@article {1351,
	title = {Synthesis and coordination chemistry of the diamido-arsine ligand [NAsN] (NAsN = PhAs(CH2SiMe2NPh)(2)))},
	journal = {Canadian Journal of Chemistry-Revue Canadienne De Chimie},
	volume = {84},
	number = {12},
	year = {2006},
	note = {Carmichael, Christopher D. Shaver, Michael P. Fryzuk, Michael D.},
	month = {Dec},
	pages = {1667-1678},
	abstract = {The preparation and characterization of the diamido-arsine ligand [NAsN]Li-2(THF) (1) (where NAsN = PhAs(CH2SiMe2NPh)(2)), the protonated ligand precursor [NAsN]H-2 (2), and its coordination chemistry with tantalum is presented. The complex [NAsN]TaMe3 (3) can be synthesized from 1 and TaMe3Cl2. Hydrogenation of 3 did not produce the desired tetrahydride ([NAsN]Ta)(2)(mu-H)(4), instead, activation of Ta-N bonds in the complex produced a modest yield of the free ligand 2. In an attempt to understand the unusual reactivity of 3, a density functional theory investigation of the model complexes {\textquoteright}NAsN{\textquoteright}Li-2(OMe2)(2) (4) and {\textquoteright}NAsN{\textquoteright}TaMe3 (5) (where {\textquoteright}NAsN{\textquoteright} = MeAs(CH2SiH2NMe)(2)) and their phosphine analogs {\textquoteright}NPN{\textquoteright}Li-2(OMe2) (7), {\textquoteright}NPN{\textquoteright}TaMe3 (8), and a related niobium complex {\textquoteright}NPN{\textquoteright}NbMe3 (10) (where {\textquoteright}NPN{\textquoteright} = MeP(CH2SiH2NMe)(2)) was undertaken. The difference between the chemistry supported by the As and P ligands originates from the poor binding of As to Ta in these systems and is likely due to a mismatch of the soft As donor and the hard Ta(V) metal centre.},
	isbn = {0008-4042},
	url = {<Go to ISI>://000244345900011},
	author = {Carmichael, C. D. and Shaver, M. P. and Fryzuk,Michael D.}
}
