Další formáty:
BibTeX
LaTeX
RIS
@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.
|