@article {5196,
	title = {The elusive 16-electron Cp*M(NO)Me-2 (M = Mo, W) complexes and their spontaneous conversions to Cp*M(NMe)(O)Me isomers},
	journal = {Journal of the American Chemical Society},
	volume = {123},
	number = {26},
	year = {2001},
	note = {ISI Document Delivery No.: 447QPTimes Cited: 17Cited Reference Count: 115},
	month = {Jul},
	pages = {6272-6282},
	type = {Review},
	abstract = {Treatment of [Cp*Mo(NO)Cl mu(-Cl)](2) with magnesium (Me2Mg.dioxane, MeMgCl) or aluminum (Me3Al) methylating reagents affords the known compound [Cp*Mo(NO)Me(mu 0Cl)](2) (1). Similar treatment of the dicbloro precursor with MeLi in ethereal solvents generates an equimolar mixture of 1 and the trimethyl "ate" complex, Cp*MoMe3(NO-Li(OEt2)(n)). (2-Et2O). Reaction of 2-Et2O with a source of [Me](+) forms Cp*MoMe3(dropN-OMe) (3), a rare terminal alkoxylimido complex. Metathesis of the chloro ligands of [Cp*Mo-(NO)Cl(mu -Cl)](2) by MeLi in toluene at low temperatures produces the target dimethyl complex. Cp*Mo(NO)-Me-2 (4). in 75\% isolated yield. In solution, 4 is predominantly a monomeric species, whereas in the solid state it adopts a dimeric or oligomeric structure containing isonitrosyl bridges as indicated by IR and N-15/C-13 NMR spectroscopies. Hydrolysis of 4 affords meso- and rac-[Cp*Mo(NO)Me](2)(mu -O)(5), and the reactions of 4 with a range of Lewis bases. L, to form the 18e adducts Cp*Mo(NO)(L)Me-2 (e.g., Cp*Mo(NO)(PMe3)Me-2 (7)), have established it to be the most electrophilic complex of its family. Acidolysis of the methyl groups of 4 is also facile. Most notably, 4 is thermally unstable in solution and undergoes isomerization via nitrosyl N-O bond cleavage to its oxo(imido) form, Cp*Mo(NMe)(O)Me (11), which is isolable from the final reaction mixture as the mu -oxo-bridged adduct formed by 4 and 11, i.e., Cp*Mo(NO)Me2(mu -O)Cp*Mo(NMe)Me (4 <{\textendash} 11). The rate of this isomerization is significantly faster for the tungsten dimethyl complex; hence, Cp*W(NO)- (NO)Me-2 (12) is not isolable free of a supporting donor interaction and can only be isolated as Cp*W(NO)-Me-2(mu -O)Cp*W(NMe)Me (12 <{\textendash} 13) or Cp*W(NO)Me-2(PMe3) (14) adducts.},
	keywords = {ALPHA-OLEFINS, COORDINATED NITRIC-OXIDE, CRYSTAL-STRUCTURE, EFFECTIVE CORE POTENTIALS, INSERTION, LIGAND REDISTRIBUTION REACTIONS, MIGRATORY, MOLECULAR CALCULATIONS, OLEFIN POLYMERIZATION, ORGANOMETALLIC NITROSYL CHEMISTRY, POLYMERIZATION CATALYSTS},
	isbn = {0002-7863},
	url = {<Go to ISI>://000169584200009},
	author = {Sharp, W. B. and Daff, P. J. and McNeil, W. S. and Legzdins,Peter}
}
@article {4596,
	title = {1-metallacyclopropene complexes and eta(1)-vinyl complexes containing the Cp*W(NO) fragment},
	journal = {Organometallics},
	volume = {18},
	number = {16},
	year = {1999},
	note = {ISI Document Delivery No.: 226ADTimes Cited: 14Cited Reference Count: 40},
	month = {Aug},
	pages = {3128-3137},
	type = {Article},
	abstract = {The solid-state molecular structure of Cp*W(NO)(CH2SiMe3)(eta(2)-CPhCH2) reveals that the vinyl ligand in this complex exists in a distorted form in the solid state that cannot be readily described by either of the classic eta(1)-vinyl or 1-metallacyclopropene limiting structures, by comparison to other crystallographically characterized vinyl complexes reported in the literature. However, the NMR parameters for the CPhCH2 fragment in this complex are characteristic of those of a 1-metallacyclopropene unit. In addition to these studies, a series of vinyl-containing species of the general formulas Cp*W(NO)(eta(2)-CPhCH2)(X) and Cp*W(NO)(eta(1)-CPh=CH2)(LX) (X = Cl, OTf; LX = O2CPh, (NHBu)-Bu-t, (PPh3)(H)) has been prepared, and the solid-state metrical parameters and solution NMR spectroscopic properties of these complexes have been examined and compared to those of other vinyl-containing complexes reported in the literature. It has been found that the nature of the tungsten-vinyl interaction in these compounds is dependent upon the donor strength of the one-electron (1e) X or 3e LX donor ligands that are also present in the tungsten coordination sphere.},
	keywords = {COORDINATED LIGANDS, GROUP-6 METALS, INSERTION, {ALKYNE COMPLEXES},
	isbn = {0276-7333},
	url = {<Go to ISI>://000081997400029},
	author = {Legzdins,Peter and Lumb, S. A. and Rettig, S. J.}
}
@article {4273,
	title = {Covalent adduct formation with a mutated enzyme: Evidence for a thioester intermediate in the reaction catalyzed by UDP-glucose dehydrogenase},
	journal = {Journal of the American Chemical Society},
	volume = {120},
	number = {26},
	year = {1998},
	note = {ISI Document Delivery No.: ZZ420Times Cited: 15Cited Reference Count: 23},
	month = {Jul},
	pages = {6613-6614},
	type = {Article},
	keywords = {ALDEHYDE DEHYDROGENASE, biosynthesis, GENE, GROUP-A, HYALURONIC-ACID SYNTHESIS, INSERTION, MOLECULAR CHARACTERIZATION, MUTATIONS, PNEUMONIAE, STREPTOCOCCI, TYPE-3 CAPSULAR POLYSACCHARIDE},
	isbn = {0002-7863},
	url = {<Go to ISI>://000074727600028},
	author = {Ge, X. and Campbell, R. E. and van de Rijn, I. and Tanner, M. E.}
}
@article {4325,
	title = {Ligand elaboration mediated by a Cp*W(NO) template: Stepwise incorporation of small molecules into a tungsten vinyl fragment},
	journal = {Organometallics},
	volume = {17},
	number = {5},
	year = {1998},
	note = {ISI Document Delivery No.: ZC012Times Cited: 21Cited Reference Count: 81},
	month = {Mar},
	pages = {854-871},
	type = {Article},
	abstract = {{Thermolysis of the alkyl vinyl complex Cp*W(NO)(CH2SiMe3)(CPh=CH2) (1) in the presence of unsaturated, heteroatom-containing compounds such as esters and nitriles quantitatively affords metallacyclic products of reductive coupling. These are trapped as 18e complexes via either intramolecular rearrangement or intermolecular reaction with added trapping reagents. The nature of these metallacycles is consistent with the intermediacy of the acetylene complex Cp*W(NO)(eta(2)-CPh=CH) (A) derived in situ from the reductive elimination of SiMe4 from 1. With esters ROAc (R = Me, Et), reductive coupling and C-O bond cleavage yields the alkoxide-containing oxametallacyclopentadiene complexes Cp*W-(No)(eta(2)-O=C(Me)CH=CPh)(OR) (2},
	keywords = {ACTIVATION, ALKYNE COMPLEXES, BOND-CLEAVAGE, C-H, INSERTION, KETONE COMPLEXES, METAL-COMPLEXES, ORGANIC-SYNTHESIS, ORGANOMETALLIC NITROSYL CHEMISTRY, RAY CRYSTAL-STRUCTURE, SEQUENTIAL, ZIRCONOCENE COMPLEXES},
	isbn = {0276-7333},
	url = {<Go to ISI>://000072530700014},
	author = {Legzdins,Peter and Lumb, S. A. and Young, V. G.}
}
@article {3069,
	title = {GAS-PHASE ION CHEMISTRY OF (ETA(6)-C-C7H8)CR(CO)(3) BY FT-ICR SPECTROSCOPY - BETA-HYDRIDE TRANSFER IN ORGANOMETALLIC IONS},
	journal = {Journal of the American Chemical Society},
	volume = {116},
	number = {10},
	year = {1994},
	note = {ISI Document Delivery No.: NM988Times Cited: 4Cited Reference Count: 65},
	month = {May},
	pages = {4449-4454},
	type = {Article},
	abstract = {The gas-phase ion chemistry of eta(6)-cycloheptatriene chromium tricarbonyl was studied by Fourier transform ion cyclotron resonance spectroscopy. The well-known trend that fragment-ion reactivity toward the parent neutral increases with increasing electron deficiency on the metal atom was, in general, observed. However, the reactivity of the fragment ions from (eta(6)-c-C7H8)Cr(CO)(3) shows the order Cr+ > C5H6Cr+ > C7H8Cr+ approximate to C7H8Cr(CO)(+) > C7H8Cr(CO)(2)(+) > C7H8Cr(CO)(3)(+), in which C7H8Cr+ has an anomalously low reactivity. Similarly, the secondary ion-molecule product ion, (C7H8Cr)(2)(+), has an anomalously low reactivity when compared with that of (C7H8Cr)(2)(CO)(3)(+). A more quantitative analysis indicates that the ions C7H8Cr+, C7H8Cr2(CO)(+) and C7H8Cr2(CO)(2)(+) are less reactive than expected. All of these low reactivities can be explained by a beta-hydride shift from the cycloheptatriene ring to the chromium atom that converts the cycloheptatriene ligand into an aromatic tropylium ligand. The coordination hapticity to chromium changes from eta(6) to eta(7) + eta(1) and the electron deficiency of chromium drops by 2. Similarly, the reactivity of the fragment ion C5H6Cr+ implies it has a hydrido-pi-cyclopentadienyl structure. An additional driving force for these rearrangements appears to be the aromatization of the seven-membered cycloheptatriene ring to a tropylium ring and the aromatization of the five-membered cyclopentadiene ring to a cyclopentadienyl ring, as the fragment and secondary ion reactivity orders are normal in the otherwise analogous benzene chromium tricarbonyl and cyclopentadienyl vanadium tetracarbonyl systems. These latter systems have no possible corresponding aromatization reaction. Ions that have low reactivity and have metal-hydrogen bonds react with deuterium-labeled methanol to eliminate a molecule of molecular hydrogen in which one hydrogen atom comes from the hydroxyl group of methanol and the other hydrogen atom comes from the organometallic ion. In contrast, ions that have normal reactivity and do not have metal-hydrogen bonds give methanol adduct products when reacted with methanol.},
	keywords = {CARBONYL, CLUSTER FRAGMENTS, CYCLOTRON RESONANCE SPECTROSCOPY, FE+, INSERTION, MASS-SPECTROMETRY, MOLECULE REACTIONS, PRIMARY AMIDE COMPLEXES, REACTIVITY, SYSTEMS, TRANSITION-METAL IONS},
	isbn = {0002-7863},
	url = {<Go to ISI>://A1994NM98800037},
	author = {Kan, Z. Y. and Taylor, S. M. and Comisarow, M. B.}
}
@article {7251,
	title = {BIS(DIPHENYLPHOSPHINO)METHANE COMPLEXES OF PALLADIUM AS CATALYSTS FOR HYDROSILYLATION OF OLEFINS BY TRICHLOROSILANE},
	journal = {Journal of Molecular Catalysis},
	volume = {72},
	number = {2},
	year = {1992},
	note = {ISI Document Delivery No.: HT940Times Cited: 5Cited Reference Count: 22},
	month = {Mar},
	pages = {167-171},
	type = {Article},
	abstract = {Mononuclear Pd(II), and dinuclear Pd(O) and Pd(I) complexes containing bis(diphenylphosphino)methane catalyze the addition of trichlorosilane to the olefinic bond of hexene-1, styrene and vinyltrichlorosilane. Activity relationships for limited data at 80 and 120-degrees-C suggest that in each case mononuclear Pd(O) species might act as a catalyst precursor.},
	keywords = {BOND, CRYSTAL, HYDROGEN-SULFIDE, INSERTION, metal complexes, Pd(I), PHOSPHINE COMPLEXES},
	isbn = {0304-5102},
	url = {<Go to ISI>://A1992HT94000006},
	author = {Gulinski, J. and James, Brian R.}
}
@article {7235,
	title = {MONONUCLEAR AND DINUCLEAR RHODIUM CARBONYL SPECIES CONTAINING MONODENTATE OR BRIDGING 1,3-BIS(DIPHENYLPHOSPHINO)PROPANE},
	journal = {Gazzetta Chimica Italiana},
	volume = {122},
	number = {8},
	year = {1992},
	note = {ISI Document Delivery No.: JW695Times Cited: 2Cited Reference Count: 50},
	month = {Aug},
	pages = {329-334},
	type = {Article},
	abstract = {The interaction of [Rh(CO)(dpp)]2(mu-CO)2 with H-2 in CH2Cl2 in the presence of varying amounts of dpp leads mainly to catalytically important species which include Rh(H)(CO)(dpp)(dpp*) and [RhH(CO)(dpp)]2(mu-dpp), these being formed also by treating RhH(dpp)2 with about 2 equivalents of CO; dpp and dpp* = bidentate and monodentate 1,3-bis(diphenylphosphino)propane, respectively. Mechanistic pathways involving a detected RhH(CO)2(dpp) and non-detected <<RhH(CO)(dpp)>> species are suggested.},
	keywords = {ASYMMETRIC HYDROGENATION, CATALYSIS, CATALYTIC-HYDROGENATION, COMPLEXES, DIHYDROGEN, homogeneous, HYDROACYLATION, HYDROFORMYLATION, INSERTION, MONOXIDE, REACTIVITY},
	isbn = {0016-5603},
	url = {<Go to ISI>://A1992JW69500009},
	author = {Fung, D. C. M. and James, Brian R.}
}
@article {7231,
	title = {PHOSPHINE COMPLEXES OF ZIRCONIUM AND HAFNIUM - SYNTHESIS, STRUCTURE, AND FLUXIONAL BEHAVIOR OF THE TRIMETHYL DERIVATIVES MME3[N(SIME2CH2PR2)2] (R = ME, ISO-PR, TERT-BU) - EVIDENCE FOR A BICAPPED-TETRAHEDRAL GEOMETRY},
	journal = {Organometallics},
	volume = {11},
	number = {1},
	year = {1992},
	note = {ISI Document Delivery No.: GZ040Times Cited: 17Cited Reference Count: 31},
	month = {Jan},
	pages = {469-472},
	type = {Note},
	abstract = {The addition of 3 equiv of methyl Grignard (MeMgCl) to the amidodiphosphine derivatives MCl3[N-(SiMe2CH2PR2)2] (M = Zr, Hf; R = Me, Pr(i), Bu(t)) generates the corresponding trimethyl complexes MMe3[N-(SiMe2CH2PR2)2]. The solution structures and fluxional behavior of these molecules along with the X-ray structure of HfMe3[N(SiMe2CH2PMe2)2] are presented.},
	keywords = {ALKYL, CARBON BOND, DINITROGEN, ETHYLENE POLYMERIZATION, GROUP-4, HYDRIDE DERIVATIVES, INSERTION, RAY CRYSTAL-STRUCTURE, REDUCTION, TITANIUM},
	isbn = {0276-7333},
	url = {<Go to ISI>://A1992GZ04000078},
	author = {Fryzuk,Michael D. and Carter, A. and Rettig, S. J.}
}
@article {6990,
	title = {ORGANOMETALLIC NITROSYL CHEMISTRY .48. REACTIVITIES OF REPRESENTATIVE CYCLOPENTADIENYL ETA-4-TRANS-DIENE NITROSYL COMPLEXES OF MOLYBDENUM TOWARD ACETONE},
	journal = {Organometallics},
	volume = {10},
	number = {12},
	year = {1991},
	note = {ISI Document Delivery No.: GV093Times Cited: 20Cited Reference Count: 31},
	month = {Dec},
	pages = {4021-4030},
	type = {Article},
	abstract = {{When CpMo(NO)(eta-4-trans-butadiene) (Cp = eta-5-C5H5) is treated with acetone, a ligand-coupling reaction occurs to form two complexes having the composition CpMo(NO)(eta-4-CH2CHCHCH2CMe2O), one in which the allyl portion of the coupled ligand is endo (1A) and one in which the allyl is exo (1B) with respect to the Cp ligand. Complete structural assignment of 1A and 1B has been effected by using NMR spectroscopic methods. Similar treatment of Cp*Mo(NO)(eta-4-trans-butadiene) (Cp* = eta-5-C5Me5) affords a single organometallic product, 2, which is the Cp* analogue of 1A. The coupling reaction between CpMo(NO)(eta-4-trans-2,5-dimethyl-2,4-hexadiene) and acetone is fairly rapid, the initial products being the endo-allyl (3A) and exo-allyl (3B) complexes. The endo isomer, however, converts quickly and irreversibly to the exo-allyl isomer. If the latter reaction is left for 15 h at ambient conditions, then 3B and [CpMo(NO)]3(mu-2-eta-2-eta-1-O-CMe2)3, which is isolable as a THF solvate (4), are the only organometallic species present in the final reaction mixture. All new complexes isolated during this work have been fully characterized by conventional methods, and crystal structure analyses have been performed on 2, 3B, and 4. Crystals of Cp*Mo(NO)(eta-4-endo-CH2CHCHCH2CMe2O) (2) are orthorhombic, P2(1)2(1)2(1), with a = 9.2465 (15) angstrom},
	keywords = {CARBONYLATION, DIENE COMPLEXES, INSERTION, LIGANDS, METAL},
	isbn = {0276-7333},
	url = {<Go to ISI>://A1991GV09300017},
	author = {Christensen, N. J. and Legzdins,Peter and Trotter, J. and Yee, V. C.}
}
@article {6990,
	title = {ORGANOMETALLIC NITROSYL CHEMISTRY .48. REACTIVITIES OF REPRESENTATIVE CYCLOPENTADIENYL ETA-4-TRANS-DIENE NITROSYL COMPLEXES OF MOLYBDENUM TOWARD ACETONE},
	journal = {Organometallics},
	volume = {10},
	number = {12},
	year = {1991},
	note = {ISI Document Delivery No.: GV093Times Cited: 20Cited Reference Count: 31},
	month = {Dec},
	pages = {4021-4030},
	type = {Article},
	abstract = {{When CpMo(NO)(eta-4-trans-butadiene) (Cp = eta-5-C5H5) is treated with acetone, a ligand-coupling reaction occurs to form two complexes having the composition CpMo(NO)(eta-4-CH2CHCHCH2CMe2O), one in which the allyl portion of the coupled ligand is endo (1A) and one in which the allyl is exo (1B) with respect to the Cp ligand. Complete structural assignment of 1A and 1B has been effected by using NMR spectroscopic methods. Similar treatment of Cp*Mo(NO)(eta-4-trans-butadiene) (Cp* = eta-5-C5Me5) affords a single organometallic product, 2, which is the Cp* analogue of 1A. The coupling reaction between CpMo(NO)(eta-4-trans-2,5-dimethyl-2,4-hexadiene) and acetone is fairly rapid, the initial products being the endo-allyl (3A) and exo-allyl (3B) complexes. The endo isomer, however, converts quickly and irreversibly to the exo-allyl isomer. If the latter reaction is left for 15 h at ambient conditions, then 3B and [CpMo(NO)]3(mu-2-eta-2-eta-1-O-CMe2)3, which is isolable as a THF solvate (4), are the only organometallic species present in the final reaction mixture. All new complexes isolated during this work have been fully characterized by conventional methods, and crystal structure analyses have been performed on 2, 3B, and 4. Crystals of Cp*Mo(NO)(eta-4-endo-CH2CHCHCH2CMe2O) (2) are orthorhombic, P2(1)2(1)2(1), with a = 9.2465 (15) angstrom},
	keywords = {CARBONYLATION, DIENE COMPLEXES, INSERTION, LIGANDS, METAL},
	isbn = {0276-7333},
	url = {<Go to ISI>://A1991GV09300017},
	author = {Christensen, N. J. and Legzdins,Peter and Trotter, J. and Yee, V. C.}
}
