Premium
Synthesis and structures of M(Me 3 SiNCHNSiMe 3 ) 3 (M = Al, Ga) via reactions of M‐hydrides with Me 3 SiNCNSiMe 3
Author(s) -
Ritter Cole,
Chizmeshya Andrew V. G.,
Gray T. L.,
Kouvetakis J.
Publication year - 2007
Publication title -
applied organometallic chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.53
H-Index - 71
eISSN - 1099-0739
pISSN - 0268-2605
DOI - 10.1002/aoc.1277
Subject(s) - chemistry , hexacoordinate , denticity , carbodiimide , steric effects , crystallography , ligand (biochemistry) , crystal structure , yield (engineering) , coordination complex , homoleptic , stereochemistry , metal , monomer , organic chemistry , biochemistry , receptor , materials science , silicon , metallurgy , polymer
Reactions of LiAlH 4 and LiGaH 4 with Me 3 SiNCNSiMe 3 yield, respectively, the monomeric hexacoordinate Al(Me 3 SiNCHNSiMe 3 ) 3 (1) and Ga(Me 3 SiNCHNSiMe 3 ) 3 , (2) metal amidinate compounds. A unique feature of the work is the creation of the previously unknown bidentate [Me 3 SiNCHNSiMe 3 ] anion ligand which shows the propensity to fully encapsulate the Al and Ga metal centers despite potential steric crowding associated with the six‐fold coordination. Compound 1 was also obtained by the reaction of (Me 3 N)AlH 3 with Me 3 SiNCNSiMe 3 via displacement of NMe 3 followed by reduction of the carbodiimide group. The structural properties of 1 and 2 derived from single crystal X‐ray diffraction are elucidated and compared with various coordination analogs. Copyright © 2007 John Wiley & Sons, Ltd.