@article {1062,
	title = {Distinctive properties of Cp {\textquoteright} M(NO)(alkyl)(2) (M = MO, W) complexes},
	journal = {Organometallics},
	volume = {24},
	number = {17},
	year = {2005},
	note = {ISI Document Delivery No.: 953ZRTimes Cited: 16Cited Reference Count: 40},
	month = {Aug},
	pages = {4088-4098},
	type = {Review},
	abstract = {This account summarizes our work with the title complexes, which are rare examples of electronically and coordinatively unsaturated transition-metal alkyls that can be isolated under ambient conditions. It first outlines the synthetic methods employed for the preparation of these compounds and then presents their distinctive physical properties. It then classifies the characteristic chemical properties of these complexes in terms of the reactivity being either metal or ligand based, and specific examples of particular transformations are illustrated with reference to the most studied systems.},
	keywords = {CARBON BONDS, CP{\textquoteright}M(NO)R2, INTERMOLECULAR ACTIVATION, MIGRATORY INSERTION, MOLYBDENUM, NITRIC-OXIDE, ORGANOMETALLIC NITROSYL CHEMISTRY, {C-H BONDS},
	isbn = {0276-7333},
	url = {<Go to ISI>://000231124400002},
	author = {Blackmore, I. J. and Jin, X. and Legzdins,Peter}
}
@article {3418,
	title = {ADDITION-REACTIONS OF CPMO(NO)(=CXCME(3)) (X=H, D) COMPLEXES WITH HETEROATOM-HYDROGEN BONDS},
	journal = {Organometallics},
	volume = {14},
	number = {1},
	year = {1995},
	note = {ISI Document Delivery No.: QB554Times Cited: 16Cited Reference Count: 37},
	month = {Jan},
	pages = {407-417},
	type = {Article},
	abstract = {{A mechanistic study of the thermal decomposition of CpMo(NO)(CD(2)CMe(3))(2) in solution provides clear evidence for the formation of CpMo(NO)(=CDCMe(3)). This transient 16-electron neopentylidene complex, either alpha-protio or alpha-deuterio, reads with the heteroatom-hydrogen bonds of amines and alcohols (EHR; R = alkyl, aryl; E = NH, O) to form neopentyl amide and alkoxide complexes of the general form CpMo(NO)(CH(2)CMe(3))(ER). The solid-state molecular structure of CpMo(NO)(CH(2)CMe(3))(NH-p-tolyl) (4) has been determined as a representative three-legged piano-stool molecule in this class. Crystals of 4 are monoclinic, space group P2(1)/c, with a = 11.243(2) Angstrom},
	keywords = {CARBENE COMPLEXES, CARBON BONDS, CRYSTAL-STRUCTURES, LOW-VALENT, {ALKYLIDENE COMPLEXES},
	isbn = {0276-7333},
	url = {<Go to ISI>://A1995QB55400056},
	author = {Legzdins,Peter and Veltheer, J. E. and Young, M. A. and Batchelor, R. J. and Einstein, F. W. B.}
}
@article {2801,
	title = {END-ON VERSUS SIDE-ON BONDING OF DINITROGEN TO DINUCLEAR EARLY TRANSITION-METAL COMPLEXES},
	journal = {Journal of the American Chemical Society},
	volume = {115},
	number = {7},
	year = {1993},
	note = {ISI Document Delivery No.: KW980Times Cited: 72Cited Reference Count: 55},
	month = {Apr},
	pages = {2782-2792},
	type = {Article},
	abstract = {{The preparation of a series of dinuclear complexes of zirconium and tantalum is presented in an effort to determine factors involved in the coordination mode of the bridging dinitrogen ligand. Reduction of ZrCl3[N(SiMe2-CH2PR2)2] (R = Pr(i) and B(t)) with Na/Hg under N2 generate the corresponding dinitrogen complexes {[(R2PCH2-SiMe2)2 SiMe2)2N]ZrCl}2(mu-eta2:eta2-N2); the X-ray crystal structure of the dark blue derivative having R = Pr(i) shows that the dinitrogen unit is bridging in a planar side-on bonding mode. The N-N bond distance is 1.548(7) angstrom, which is the longest such distance for any dinitrogen complex reported. Molecular orbital calculations on this molecule indicate that the N2 unit bonds in a side-on fashion due to the unavailability of one of the d orbitals on each zirconium that would normally be involved in a pi-bond with the antibonding pi*-orbitals of the N2 moiety. This particular zirconium d orbital is unavailable due to the ancillary tridentate ligand which positions the amide donor (and the chloride) to overlap effectively with this d orbital. The results of this MO study also show that the HOMO has delta-symmetry. When the related derivative Zr(eta5-C5H5)Cl2[N(SiMe2CH2PPri2)2] is reduced under N2, the corresponding dinuclear derivative {[(Pri2PCH2SiMe2)2N]Zr(eta5-C5H5)}2(mu-eta1:eta1-N2) has the bridging dinitrogen unit end-on. In this case, the MO analysis shows that the cyclopentadienyl ligand overlaps with that zirconium d orbital which could form the delta-molecular orbital of the side-on mode; as a result, the end-on form is generated. A similar argument can be used to rationalize the end-on binding mode of the dinitrogen unit in the related tantalum derivatives {[(Pri2PCH2SiMe2)2N]Ta=CHR}2(mu-eta1:eta1-N2) (R = Bu(t), Ph), since now the alkylidene unit effectively overlaps with the same d orbital Crystals of {[(Pri2PCH2-SiMe2)2N]ZrCl}(mu-eta2:eta2-N2)-CH3C6H5 are monoclinic},
	keywords = {ACTIVATION, CARBON BONDS, CHEMISTRY, MOLECULAR-STRUCTURE, N-2 LIGAND, NITROGEN-FIXATION, PHOSPHINE COMPLEXES, RAY CRYSTAL-STRUCTURE, TANTALUM COMPLEXES, X-RAY},
	isbn = {0002-7863},
	url = {<Go to ISI>://A1993KW98000028},
	author = {Fryzuk,Michael D. and Haddad, T. S. and Mylvaganam, M. and McConville, D. H. and Rettig, S. J.}
}
@article {2730,
	title = {INSERTIONS OF HETEROCUMULENES INTO THE M-C SIGMA-BONDS OF CP-ASTERISK-M(NO)(ARYL)2 (M=MO, W) COMPLEXES},
	journal = {Organometallics},
	volume = {12},
	number = {10},
	year = {1993},
	note = {ISI Document Delivery No.: MC322Times Cited: 14Cited Reference Count: 32},
	month = {Oct},
	pages = {4234-4240},
	type = {Note},
	abstract = {{Treatment of the 16-valence-electron complexes Cp*M(NO)(aryl)2 (Cp* = eta5-C5Me5; M = Mo, W; aryl = phenyl (Ph), p-tolyl) with the heterocumulenes carbon disulfide, p-tolyl isocyanate, and carbon dioxide leads to the eta2-thiocarboxylate, eta2-amide-, and eta2-carboxylate-containing complexes, respectively, in 10-65\% isolated yields. Furthermore, Cp* W(NO) (eta2-S2C-Ph)(Ph) (1) reacts with trimethylphosphine to form Cp*W(NO)(eta2-S2C(PMe3)Ph)(Ph) (10), which contains a zwitterionic phosphonium betaine ligand. The solid-state molecular structure of 10-CH2Cl2 has been established by a single-crystal X-ray crystallographic analysis. Crystal data for Cp*W(NO)(eta2-S2C(PMe3)Ph)(Ph). CH2Cl2: monoclinic},
	keywords = {ALKYL, CARBON BONDS, CO2, H-BONDS, ORGANOMETALLIC NITROSYL CHEMISTRY, REACTIVITY, TUNGSTEN, WATER, X-ray structure},
	isbn = {0276-7333},
	url = {<Go to ISI>://A1993MC32200074},
	author = {Brouwer, E. B. and Legzdins,Peter and Rettig, S. J. and Ross, K. J.}
}
