[EN] LITHIUM PRECURSORS FOR DEPOSITION OF LITHIUM-CONTAINING LAYERS, ISLETS OR CLUSTERS [FR] PRÉCURSEURS DE LITHIUM POUR LE DÉPÔT DE COUCHES, D'ÎLOTS OU D'AGRÉGATS CONTENANT DU LITHIUM
Mono- and digallane complexes of a tridentate amido-diamine ligand
作者:Bing Luo、Benjamin E. Kucera、Wayne L. Gladfelter
DOI:10.1039/b503705k
日期:——
Bis(2-dimethylaminoethyl)amido gallane, H2GaN(CH2CH2NMe2)2, that melts at 27 degrees C and remains stable upon heating at 55 degrees C for two days, was synthesized either from the reaction of the quinuclidine adduct of monochlorogallane with the lithium salt of the corresponding amine, or from the reaction of trimethylaminegallane and the amine; the latter affords an unusual co-product with both
Syntheses and X-ray crystal structures of zinc complexes with an amido-diamine ligand
作者:Bing Luo、Benjamin E. Kucera、Wayne L. Gladfelter
DOI:10.1016/j.poly.2005.06.041
日期:2006.1
The synthesis and characterization of complexes with a tridentate amido-diamine ligand N(CH2CH2NMe2)(2), [ClZnN(CH2CH2NMe2)(2)](2) (1), [EtZnN(CH(2)CH(2)NMel)(2)](2) (2), JZn[N(CH(2)CH2NMe(2))(2)](2)}(2) (3) and [(Bu2NZnN)-Bu-t(CH2CH2NMe2)(2)](2) (4), are described. Compounds 1 (57% yield) and 2 (49% yield) were obtained from the reactions of ZnCl2 with 1 equiv. of LiN(CH2CH2NMe2)(2) and ZnEt2 with excess HN(CH2CH2NMe2)(2), respectively. Compounds 3 (52% yield) and 4 (75% yield) were isolated from the reactions of [Zn((NBu2)-Bu-i)(2)](2) With HN(CH2CH2NMe2)(2) in 1:4 and 1:2 molar ratios, respectively. Mass spectral data and NMR analyses suggested that all four compounds were dimeric. The solid-state structures of compounds 2 and 3 were determined via X-ray crystallography. Both compounds were centrosymmetric containing a four-membered Zn2N2 ring with bridging amido ligands. In both structures, one NMe2 group in each bridging ligand bonded to a Zn center forming a five-membered ring. The ethyl groups in 2 and the second -N(CH2CH2NMe2)(2) ligand in 3 occupied the terminal positions. (c) 2005 Elsevier Ltd. All rights reserved.