@article {616,
	title = {Reduction of hafnium(IV) complexes in the presence of molecular nitrogen: Attempts to form dinitrogen complexes of the heaviest group 4 element},
	journal = {Canadian Journal of Chemistry-Revue Canadienne De Chimie},
	volume = {81},
	number = {11},
	year = {2003},
	note = {ISI Document Delivery No.: 746YXTimes Cited: 10Cited Reference Count: 28},
	month = {Nov},
	pages = {1376-1387},
	type = {Article},
	abstract = {The reaction of [P2N2]Li-2(dioxane)(2) with HfCl4(THF)(2) (where [P2N2] = PhP(CH2SiMe2NSiMe2CH2)(2)PPh) results in the formation of the hafnium dichloride complex [P2N2]HfCl2 (1). The behaviour of 1 as a potential precursor in the generation of a dinitrogen coordination complex is described. Reduction of 1 with potassium-graphite (C8K), under dinitrogen, under a variety of conditions led to a number of products, one of which is the dinuclear derivative with bridging P-phenyl groups that has the general formula {[P2N2]Hf}(2) (2). Reduction of the hafnium diiodide [P2N2]HfI2 (3) - prepared via the reaction of 1 with excess Me3SiI - with C8K results in the formation of ([P2N2]Hf)(2)(mu-eta(2):eta(2)-N-2) (4) as the major product of the reaction, while {[P2N2]Hf}(2) (2) and [P2N2]Hf(C7H8) (5) appear to be minor products. Reaction of 1 with 2 equiv of MeMgCl gives [P2N2]HfMe2 (6), which, upon exposure to an atmosphere of H-2, gives the hafnium tetrahydride {[P2N2]Hf}(2)(m-H)(4) (7).},
	keywords = {COORDINATION CHEMISTRY, DERIVATIVES, DINITROGEN, donor ligands, FLUXIONAL BEHAVIOR, hafnium, hydride, macrocycle, mixed, {ALKYL},
	isbn = {0008-4042},
	url = {<Go to ISI>://000186777600031},
	author = {Fryzuk,Michael D. and Corkin, J. R. and Patrick, B. O.}
}
@article {7230,
	title = {THE 1992 ALCAN AWARD LECTURE EXCURSIONS AROUND THE PERIODIC-TABLE - LIGAND DESIGN IN INORGANIC-CHEMISTRY},
	journal = {Canadian Journal of Chemistry-Revue Canadienne De Chimie},
	volume = {70},
	number = {12},
	year = {1992},
	note = {ISI Document Delivery No.: KL565Times Cited: 56Cited Reference Count: 38},
	month = {Dec},
	pages = {2839-2845},
	type = {Article},
	abstract = {An overview is given on the strategy used to come up with the design of a new type of ligand that is appropriate for coordination to both the late metals and the early metals. The coordination chemistry of the potentially tridentate ligand -N(SiMe2CH2PR2)2 is developed starting with the Ni triad and then the heavier members of group 9, namely rhodium and iridium. It is with iridium that reactive fragments such as methylene and vinylidene have been stabilized and their chemistry examined. Extension to groups 3, 4, and the lanthanides is also discussed. With these elements, phosphine coordination imparts new reactivity patterns such as alkane elimination with group 3 and dinitrogen activation with group 4. In addition, the side-on binding mode for N2 attached to a dinuclear zirconium system is also presented.},
	keywords = {asymmetric synthesis, CARBON BOND FORMATION, DERIVATIVES, DINITROGEN, FLUXIONAL BEHAVIOR, HAFNIUM(IV), hydride, MULTI-DENTATE LIGANDS, PHOSPHINE COMPLEXES, RAY CRYSTAL-STRUCTURE},
	isbn = {0008-4042},
	url = {<Go to ISI>://A1992KL56500001},
	author = {Fryzuk,Michael D.}
}
@article {7232,
	title = {MONO(AMIDO-DIPHOSPHINE) COMPLEXES OF YTTRIUM - SYNTHESIS AND X-RAY CRYSTAL-STRUCTURE OF (Y(ETA-3-C3H5)[N(SIME2CH2PME2)2])2(MU-CL)2},
	journal = {Organometallics},
	volume = {11},
	number = {9},
	year = {1992},
	note = {ISI Document Delivery No.: JN066Times Cited: 46Cited Reference Count: 7},
	month = {Sep},
	pages = {2967-2969},
	type = {Note},
	abstract = {The reaction of allylmagnesium chloride with the bis(amido-phosphine) complex YCl[N(SiMe2CH2PMe2)2]2 (1) results in displacement of one of the tridentate ligands rather than simple metathesis of the chloride to generate the new complex {Y(eta-3-C3H5)[N(SiMe2CH2PMe2)2]}2(mu-Cl)2. Careful product analysis showed that the identity of the magnesium byproduct was in fact the bis(amide) derivative Mg[N(SiMe2CH2PMe2)2]2; improved procedures utilize the diallylmagnesium compound Mg(C3H5)2.(dioxane), which obviates the production of MgCl2. Attempts to introduce hydrocarbyl groups on the Mono(ligand) derivative YCl2[N(SiMe2CH2PMe2)2] by control Of stoichiometry have so far failed, with the exception of the formation of the bis(allyl) derivative [Y(eta-3-C3H5)2[N(SiMe2CH2PMe2)2] by the reaction with Mg(C3H5)2.(dioxane); this bis(allyl) derivative acts as a catalyst precursor for the polymerization of ethylene.},
	keywords = {FLUXIONAL BEHAVIOR, LANTHANUM, LUTETIUM, PHOSPHINE COMPLEXES},
	isbn = {0276-7333},
	url = {<Go to ISI>://A1992JN06600006},
	author = {Fryzuk,Michael D. and Haddad, T. S. and Rettig, S. J.}
}
@article {7013,
	title = {PHOSPHINE COMPLEXES OF THE EARLY METALS AND THE IANTHANOIDS},
	journal = {Pure and Applied Chemistry},
	volume = {63},
	number = {6},
	year = {1991},
	note = {ISI Document Delivery No.: FN255Times Cited: 21Cited Reference Count: 2314TH INTERNATIONAL CONF ON ORGANOMETALLIC CHEMISTRYAUG 19-24, 1990DETROIT, MIINT UNION PURE \& APPL CHEM, DIV INORGAN CHEM, WAYNE STATE UNIV},
	month = {Jun},
	pages = {845-850},
	type = {Proceedings Paper},
	abstract = {The coordination chemistry of the mixed-donor tridentate ligand -N(SiMe2CH2PR2)2 with the early transition metals of groups 3 and 4 and the lanthanide elements will be presented. This ancillary ligand has allowed for the formation of phosphine complexes of these hard elements which has in turn induced new reactivity patterns for hydrocarbyl ligands.},
	keywords = {DERIVATIVES, F-BLOCK METALS, FLUXIONAL BEHAVIOR, GROUP-4, HAFNIUM(IV), LIGANDS, RAY CRYSTAL-STRUCTURE, ZIRCONIUM(IV)},
	isbn = {0033-4545},
	url = {<Go to ISI>://A1991FN25500008},
	author = {Fryzuk,Michael D. and Haddad, T. S. and Berg, D. J. and Rettig, S. J.}
}
