@article {2494,
	title = {N,O-Chelates of Group 4 Metals: Contrasting the Use of Amidates and Ureates in the Synthesis of Metal Dichlorides},
	journal = {European Journal of Inorganic Chemistry},
	number = {18},
	year = {2009},
	note = {ISI Document Delivery No.: 467LNTimes Cited: 5Cited Reference Count: 69Leitch, David C. Beard, J. David Thomson, Robert K. Wright, Vincent A. Patrick, Brian O. Schafer, Laurel L.},
	month = {Jun},
	pages = {2691-2701},
	type = {Article},
	abstract = {A series of dichloride complexes of titanium and zirconium with amidate and ureate ancillary ligands have been prepared, Three examples of bis(amidate)dichlorotitanium and zirconium complexes were effectively synthesized through salt metathesis with metal tetrachloride as starting materials. Optimum results were achieved using sodium amidate salts formed from sodium bis(trimethylsilyl)amide and neutral amide proligands, while other methods were ineffective. Use of electron-donating ureate ligands in lieu of amidates enables preparation through alternate routes. Protonolysis of Ti(NMe2)(2)Cl-2 and Zr(NMe2)(2)Cl-2(dme) with urea proligands leads to dichlorobis(ureate) complexes in good yield. Using a tethered bis(ureate) ligand eliminates the fluxional behaviour and coordination isomerism observed for both bis(amidate) and bis(ureate) zirconium complexes. ((C) Wiley-VCH Verlag GmbH \& Co. KGaA, 69451 Weinheim, Germany, 2009)},
	keywords = {amidate, BIS(AMIDATE) TITANIUM PRECATALYST, CATALYTIC, Chelates, COORDINATION CHEMISTRY, EARLY, GUANIDINATE LIGANDS, HYDROAMINATION, INTERMOLECULAR HYDROAMINATION, N, O ligands, OLEFIN POLYMERIZATION, SOLUTION DYNAMICS, STRUCTURAL-CHARACTERIZATION, TITANIUM, TRANSITION-METALS, Ureate, ZIEGLER-NATTA POLYMERIZATION, ZIRCONIUM},
	isbn = {1434-1948},
	url = {<Go to ISI>://000267740500015},
	author = {Leitch, D. C. and Beard, J. D. and Thomson, R. K. and Wright, V. A. and Patrick, B. O. and Schafer, L. L.}
}
@article {2259,
	title = {Rare-earth amidate complexes. Easily accessed initiators for epsilon-caprolactone ring-opening polymerization},
	journal = {Inorganic Chemistry},
	volume = {47},
	number = {18},
	year = {2008},
	note = {ISI Document Delivery No.: 346UBTimes Cited: 8Cited Reference Count: 76Stanlake, Louisa J. E. Beard, J. David Schafer, Laurel L.},
	month = {Sep},
	pages = {8062-8068},
	type = {Article},
	abstract = {{The direct synthesis of yttrium amidate complexes using the simple reaction of amide proligands and Y(N(SiMe3)(2))(3) results in the high-yielding preparation and isolation of crystalline, monomeric materials. The complex, tris(N-2{\textquoteright},6{\textquoteright}-diisopropylphenyl(naphthyl)amidate)yttrium mono(tetrahydrofuran) (4), was structurally determined to be a 7-coordinate C, symmetric structure, maintaining one bound tetrahydrofuran molecule. Compound 4 (C12H17[NCO]C10H1)(3)Y(C4H8O) crystallized in the monoclinic space group P2(1)/c with a = 13.7820(11) angstrom},
	keywords = {BETA-DIKETIMINATE, BIS(AMIDATE) TITANIUM PRECATALYST, CATALYTIC-ACTIVITY, COMPLEXES, LANTHANIDE, METHYL-METHACRYLATE, MOLECULAR-STRUCTURES, N, ORGANOLANTHANIDE, PHENYL ISOCYANATE, RAY CRYSTAL-STRUCTURES, SIGMA-BOND},
	isbn = {0020-1669},
	url = {<Go to ISI>://000259093700022},
	author = {Stanlake, L. J. E. and Beard, J. D. and Schafer, L. L.}
}
@article {1456,
	title = {Group 4 bis(pyrimidinoxide) complexes. Investigations of electronic effects in catalytic hydroamination},
	journal = {Organometallics},
	volume = {25},
	number = {22},
	year = {2006},
	note = {ISI Document Delivery No.: 094IJTimes Cited: 22Cited Reference Count: 130Lee, Alison V. Schafer, Laurel L.},
	month = {Oct},
	pages = {5249-5254},
	type = {Review},
	abstract = {Substituted pyrimidinols, acidic aromatic alcohols, were used as proligands to synthesize metal complexes of Ti and Zr. These new pseudotetrahedral complexes were investigated as catalysts for the hydroamination of alkynes and alkenes. The stabilized anion of the pyrimidinoxide ligand results in enhanced electrophilicity at the metal center. These electronically modified complexes are catalytically active, but their enhanced reactivity results in reduced selectivity in comparison with the related bis(phenoxide) complexes in alkyne hydroamination. This reactivity was used to advantage in the cyclohydroamination of select aminoalkene substrates with the Zr bis(pyrimidinoxide) complex.},
	keywords = {ALKENES, ANTI-MARKOVNIKOV HYDROAMINATION, ARYLOXIDE, BIS(AMIDATE) TITANIUM PRECATALYST, HYDROAMINATION, IMIDO COMPLEXES, INTERMOLECULAR, LIGANDS, MEDIATED INTRAMOLECULAR, OXIDATIVE AMINATION, TERMINAL ALKYNES},
	isbn = {0276-7333},
	url = {<Go to ISI>://000241232800013},
	author = {Lee, A. V. and Schafer, L. L.}
}
@article {1601,
	title = {A pentagonal pyramidal zirconium imido complex for catalytic hydroamination of unactivated alkenes},
	journal = {Organometallics},
	volume = {25},
	number = {17},
	year = {2006},
	note = {ISI Document Delivery No.: 070PZTimes Cited: 66Cited Reference Count: 40Thomson, Robert K. Bexrud, Jason A. Schafer, Laurel L.},
	month = {Aug},
	pages = {4069-4071},
	type = {Article},
	abstract = {The first, isolable group 4 imido complexes capable of promoting intramolecular olefin hydroamination for the preparation of N-containing heterocycles are presented. The structurally characterized 6-coordinate bis(amidate)-supported zirconium imido complex is a rare example of distorted-pentagonal-pyramidal geometry.},
	keywords = {ALKYNE HYDROAMINATION, allenes, AMIDATE COMPLEXES, BIS(AMIDATE) TITANIUM PRECATALYST, C-H ACTIVATION, HYDROAMINATION, INTERMOLECULAR HYDROAMINATION, INTRAMOLECULAR, REACTIVITY, TEMPERATURE, TI(NME2)(4)},
	isbn = {0276-7333},
	url = {<Go to ISI>://000239536800007},
	author = {Thomson, R. K. and Bexrud, J. A. and Schafer, L. L.}
}
