@article {699,
	title = {Thermal activation of hydrocarbon C-H bonds initiated by a tungsten allyl complex},
	journal = {Journal of the American Chemical Society},
	volume = {125},
	number = {49},
	year = {2003},
	note = {ISI Document Delivery No.: 750QETimes Cited: 12Cited Reference Count: 62},
	month = {Dec},
	pages = {15210-15223},
	type = {Article},
	abstract = {Gentle thermolysis of the allyl complex, (CpW)-W-*(NO)(CH2CMe3)(eta(3)-H2CCHCMe2) (1), at 50 degreesC in neat hydrocarbon solutions results in the loss of neopentane and the generation of transient intermediates that subsequently activate solvent C-H bonds. Thus, thermal reactions of 1 with tetramethylsilane, mesitylene, and benzene effect single C-H activations and lead to the exclusive formation of (CpW)-W-*(NO)(CH2SiMe3)(eta(3)-H2CCHCMe2) (2), (CpW)-W-*(NO)(CH2C6H3-3,5-Me-2)(eta(3)-H2CCHCMe2) (3), and (CpW)-W-*(NO)(C6H5)(eta(3)-H2CCHCMe2) (4), respectively. The products of reactions of 1 with other methyl-substituted arenes indicate an inherent preference of the system for the activation of stronger arene sp(2) C-H bonds. For example, C-H bond activation of p-xylene leads to the formation of (CpW)-W-*(NO)(CH2C6H4-4-Me)(eta(3)-H2CCHCMe2) (5) (26\%) and (CpW)-W-*(NO)(C6H3-2,5-Me-2)(eta(3)-H2CCHCMe2) (6) (74\%). Mechanistic and labeling studies indicate that the transient C-H-activating intermediates are the allene complex, (CpW)-W-*(NO)(eta(2)-H2C=C=CMe2) (A), and the eta(2)-diene complex, (CpW)-W-*(NO)(eta(2)-H2C=CHC(Me)=CH2) (B). Intermediates A and B react with cyclohexene to form (CpW)-W-*(NO)(eta(3)-CH2C(2-cyclohexenyl)CMe2)(H) (18) and (CpW)-W-*(NO)(eta(3)-CH2CHC)(Me)CH2CbetaH(C4H8)CalphaH (19), respectively, and intermediate A can be isolated as its PMe3 adduct, (CpW)-W-*(NO)(PMe3)(eta(2)-H2C=C=CMe2) (20). Interestingly, thermal reaction of 1 with 2,3-dimethylbut-2-ene results in the formation of a species that undergoes eta(3) {\textendash}> eta(1) isomerization of the dimethylallyl ligand following the initial C-H bond-activating step to yield (CpW)-W-*(NO)(eta(3)-CMe2CMeCH2)(eta(1)-CH2CHCMe2) (21). Thermolyses of 1 in alkane solvents afford allyl hydride complexes resulting from three successive C-H bond-activation reactions. For instance, 1 in cyclohexane converts to (CpW)-W-*(NO)(eta(3)-C6H9)(H) (22) with dimethylpropylcyclohexane being formed as a byproduct, and in methylcyclohexane it forms the two isomeric complexes, (CpW)-W-*(NO)(eta(3)-C7H11)(H) (23a,b). All new complexes have been characterized by conventional spectroscopic methods, and the solid-state molecular structures of 2, 3, 4, 18, 19, 20, and 21 have been established by X-ray crystallographic analyses.},
	keywords = {ALKYLIDENE COMPLEXES, ALLENE, CHEMICAL-PROPERTIES, COMPLEXES, CRYSTAL-STRUCTURE, ETA-3-ALLYL COMPLEXES, MOLECULAR-STRUCTURE, ORGANOMETALLIC NITROSYL CHEMISTRY, SOLID-STATE, STRUCTURAL CHARACTERIZATION, TRANSITION-METAL COMPLEXES},
	isbn = {0002-7863},
	url = {<Go to ISI>://000187007400050},
	author = {Ng, S. H. K. and Adams, C. S. and Hayton, T. W. and Legzdins,Peter and Patrick, B. O.}
}
@article {5173,
	title = {Microwave spectrum, structure, and hyperfine constants of Kr-AgCl: Formation of a weak Kr-Ag covalent bond},
	journal = {Journal of Molecular Spectroscopy},
	volume = {206},
	number = {1},
	year = {2001},
	note = {ISI Document Delivery No.: 428BNTimes Cited: 29Cited Reference Count: 38},
	month = {Mar},
	pages = {33-40},
	type = {Article},
	abstract = {The pure rotational spectrum of the complex Kr-AgCl has been measured between 8-15 GHz using a cavity pulsed-jet Fourier transform microwave spectrometer. The complex was found to be linear and relatively rigid, with a Kr-Ag bond length of similar to2.641 Angstrom. The Kr-Ag stretching frequency was estimated to be 117 cm(-1). Ab initio calculations performed at the MP2 level of theory gave the geometry, vibration frequencies, Kr-Ag bond dissociation energy, and orbital populations. The Kr-Ag bond dissociation energy was estimated to be -28 kJ mol(-1). The Kr-Ag force constant and dissociation energy are greater than those of Ar-Ag in Ar-AgCl. The chlorine nuclear quadrupole coupling constants show slight changes on complex formation. Ab initio orbital population analysis shows a small shift in sigma -electron density from Kr to Ag on complex formation. The combined experimental and ab initio results are consistent with the presence of a weak Kr-Ag covalent bond. (C) 2001 Academic Press},
	keywords = {ATOMS, COMPLEXES, CORRELATED MOLECULAR CALCULATIONS, DER-WAALS, FOURIER-TRANSFORM SPECTROSCOPY, GAUSSIAN-BASIS SETS, LASER-ABLATION, RAMAN, ROTATIONAL SPECTRUM, STABILITY, TRANSITION-METAL COMPLEXES},
	isbn = {0022-2852},
	url = {<Go to ISI>://000168441400004},
	author = {Reynard, L. M. and Evans, C. J. and Gerry, M. C. L.}
}
@article {4651,
	title = {Dimeric rhodium mu-silylene and mu-eta(2)-silyl complexes: Catalytic silicon-silicon bond formation and x-ray structures of [{Pr(i)(2)PCH2CH2PPr(i)(2)}Rh](2)(mu-SiRR {\textquoteright})(2) (R = R {\textquoteright} = Ph and R = Me, R {\textquoteright} = Ph) and [{Pr(i)(2)PCH2CH2PPr(i)(2)}Rh(H)](2)(},
	journal = {Organometallics},
	volume = {18},
	number = {6},
	year = {1999},
	note = {ISI Document Delivery No.: 178FRTimes Cited: 29Cited Reference Count: 32},
	month = {Mar},
	pages = {958-969},
	type = {Article},
	abstract = {The stoichiometric and catalytic reactions of secondary silanes with the rhodium hydride bridged dimer [(dippe)Rh](2)(mu-H)(2) (1; dippe = 1,2-bis(diisopropylphosphino)ethane) are described. The reaction of 1 with Ph2SiH2 results in the formation of the bis(mu-silylene) complex [(dippe)Rh](2)(mu-SiPh2)(2) (2a); a similar reaction ensues upon addition of MePhSiH2 or Me(p)TolSiH(2) ((P)Tol =p-tolyl) to 1 except that the bis(silylene) complexes exist as a mixture of cis and trans stereoisomers. Dimethylsilane reacts with 1 to generate the dinuclear complex [(dippe)Rh(H)](2)(mu-eta(2)-SiMe2)(2) (4d). The hydride dimer acts as a catalyst precursor for the dimerization of excess Ph2SiH2 to tetraphenyldisilane (Ph2SiHSiHPh2). A catalytic cycle is proposed that consists of dinuclear intermediates.},
	keywords = {BONDS, hydride complexes, HYDROSILYLATION, REACTIVITY, SECONDARY SILANES, SI, TRANSITION-METAL COMPLEXES},
	isbn = {0276-7333},
	url = {<Go to ISI>://000079256000005},
	author = {Rosenberg, L. and Fryzuk,Michael D. and Rettig, S. J.}
}
@article {4326,
	title = {Density functional study of spin state in CpM(NO)X-2 (M=Mo, Cr; X=Cl, NH2, CH3): Spectrochemical and nephelauxetic effects in organometallic compounds},
	journal = {Organometallics},
	volume = {17},
	number = {4},
	year = {1998},
	note = {ISI Document Delivery No.: YY508Times Cited: 19Cited Reference Count: 83},
	month = {Feb},
	pages = {615-622},
	type = {Article},
	abstract = {The relationship between spin state and metal-ligand bonding interactions in CpM(NO)Xa species was investigated using density functional computational techniques. The geometries of CpM(NO)Cl-2 (M = Cr, Mo), CpCr(NO)(NH2)X, and CpCr(NO)(CH3)X (X = Cl, CH3) were optimized at the DFT-B3LYP level for both the diamagnetic (S = 0) and paramagnetic (S = 1) electronic configurations. While the geometric parameters of the singlet compounds matched well with structures determined experimentally, the Cr-NO bond lengths in the triplet Species exceeded the experimentally observed range by a significant margin, thereby indicating a propensity for nitrosyl-ligand dissociation from the high-spin complexes. The order of relative singlet vs triplet spin-state stability (expressed as Delta Es-t (kcal/mol)) was determined to be CpCr(NO)Cl-2 (8.20) > CpCr(NO)(CH3)Cl (1.52) approximate to CpCr(NO)(NH2)Cl (0.95), > CpCr(NO)(CH3)(2) (-2.37) > CpCr(NO)(NH2)CH3 (-9.55) > CpMQ(NO)Cl-2 (-17.62). The amide pi-donation increases the HOMO-LUMO energy splitting, thus favoring the diamagnetic configuration. The alkyl ligand reduces the electron-electron repulsion through orbital expansion, thereby lowering the relative energy of the singlet state. Extended Huckel molecular-orbital calculations were performed on the DFT-optimized structures to help rationalize the metal-ligand bonding interactions, and interelectron repulsions were quantified by evaluation of the Coulomb (S) and exchange (K) integrals based on the B3LYP-optimized triplet spin-state geometries.},
	keywords = {DINITROGEN CLEAVAGE, EFFECTIVE CORE POTENTIALS, GROUP-6 COMPLEXES, LIGANDS, MOLECULAR CALCULATIONS, NITROSYL CHEMISTRY, OLEFIN POLYMERIZATION, PI-ACCEPTOR, POLYMERIZATION CATALYSTS, TRANSITION-METAL COMPLEXES, X-RAY},
	isbn = {0276-7333},
	url = {<Go to ISI>://000072154500023},
	author = {Legzdins,Peter and McNeil, W. S. and Smith, K. M. and Poli, R.}
}
@article {4297,
	title = {Intramolecular protonation and other mechanisms for substitution reactions of hydrido(thiolato)- and di(thiolato)-ruthenium(II) phosphine complexes},
	journal = {Inorganica Chimica Acta},
	volume = {280},
	number = {1-2},
	year = {1998},
	note = {ISI Document Delivery No.: 124VGTimes Cited: 3Cited Reference Count: 28},
	month = {Oct},
	pages = {75-86},
	type = {Article},
	abstract = {Reactions of cct-RuH(SR) (CO)(2)(PPh3)(2) (1) (cct = cis, cis, traits) with R{\textquoteright}SH provide cct-RuH(SR{\textquoteright}) (CO)(2)(PPh3)(2) (R = alkyl, aryl); based on described kinetic data, the proposed mechanism involves PPh3 loss, coordination of R{\textquoteright}SH, intramolecular protonation of RS- by R{\textquoteright}SH, and RSH elimination. The intramolecular protonation step circumvents a potentially slow RSH reductive elimination step. A similar mechanism is proposed for the thiol exchange reactions of cct-Ru(SR)(2)(CO)(2)(PPh3)(2) (2). A corresponding dissociative mechanism is also proposed for the reaction of 1 with P(p-tolyl)(3), which gives cct-RuH(SR) (CO)(2)(PPh3) (P(p-tolyl)(3)) and cct-RuH(SR) (CO)(2)(P(p-tolyl)(3))(2). Other reactions described include the reactions of 1 with H-2, CO, HCl and PPh3, and the reactions of 2 with P(p-tolyl)(3) and H-2. Exposure to light causes 2 to dimerize in solution. (C) 1998 Elsevier Science S.A. All rights reserved.},
	keywords = {ACTIVE-SITES, EXCHANGE, hydride complexes, IRON-SULFUR PROTEINS, kinetics and mechanism, LIGANDS, MOLECULAR-HYDROGEN, nitrogenase, ruthenium complexes, SYNTHETIC ANALOGS, TETRANUCLEAR CLUSTERS <FE4S4(SR)4>2, thiolate complexes, THIOLATO, TRANSITION-METAL COMPLEXES},
	isbn = {0020-1693},
	url = {<Go to ISI>://000076202900012},
	author = {Jessop, P. G. and James, Brian 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.}
}
@article {3913,
	title = {Synthesis, derivatization and structural characterization of octahedral tris(5-phenyl-4,6-dipyrrinato) complexes of cobalt(III) and iron(III)},
	journal = {Inorganica Chimica Acta},
	volume = {263},
	number = {1-2},
	year = {1997},
	note = {ISI Document Delivery No.: YD821Times Cited: 48Cited Reference Count: 43},
	month = {Oct},
	pages = {279-286},
	type = {Article},
	abstract = {{The formation of octahedral tris(5-phenyl-4,6-dipyrrinato) complexes of cobalt(III) and iron(III) of p-substituted (-H, -CO2Me, -NO2) 5-phenyl-4,6-dipyrrins is described. The molecular structure of the parent cobalt(III) complex was determined by X-ray crystallography. Crystals of C45H33N6Co . C3H6O are monoclinic},
	keywords = {5-phenyldipyrromethanes, cobalt(III) chelates, COMPLEXES, COPPER(II), crystal structures, DIPYRROMETHENES, ION, iron(III) chelates, meso-phenyldipyrrinato, meso-phenyldipyrrins, NICKEL(II), PYRROLE PIGMENTS, TRANSITION-METAL COMPLEXES},
	isbn = {0020-1693},
	url = {<Go to ISI>://A1997YD82100035},
	author = {Bruckner, C. and Zhang, Y. J. and Rettig, S. J. and Dolphin, D.}
}
@article {3625,
	title = {Synthesis of meso-phenyl-4,6-dipyrrins, preparation of their Cu(II), Ni(II), and Zn(II) chelates, and structural characterization of bis[meso-phenyl-4,6-dipyrrinato]Ni(II)},
	journal = {Canadian Journal of Chemistry-Revue Canadienne De Chimie},
	volume = {74},
	number = {11},
	year = {1996},
	note = {ISI Document Delivery No.: WC124Times Cited: 73Cited Reference Count: 58},
	month = {Nov},
	pages = {2182-2193},
	type = {Article},
	abstract = {{meso-Phenyldipyrromethanes can be oxidized by 2,6-dicyano-3,5-dichloro-para-benzoquinone (DDQ) to the corresponding meso-phenyldipyrrins. As expected, these novel, stable bipyrrolic pigments readily form metal chelates with copper(II), nickel(II), and zinc(II). Their W-VIS spectra are compared with a series of blown alkyl-substituted dipyrrin chelates and, based oil the W-VIS spectral analysis, the dihedral angle between the two ligands iri the bis[meso-phenyldipyrrinato]Ni(II) complex was calculated to be 42 degrees. The molecular structure of this complex was determined by X-ray crystallography, essentially confirming the calculation. Crystals of C30H22N4Ni are orthorhombic},
	keywords = {CRYSTAL-STRUCTURE, DIPYRROMETHENES, LIGANDS, meso-phenyldipyrrinato transition metal chelates, meso-phenyldipyrrins, meso-phenyldipyrromethanes, MOLECULAR, PYRROLE PIGMENTS, STEREOCHEMISTRY, TRANSITION-METAL COMPLEXES, X-RAY CRYSTALLOGRAPHY},
	isbn = {0008-4042},
	url = {<Go to ISI>://A1996WC12400032},
	author = {Bruckner, C. and Karunaratne, V. and Rettig, S. J. and Dolphin, D.}
}
@article {7016,
	title = {STEREOSELECTIVE PREPARATION OF A RIGID TRIMETHYLENEMETHANE COMPLEX BY REACTION OF ALLENE WITH AN IRIDIUM METHYLIDENE DERIVATIVE - X-RAY CRYSTAL-STRUCTURE OF FAC-IR[ETA-4-C(CH2)3][N(SIME2CH2PPH2)2]},
	journal = {Organometallics},
	volume = {10},
	number = {5},
	year = {1991},
	note = {ISI Document Delivery No.: FM146Times Cited: 4Cited Reference Count: 16},
	month = {May},
	pages = {1642-1644},
	type = {Note},
	abstract = {The trimethylenemethane complex fac-Ir[eta-4-C(CH2)3][N(SiMe2CH2PPh2)2] was prepared from the reaction of the methylidene derivative Ir = CH2[N(SiMe2CH2PPh2)2] with allene.},
	keywords = {3+2 CYCLO-ADDITION, CARBENE COMPLEXES, LIGAND, ORGANIC SYNTHESES, TRANSITION-METAL COMPLEXES},
	isbn = {0276-7333},
	url = {<Go to ISI>://A1991FM14600072},
	author = {Fryzuk,Michael D. and Joshi, K. and Rettig, S. J.}
}
