Stibine adduct

Wells et al. characterized group 13-stibine adducts by single crystal X-ray structure analyses first in 1997 [35]. The solid state structures of three borane-stibine adducts of the type X3B—Sb(Tms)3 (X = Cl 6, Br 7, I 8), obtained by reaction of boron trihalides BX3 and Sb(Tms)3 in n-pentane, were determined. 

In contrast to these trends observed for the stibine adducts, the H-NMR spectra of the bismuthine adducts R3M—BiR without exception show almost the same chemical shifts due to the organic groups as the starting trialkylalanes, -gallanes and -bismuthines, again indicating very weak acid-base interactions in solution. 

However, in contrast to the chloroalane-stibine adduct, the phosphine and arsine adducts could be converted into the corresponding heterocycles by thermal activation (Scheme 10) [73]. 

Selected Bonding Parameters [pm, °] of Alane Stibine Adducts R3A1 <- SbR3... 

In contrast to these trends observed for borane-stibine adducts, the M-Sb bond lengths of alane-, gallane- and indane-stibine adducts are significantly elongated compared to the sum of the covalent radii (J>cov(AlSb) 266 J>cov(GaSb) 267 J>cov(InSb) 285 pm),48 as is expected for dative bonds. 

Borane stibine adducts, 240-241 Borazine (B3N3He), 226, 227 BP86 (gradient corrected density function), 178... 

Gallane stibine adducts, 240, 241-242 Gallium compounds, 294-296 see also Gallanes GaN GaSb GaN films, precursors for, 257-258 GaSb films, 298, 299, 303-306 Geometric parameters... 

Stibinoalanes, 262-264, 266-268, 269 for AlSb film deposition, 301-303 see also Alane stibine adducts Stibinogallanes, 261-262, 269-272, 294-295 in film deposition, 303 Stibinoindanes, 261-262, 264, 272, 273 in film deposition, 303-304 Structure... 

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