@article {1110,
	title = {Homoleptic, sigma-bonded octahedral superelectrophilic metal carbonyl cations of iron(II), ruthenium(II), and osmium(II). Part 2: Syntheses and characterizations of [M(CO)(6)][BF4](2) (M = Fe, Ru, Os)},
	journal = {Inorganic Chemistry},
	volume = {44},
	number = {12},
	year = {2005},
	note = {ISI Document Delivery No.: 934LPTimes Cited: 8Cited Reference Count: 51},
	month = {Jun},
	pages = {4206-4214},
	type = {Article},
	abstract = {As the first examples of homoleptic, sigma-bonded superelectrophilic metal carbonyl cations with tetrafluoroborate [BF4](-) as the counter anions three thermally stable salts of the composition [M(CO)(6)][BF4](2) (M = Fe, Ru, Os) have been synthesized and extensively characterized by thermochemical, structural, and spectroscopic methods. A common synthetic route, the oxidative carbonylation of either Fe(CO)(5) (XeF2 as the oxidizer) or M-3(CO)(12) (M = Ru, Os) (F-2 as the oxidizer) in the conjugate Bronsted-Lewis superacid HF/BF3, was employed. The thermal behavior of the three salts, studied by differential scanning calorimetry (DSC) and gas-phase IR spectroscopy of the decomposition products, has been compared to that of the corresponding [SbF6](-) salts. The molecular structures Of [M(CO)(6)][BF4](2) (M = Fe, Os) were obtained by single-crystal X-ray diffraction at 100 K. X-ray powder diffraction data for [M(CO)(6)][BF4](2) (M = Ru, Os) were obtained between 100 and 300 K in intervals of 50 K. All three salts are isostructural and crystallized in the tetragonal space group I4/m (No. 87). As for the corresponding [M(CO)(6)][SbF6](2) salts (M = Fe, Flu, Os), similar unit cell parameters and vibrational fundamentals were also found for the three [BF4](-) compounds. For the structurally characterized salts [M(CO)(6)][BF4](2) (M =. Fe, Os), very similar bond parameters for both cations and anions were found. Hence, the invariance of structural and spectroscopic properties Of [M(CO)(6)](2+) cations (M = Fe, Ru, Os) extended from the fluoroantimonates [Sb2F11](-) and [SbF6](-) as counteranions also to [BF4](-).},
	keywords = {ANTIMONY PENTAFLUORIDE, CHEMISTRY, GAS-PHASE, LEWIS-ACIDS, MAS-NMR-SPECTRA, MOLECULAR-STRUCTURE, SPECTROSCOPIC PROPERTIES, SYSTEM, UNDECAFLUORODIANTIMONATE(V), VIBRATIONAL-SPECTRA},
	isbn = {0020-1669},
	url = {<Go to ISI>://000229710600022},
	author = {Finze, M. and Bernhardt, E. and Willner, H. and Lehmann, C. W. and Aubke, F.}
}
@article {829,
	title = {Investigations of alpha-siloxy-epoxide ring expansions forming 1-azaspirocyclic ketones},
	journal = {Journal of Organic Chemistry},
	volume = {69},
	number = {17},
	year = {2004},
	note = {ISI Document Delivery No.: 845XHTimes Cited: 13Cited Reference Count: 97},
	month = {Aug},
	pages = {5676-5683},
	type = {Article},
	abstract = {The construction of 1-azaspirocyclic cycloalkanones using a siloxy-epoxide semipinacol ring expansion process was examined. Functionalized 1-azaspiro[5.5]undecan-7-ones (1-azaspirocyclic cyclohexanones) proceeded in high chemical yields with complete diastereoselectivity using titanium tetrachloride as the Lewis acid promoter. The formation of functionalized 6-azaspiro[5.4]-decan-1-ones (1-azaspirocyclic cyclopentanones) proceeded in high chemical yield with little diastereoselectivity. Modification of reaction parameters such as the Lewis acid promoter or the nature of the silyl ether allowed for the preferential formation of either ("anti" or "syn" 1,2 alkyl shift) diastereomeric product. An explanation for the different reactivity profiles between the cyclobutanol silyl ethers and cyclopentanol silyl ethers is provided.},
	keywords = {1ST TOTAL-SYNTHESIS, ALDOL ALDOL PROCESS, ASYMMETRIC-SYNTHESIS, BAEYER-VILLIGER OXIDATION, LEWIS-ACIDS, ORGANIC-SYNTHESIS, PRACTICAL, QUATERNARY CARBON CENTERS, REARRANGEMENT, SEMI-PINACOL, SILYL ETHER REARRANGEMENTS, STEREOSELECTIVE CONSTRUCTION},
	isbn = {0022-3263},
	url = {<Go to ISI>://000223278200021},
	author = {Dake, G. R. and Fenster, M. D. B. and Fleury, M. and Patrick, B. O.}
}
@article {5049,
	title = {Synthesis, structure, spectroscopic and electrochemical study of the paramagnetic compound [2-(eta(7)-C7H7)-7,11-F-2-2,1-closo-MoTeB10H8]},
	journal = {Journal of the Chemical Society-Dalton Transactions},
	number = {9},
	year = {2001},
	note = {ISI Document Delivery No.: 428HHTimes Cited: 0Cited Reference Count: 36},
	pages = {1520-1523},
	type = {Article},
	abstract = {{The reaction of [NEt4][7-nido-TeB10H11] 1 with [Mo(CO)(3)(eta (7)-C7H7)][BF4] 2 in dichloromethane yields the novel paramagnetic, B-fluorinated, "mixed-sandwich" compound [2-(eta (7)-C7H7)-7,11-F-2-2,1-closo-MoTeB10H8] 3 in 19\% yield. An X-ray diffraction study of 3 establishes the closo twelve-vertex MoTeB10-cage structure with two B-F units at adjacent positions. The structure of 3 was solved in space group Pna2(1) with unit cell dimensions of a=16.7598(18)},
	keywords = {CARBORANES, CHEMISTRY, COMPLEXES, FLUORINATION, LEWIS-ACIDS, LIGANDS, ORGANOTRANSITION-METAL METALLACARBORANES},
	isbn = {1472-7773},
	url = {<Go to ISI>://000168455900023},
	author = {di Biani, F. F. and Laschi, F. and Zanello, P. and Ferguson, G. and Trotter, J. and O{\textquoteright}Riordan, G. M. and Spalding, T. R.}
}
@article {4011,
	title = {Coordination chemistry, and catalytic conversions, of H2S},
	journal = {Pure and Applied Chemistry},
	volume = {69},
	number = {10},
	year = {1997},
	note = {ISI Document Delivery No.: YB877Times Cited: 21Cited Reference Count: 6831st International Conference on the Coordination ChemistryAUG 18-23, 1996VANCOUVER, CANADA},
	month = {Oct},
	pages = {2213-2220},
	type = {Proceedings Paper},
	abstract = {Some reactions of H2S with solutions of Pd- and Ru-phosphine complexes are described. The Pd systems involve sulfur abstraction and generation of H-2, catalytic conversions of H2S to H-2, and attempts to catalyse the (H2S {\textendash}> H-2 + {\textquoteright}S{\textquoteright}) reaction. The Ru studies have led to crystallographic characterisation of a reversibly formed H2S complex, as well as more familiar oxidative addition-type chemistry of H2S. This lecture/review naturally emphasises work carried out at this University (UBC).},
	keywords = {ASPECTS, BIS(DIPHENYLPHOSPHINO)METHANE DPM, DINUCLEAR PALLADIUM(I) COMPLEXES, HYDROGEN-SULFIDE, LEWIS-ACIDS, Mechanistic, MOLECULAR-HYDROGEN, PHOSPHINE COMPLEXES, S-H, SULFUR-CONTAINING LIGANDS, TRANSITION-METAL COMPLEXES},
	isbn = {0033-4545},
	url = {<Go to ISI>://A1997YB87700028},
	author = {James, Brian R.}
}
@article {4079,
	title = {Synthesis and X-ray structure of an H2S complex, RuCl2(P-N)(P(p-tolyl)(3))(SH2) (P-N=o-(diphenylphosphino)-N,N-dimethylaniline)},
	journal = {Inorganic Chemistry},
	volume = {36},
	number = {24},
	year = {1997},
	note = {ISI Document Delivery No.: YH560Times Cited: 24Cited Reference Count: 25},
	month = {Nov},
	pages = {5426-\&},
	type = {Article},
	abstract = {The interaction of transition metal complexes with H2S continues to attract attention. Such chemistry is of relevance in the biological sulfur cycle, in the formation of ores, in hydrodesulfurization catalysis, and in the use of H2S as a source of Hz and elemental sulfur (or organosulfur compounds). Literature dealing with these topics is plentiful and can be traced through recent references.(1,2) However, isolation and characterization of metal complexes containing H2S remain challenging,(2,3) as such species tend to undergo oxidative addition reactions to give products with SH ligands or bridged or terminal sulfide,(4) and only recently has an H2S complex been characterized crystallographically.(2) This was the structure reported by Sellmann et al. of the Ru(II)-complex Ru(SH2)(PPh3)({\textquoteright}S-4{\textquoteright}). THF ({\textquoteright}S-4{\textquoteright} = 1,2-bis[(2-mercaptophenyl)thio]ethane(2-)) formed by the reaction of the polymeric complex [Ru(PPh3)({\textquoteright}S-4{\textquoteright})](x) with liquid H2S at -70 degrees C; the reaction with H2S gas at room temperature in THF resulted in a mixture of the bridging sulfide complex [(mu-S-2){Ru(PPh3)({\textquoteright}S-4{\textquoteright})}(2)] and other uncharacterized products depicting the more typical reactivity of H2S with transition metal complexes.(2)},
	keywords = {ACTIVATION, hydride, HYDROGEN, LEWIS-ACIDS, MERCAPTO, REACTIVITY, S-H, sulfide, SULFUR-CONTAINING LIGANDS, TRANSITION-METAL COMPLEXES},
	isbn = {0020-1669},
	url = {<Go to ISI>://A1997YH56000003},
	author = {Mudalige, D. C. and Ma, E. S. and Rettig, S. J. and James, Brian R. and Cullen, W. R.}
}
