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Synthesis and properties of some gallium amidine complexes [GaXyL3-y] [X = Me, Et or Cl; L = RNCR′NR (R, R′ = H, alkyl or aryl); y = 0-2]. Crystal structures of [GaMe2(PhNCPhNPh)] and [GaMe-(PhNCPhNPh)2]

DOI: 10.1039/DT9960000431

Source and publish data:

Journal of the Chemical Society, Dalton Transactions p. 431 - 437 (1996)

Update date:2022-08-04

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Authors:

Barker, JamesBarker, James

Blacker, Nicholas C.Blacker, Nicholas C.

Phillips, Paul R.Phillips, Paul R.

Alcock, Nathaniel W.Alcock, Nathaniel W.

Errington, WilliamErrington, William

Wallbridge, Malcolm G. H.Wallbridge, Malcolm G. H.

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Article abstract of DOI:10.1039/DT9960000431

The amidinato compounds [GaMe2L] [L = RNCR′NR (R, R′ = H, alkyl oraryl)], [GaMe(PhNCPhNPh)2], [GaEt(PhNCMeNPh)2] and [Ga(PhNCRNPh)3] (R = Me or Ph) have been isolated from the reaction of the appropriate gallium trialkyl with 1, 2 and 3 mol of amidine RNCR′N(H)R, respectively. The chloro derivatives [GaCl3{RNCR′N(H)R}] (R = Ph or p-ClC6H4; R′ = Me) and [GaCl2(p-ClC6H4NCMeNC6H 4Cl-p)] have also been prepared. The compounds have been fully characterised, and mass spectrometric data indicate that the volatile dimethylgallium derivatives exist as either monomers or dimers in the gas phase. X-Ray crystallographic studies on [GaMe2(PhNCPhNPh)] and [GaMe(PhNCPhNPh)2] revealed monomeric structures and the presence of chelating amidinate ligands, with distorted tetrahedral and trigonal-bipyramidal co-ordination respectively at the metal centres. Cleavage of the Ga-Me bond occurs on photolysis in the presence of a spin-trapping agent, and thermal decomposition of the solids leads to the formation of gallium nitride.

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Products guided by the article

Product name:GaCl2(1+)*C6H4ClNC(CH3)NC6H4Cl(1-) = [GaCl2][C6H4ClNC(CH3)NC6H4Cl]

Cas No:175406-07-2

175406-07-2

R&D Labs maybe for 175406-07-2

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