhtar, A. S. and Susac, D. and Glaze, P. and Wong, K. C. and Wong, P. C. and Mitchell, K. A. R.}
}
@article {Funk2004,
	title = {X-ray magnetic circular dichroism of Pseudomonas aeruginosa nickel(II) azurin.},
	journal = {J. Am. Chem. Soc.},
	volume = {126},
	number = {18},
	year = {2004},
	pages = {5859{\textendash}66},
	abstract = {We show that X-ray magnetic circular dichroism (XMCD) can be employed to probe the oxidation states and other electronic structural features of nickel active sites in proteins. As a calibration standard, we have measured XMCD and X-ray absorption (XAS) spectra for the nickel(II) derivative of Pseudomonas aeruginosa azurin (NiAz). Our analysis of these spectra confirms that the electronic ground state of NiAz is high-spin (S = 1); we also find that the L(3)-centroid energy is 853.1(1) eV, the branching ratio is 0.722(4), and the magnetic moment is 1.9(4) mu(B). Density functional theory (DFT) calculations on model NiAz structures establish that orbitals 3d(x2-y2) and 3d(z2) are the two valence holes in the high-spin Ni(II) ground state, and in accord with the experimentally determined orbital magnetic moment, the DFT results also demonstrate that both holes are highly delocalized, with 3d(x2-y2) having much greater ligand character.},
	keywords = {Azurin, Azurin: chemistry, circular dichroism, Circular Dichroism: methods, copper, Copper: chemistry, CRYSTALLOGRAPHY, LIGANDS, Magnetics, models, MOLECULAR, Molecular Conformation, NICKEL, Nickel: chemistry, PDF, Pseudomonas aeruginosa, Pseudomonas aeruginosa: chemistry, X-RAY, X-Rays},
	issn = {0002-7863},
	doi = {10.1021/ja036218d},
	url = {http://www.ncbi.nlm.nih.gov/pubmed/15125678},
	author = {Funk, Tobias and Kennepohl, Pierre and Di Bilio, Angel J and Wehbi, William a and Young, Anthony T and Friedrich, Stephan and Arenholz, Elke and Gray, Harry B and Cramer, Stephen P}
}
@article {4412,
	title = {Transition metal azolates from metallocenes. Part 3: Polymeric manganese(II) and nickel(II) pyrazolates; synthesis, characterization, and magnetochemistry},
	journal = {Canadian Journal of Chemistry-Revue Canadienne De Chimie},
	volume = {76},
	number = {8},
	year = {1998},
	note = {ISI Document Delivery No.: 143VNTimes Cited: 13Cited Reference Count: 37},
	month = {Aug},
	pages = {1130-1137},
	type = {Article},
	abstract = {Direct reactions of nickelocene and manganocene with molten pyrazoles in an inert atmosphere or under vacuum have led to the isolation of the following metal pyrazolate compounds: [Ni(4-Xpz)(2)](x) (where X = EI, CI and pz = pyrazolate); [M(4-Xdmpz)(2)](x) (where X = H, CH3, Cl, Br and M = Ni, Mn and dmpz = 3,5-dimethylpyazolate); and [Mn(4-Xpz)(2)(4-XpzH)](x) (where X = Cl, Br and pzH = pyrazole). On the basis of indirect evidence all compounds are considered to have extended chain structures with metal ions linked in chains by double bridging pyrazolates. The two [Ni(4-Xpz)2], compounds are diamagnetic while all others are paramagnetic. Variable temperature magnetic susceptibility studies on the paramagnetic compounds reveal antiferromagnetic coupling between neighbouring metal ions. Analysis of the magnetic data (Hamiltonian of the form II = -2J Sigma S-i S-j) yields values of the exchange coupling constant J of -14 to -17 cm(-1) for the [Ni(4-Xdmpz)(2)](x) compounds, -1.2 to -2.1 cm(-1) for the [Mn(4-Xdmpz)(2)](x) compounds, and -0.41 cm(-1) for the [Mn(4-Xpz)(2)(4-XpzH)](x) compounds.},
	keywords = {3, 5-DIMETHYLPYRAZOLATE, ANTIFERROMAGNETIC EXCHANGE, BR, CH3, COMPLEXES, CRYSTAL-STRUCTURE, LIGANDS, MAGNETIC-PROPERTIES, manganese, manganocene, NICKEL, nickelocene, pyrazolates, REACTIVITY},
	isbn = {0008-4042},
	url = {<Go to ISI>://000077277900003},
	author = {Storr, A. and Summers, D. A. and Thompson, R. C.}
}
@article {4412,
	title = {Transition metal azolates from metallocenes. Part 3: Polymeric manganese(II) and nickel(II) pyrazolates; synthesis, characterization, and magnetochemistry},
	journal = {Canadian Journal of Chemistry-Revue Canadienne De Chimie},
	volume = {76},
	number = {8},
	year = {1998},
	note = {ISI Document Delivery No.: 143VNTimes Cited: 13Cited Reference Count: 37},
	month = {Aug},
	pages = {1130-1137},
	type = {Article},
	abstract = {Direct reactions of nickelocene and manganocene with molten pyrazoles in an inert atmosphere or under vacuum have led to the isolation of the following metal pyrazolate compounds: [Ni(4-Xpz)(2)](x) (where X = EI, CI and pz = pyrazolate); [M(4-Xdmpz)(2)](x) (where X = H, CH3, Cl, Br and M = Ni, Mn and dmpz = 3,5-dimethylpyazolate); and [Mn(4-Xpz)(2)(4-XpzH)](x) (where X = Cl, Br and pzH = pyrazole). On the basis of indirect evidence all compounds are considered to have extended chain structures with metal ions linked in chains by double bridging pyrazolates. The two [Ni(4-Xpz)2], compounds are diamagnetic while all others are paramagnetic. Variable temperature magnetic susceptibility studies on the paramagnetic compounds reveal antiferromagnetic coupling between neighbouring metal ions. Analysis of the magnetic data (Hamiltonian of the form II = -2J Sigma S-i S-j) yields values of the exchange coupling constant J of -14 to -17 cm(-1) for the [Ni(4-Xdmpz)(2)](x) compounds, -1.2 to -2.1 cm(-1) for the [Mn(4-Xdmpz)(2)](x) compounds, and -0.41 cm(-1) for the [Mn(4-Xpz)(2)(4-XpzH)](x) compounds.},
	keywords = {3, 5-DIMETHYLPYRAZOLATE, ANTIFERROMAGNETIC EXCHANGE, BR, CH3, COMPLEXES, CRYSTAL-STRUCTURE, LIGANDS, MAGNETIC-PROPERTIES, manganese, manganocene, NICKEL, nickelocene, pyrazolates, REACTIVITY},
	isbn = {0008-4042},
	url = {<Go to ISI>://000077277900003},
	author = {Storr, A. and Summers, D. A. and Thompson, R. C.}
}
@article {3915,
	title = {Density functional calculations of core-electron binding energies of amines. Application to (CH3)(3)N-Ni and (CH3)(4)N+-Ni},
	journal = {Chemical Physics Letters},
	volume = {264},
	number = {1-2},
	year = {1997},
	note = {ISI Document Delivery No.: WC716Times Cited: 29Cited Reference Count: 20},
	month = {Jan},
	pages = {186-192},
	type = {Article},
	abstract = {A procedure for computing accurate core-electron binding energies via density functional theory is applied to ten molecular systems containing amine and ammonium groups. The procedure uses the unrestricted generalized transition-state model. The method is used on model systems in which amine and ammonium groups interact with a hydroxide or chloride ion, as well as with a nickel atom. The results are used to shed some light on the interpretation of some characteristics of the XPS spectra of pre-electrolysed nickel surfaces used in electropolymerization reactions.},
	keywords = {ACRYLONITRILE, APPROXIMATION, BASIS-SETS, FILMS, MOLECULES, NICKEL, POTENTIALS, SURFACES},
	isbn = {0009-2614},
	url = {<Go to ISI>://A1997WC71600029},
	author = {Bureau, C. and Chong, D. P.}
}
@article {4117,
	title = {Transition metal azolates from metallocenes .1. Dimetallic and trimetallic cyclopentadienyl nickel pyrazolates, synthesis and structural studies},
	journal = {Canadian Journal of Chemistry-Revue Canadienne De Chimie},
	volume = {75},
	number = {7},
	year = {1997},
	note = {ISI Document Delivery No.: XR886Times Cited: 10Cited Reference Count: 23},
	month = {Jul},
	pages = {949-958},
	type = {Article},
	abstract = {{The reactions of nickelocene with pyrazoles in benzene solution have resulted in the isolation of either dimeric compounds, [CpNi(mu-pz{\textquoteright})](2), (room temperature conditions) or trimetallic complexes, [CpNi(mu-pz {\textquoteright}{\textquoteright})(2)](2)Ni, (elevated temperature conditions). Both dimeric and trimetallic species were obtained as red crystalline materials and X-ray structural investigations are reported for representative samples of each type. Structural features are interpreted and compared with similar, previously reported, nickel pyrazolate structures. Crystals of [CpNi(3,5-diMepz)](2) (C20H24N4Ni2), 1, are orthorhombic},
	keywords = {3, 5-DIMETHYLPYRAZOLATE COMPLEXES, BR, CH3, CRYSTAL, crystal structures, CYCLOPENTADIENYL, MAGNETIC-PROPERTIES, MOLECULAR-STRUCTURES, NICKEL, nickelocene, POLYMERS, pyrazolates},
	isbn = {0008-4042},
	url = {<Go to ISI>://A1997XR88600004},
	author = {Rettig, S. J. and Storr, A. and Summers, D. A. and Thompson, R. C. and Trotter, J.}
}
@article {4117,
	title = {Transition metal azolates from metallocenes .1. Dimetallic and trimetallic cyclopentadienyl nickel pyrazolates, synthesis and structural studies},
	journal = {Canadian Journal of Chemistry-Revue Canadienne De Chimie},
	volume = {75},
	number = {7},
	year = {1997},
	note = {ISI Document Delivery No.: XR886Times Cited: 10Cited Reference Count: 23},
	month = {Jul},
	pages = {949-958},
	type = {Article},
	abstract = {{The reactions of nickelocene with pyrazoles in benzene solution have resulted in the isolation of either dimeric compounds, [CpNi(mu-pz{\textquoteright})](2), (room temperature conditions) or trimetallic complexes, [CpNi(mu-pz {\textquoteright}{\textquoteright})(2)](2)Ni, (elevated temperature conditions). Both dimeric and trimetallic species were obtained as red crystalline materials and X-ray structural investigations are reported for representative samples of each type. Structural features are interpreted and compared with similar, previously reported, nickel pyrazolate structures. Crystals of [CpNi(3,5-diMepz)](2) (C20H24N4Ni2), 1, are orthorhombic},
	keywords = {3, 5-DIMETHYLPYRAZOLATE COMPLEXES, BR, CH3, CRYSTAL, crystal structures, CYCLOPENTADIENYL, MAGNETIC-PROPERTIES, MOLECULAR-STRUCTURES, NICKEL, nickelocene, POLYMERS, pyrazolates},
	isbn = {0008-4042},
	url = {<Go to ISI>://A1997XR88600004},
	author = {Rettig, S. J. and Storr, A. and Summers, D. A. and Thompson, R. C. and Trotter, J.}
}
@article {4117,
	title = {Transition metal azolates from metallocenes .1. Dimetallic and trimetallic cyclopentadienyl nickel pyrazolates, synthesis and structural studies},
	journal = {Canadian Journal of Chemistry-Revue Canadienne De Chimie},
	volume = {75},
	number = {7},
	year = {1997},
	note = {ISI Document Delivery No.: XR886Times Cited: 10Cited Reference Count: 23},
	month = {Jul},
	pages = {949-958},
	type = {Article},
	abstract = {{The reactions of nickelocene with pyrazoles in benzene solution have resulted in the isolation of either dimeric compounds, [CpNi(mu-pz{\textquoteright})](2), (room temperature conditions) or trimetallic complexes, [CpNi(mu-pz {\textquoteright}{\textquoteright})(2)](2)Ni, (elevated temperature conditions). Both dimeric and trimetallic species were obtained as red crystalline materials and X-ray structural investigations are reported for representative samples of each type. Structural features are interpreted and compared with similar, previously reported, nickel pyrazolate structures. Crystals of [CpNi(3,5-diMepz)](2) (C20H24N4Ni2), 1, are orthorhombic},
	keywords = {3, 5-DIMETHYLPYRAZOLATE COMPLEXES, BR, CH3, CRYSTAL, crystal structures, CYCLOPENTADIENYL, MAGNETIC-PROPERTIES, MOLECULAR-STRUCTURES, NICKEL, nickelocene, POLYMERS, pyrazolates},
	isbn = {0008-4042},
	url = {<Go to ISI>://A1997XR88600004},
	author = {Rettig, S. J. and Storr, A. and Summers, D. A. and Thompson, R. C. and Trotter, J.}
}
@article {7017,
	title = {BINUCLEAR PALLADIUM COMPLEXES WITH BRIDGING HYDRIDES - UNUSUAL COORDINATION BEHAVIOR OF LIBET4},
	journal = {Journal of the American Chemical Society},
	volume = {113},
	number = {11},
	year = {1991},
	note = {ISI Document Delivery No.: FN005Times Cited: 29Cited Reference Count: 22},
	month = {May},
	pages = {4332-4334},
	type = {Note},
	keywords = {BONDS, CENTERS, NICKEL, platinum, RHODIUM HYDRIDES},
	isbn = {0002-7863},
	url = {<Go to ISI>://A1991FN00500047},
	author = {Fryzuk,Michael D. and Lloyd, B. R. and Clentsmith, G. K. B. and Rettig, S. J.}
}
@article {7068,
	title = {ORGANOMETALLIC NITROSYL CHEMISTRY .43. SYNTHESIS, CHARACTERIZATION, AND PHYSICAL-PROPERTIES OF UNUSUAL CYCLOPENTADIENYL BIS(BENZYL) NITROSYL COMPLEXES OF MOLYBDENUM AND TUNGSTEN},
	journal = {Organometallics},
	volume = {10},
	number = {4},
	year = {1991},
	note = {ISI Document Delivery No.: FG976Times Cited: 44Cited Reference Count: 52},
	month = {Apr},
	pages = {986-1002},
	type = {Article},
	abstract = {{Treatment of either the dichloro or diiodo nitrosyl precursors Cp{\textquoteright}M(NO)X2 (Cp{\textquoteright} = Cp (eta-5-C5H5) or Cp* (eta-5-C5Me5); M = Mo or W; X = Cl or I) in THF/Et2O with 2 equiv of a benzyl Grignard reagent, Ph{\textquoteright}CH2MgCl (Ph{\textquoteright} = C6H5 or 2,4,6-Me3C6H2), at 0-degrees-C affords the corresponding bis(benzyl) nitrosyl complexes, Cp{\textquoteright}M(NO)(CH2Ph{\textquoteright})2, isolated yields typically being 50-65\%. All the bis(benzyl) nitrosyl complexes are relatively high melting (143-163-degrees-C), orange-red, diamagnetic solids that are soluble in most common organic solvents. They are all stable to air in the solid state for at least 2 months, and only solutions of the tungsten species react with O2 to produce moderate yields of the corresponding dioxo benzyl complexes, Cp{\textquoteright}W(O)2(CH2Ph{\textquoteright}). The spectroscopic properties of the bis(benzyl) complexes are consistent with their possessing 18-electron, monomeric Cp{\textquoteright}M(NO)(eta-1-CH2Ph{\textquoteright})(eta-2-CH2Ph{\textquoteright}) molecular structures. Variable-temperature H-1 and C-13{H-1} NMR spectra of all the compounds in CD2Cl2 establish that they are stereochemically nonrigid in solutions at ambient temperatures, the principal fluxionality involving the two benzyl ligands exchanging their modes of attachment to the metal centers. C-13 NMR spectroscopy also establishes that the low-temperature limiting structures of the complexes in solution are identical with their solid-state molecular structures. Interestingly, the tungsten bis(benzyl) complexes exhibit the more facile fluxional processes in solution, this increased nonrigidity apparently rendering the tungsten complexes more reactive to Lewis bases. Crystal structure analyses of the five bis(benzyl) nitrosyl complexes have been performed in order to establish their solid-state molecular structures. Crystals of CpMo(NO)(CH2Ph)2 (1a) are orthorhombic, Pbca, with a = 10.122 (1) angstrom},
	keywords = {CARBONYL-COMPLEXES, CHEMICAL-PROPERTIES, COMPLEXES, LIGAND, NICKEL, OXO, PENTAFULVENES, RAY CRYSTAL-STRUCTURE},
	isbn = {0276-7333},
	url = {<Go to ISI>://A1991FG97600034},
	author = {Legzdins,Peter and Jones, R. H. and Phillips, E. C. and Yee, V. C. and Trotter, J. and Einstein, F. W. B.}
}
@article {7068,
	title = {ORGANOMETALLIC NITROSYL CHEMISTRY .43. SYNTHESIS, CHARACTERIZATION, AND PHYSICAL-PROPERTIES OF UNUSUAL CYCLOPENTADIENYL BIS(BENZYL) NITROSYL COMPLEXES OF MOLYBDENUM AND TUNGSTEN},
	journal = {Organometallics},
	volume = {10},
	number = {4},
	year = {1991},
	note = {ISI Document Delivery No.: FG976Times Cited: 44Cited Reference Count: 52},
	month = {Apr},
	pages = {986-1002},
	type = {Article},
	abstract = {{Treatment of either the dichloro or diiodo nitrosyl precursors Cp{\textquoteright}M(NO)X2 (Cp{\textquoteright} = Cp (eta-5-C5H5) or Cp* (eta-5-C5Me5); M = Mo or W; X = Cl or I) in THF/Et2O with 2 equiv of a benzyl Grignard reagent, Ph{\textquoteright}CH2MgCl (Ph{\textquoteright} = C6H5 or 2,4,6-Me3C6H2), at 0-degrees-C affords the corresponding bis(benzyl) nitrosyl complexes, Cp{\textquoteright}M(NO)(CH2Ph{\textquoteright})2, isolated yields typically being 50-65\%. All the bis(benzyl) nitrosyl complexes are relatively high melting (143-163-degrees-C), orange-red, diamagnetic solids that are soluble in most common organic solvents. They are all stable to air in the solid state for at least 2 months, and only solutions of the tungsten species react with O2 to produce moderate yields of the corresponding dioxo benzyl complexes, Cp{\textquoteright}W(O)2(CH2Ph{\textquoteright}). The spectroscopic properties of the bis(benzyl) complexes are consistent with their possessing 18-electron, monomeric Cp{\textquoteright}M(NO)(eta-1-CH2Ph{\textquoteright})(eta-2-CH2Ph{\textquoteright}) molecular structures. Variable-temperature H-1 and C-13{H-1} NMR spectra of all the compounds in CD2Cl2 establish that they are stereochemically nonrigid in solutions at ambient temperatures, the principal fluxionality involving the two benzyl ligands exchanging their modes of attachment to the metal centers. C-13 NMR spectroscopy also establishes that the low-temperature limiting structures of the complexes in solution are identical with their solid-state molecular structures. Interestingly, the tungsten bis(benzyl) complexes exhibit the more facile fluxional processes in solution, this increased nonrigidity apparently rendering the tungsten complexes more reactive to Lewis bases. Crystal structure analyses of the five bis(benzyl) nitrosyl complexes have been performed in order to establish their solid-state molecular structures. Crystals of CpMo(NO)(CH2Ph)2 (1a) are orthorhombic, Pbca, with a = 10.122 (1) angstrom},
	keywords = {CARBONYL-COMPLEXES, CHEMICAL-PROPERTIES, COMPLEXES, LIGAND, NICKEL, OXO, PENTAFULVENES, RAY CRYSTAL-STRUCTURE},
	isbn = {0276-7333},
	url = {<Go to ISI>://A1991FG97600034},
	author = {Legzdins,Peter and Jones, R. H. and Phillips, E. C. and Yee, V. C. and Trotter, J. and Einstein, F. W. B.}
}
