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@article{366815,
author = {Pinkas, Jiří and Wang, T. L. and Jacobson, R. A. and Verkade, J. G.},
article_location = {Spojené státy americké},
article_number = {19},
keywords = {M = AL; PHOSPHA-WITTIG REAGENTS; MOLECULAR-STRUCTURE; CRYSTAL-STRUCTURE; AL-27-NMR},
language = {eng},
issn = {0020-1669},
journal = {Inorg. Chem.},
title = {AZAALUMINATRANES EXHIBITING UNUSUAL COORDINATION GEOMETRIES FOR ALUMINUM},
volume = {33},
year = {1994}
}
TY - JOUR
ID - 366815
AU - Pinkas, Jiří - Wang, T. L. - Jacobson, R. A. - Verkade, J. G.
PY - 1994
TI - AZAALUMINATRANES EXHIBITING UNUSUAL COORDINATION GEOMETRIES FOR ALUMINUM
JF - Inorg. Chem.
VL - 33
IS - 19
SP - 4202
EP - 4202
PB - American Chemical Society, Washington DC
SN - 00201669
KW - M = AL
KW - PHOSPHA-WITTIG REAGENTS
KW - MOLECULAR-STRUCTURE
KW - CRYSTAL-STRUCTURE
KW - AL-27-NMR
N2 - The new monomeric azaaluminatrane Al(tert-BuMe(2)SiNCH(2)CH(2))(3)N, 6, was prepared by the reaction of [Al(NMe(2))(3)](2), 7, and (tert-BuMe(2)SiNHCH(2)CH(2))(3)N, 11, and was characterized by H-1, C-13, Al-27, and Si-29 NMR, and IR spectroscopies and mass spectrometry. Its analogue Al(Me(3)SiNCH(2)CH(2))3N, 3, was structurally characterized and shown to contain a trigonal monopyramidal aluminum center. The dimeric azaaluminatrane [Al(Me(3)SiNCH(2)CH(2))(2)(HNCH2CH2)N](2), 5, possesses an unusual cis configuration of the central four-membered ring, and the aluminum atoms display a distorted trigonal bipyramidal coordination sphere. Crystal data: 3, a = 13.503(5) Angstrom, b = 10.621(4) Angstrom, c = 17.840(6) Angstrom, beta = 93.29(3)degrees, V = 2554(2) Angstrom(3), Z = 4, space group P2(1)/c, R = 5.2%; 5, a = 12.134(3) Angstrom, b = 17.049(4) Angstrom, c = 18.297(5) Angstrom, beta = 100.02(2)degrees, V = 3726(2) Angstrom 3, Z = 4, space group P2(1)/n, R = 4.6%. Al-27 NMR chemical shifts for a series of Al-N compounds with aluminum coordination numbers ranging from three to six show increased shielding with increasing coordination number.
ER -
PINKAS, Jiří, T. L. WANG, R. A. JACOBSON a J. G. VERKADE. AZAALUMINATRANES EXHIBITING UNUSUAL COORDINATION GEOMETRIES FOR ALUMINUM. \textit{Inorg. Chem.}. Spojené státy americké: American Chemical Society, Washington DC, 1994, roč.~33, č.~19, s.~4202-4210. ISSN~0020-1669.
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