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@article{196795, author = {Pinkas, Jiří and Verkade, J.G.}, article_location = {Spojené státy americké}, article_number = {12}, keywords = {ALUMINUM ALKOXIDES; NMR-SPECTROSCOPY}, language = {eng}, issn = {0020-1669}, journal = {Inorg. Chem.}, title = {Alumatrane, Al(OCH2CH2)3N: A Reinvestigation of Its Oligomeric Behavior.}, volume = {32}, year = {1993} }
TY - JOUR ID - 196795 AU - Pinkas, Jiří - Verkade, J.G. PY - 1993 TI - Alumatrane, Al(OCH2CH2)3N: A Reinvestigation of Its Oligomeric Behavior. JF - Inorg. Chem. VL - 32 IS - 12 SP - 2711 EP - 2711 PB - American Chemical Society, Washington DC SN - 00201669 KW - ALUMINUM ALKOXIDES KW - NMR-SPECTROSCOPY N2 - In various literature reports the behavior of the title compound 1 has been described as dimeric in the gas phase; monomeric, hexameric, and octameric in solution; and tetrameric (by X-ray crystallography) in the solid state. Herein we present mass spectral evidence for the presence of both 1(2) and 1(4) in the gas phase. Al-27 NMR evidence is put forth for the tetramer 1(4) as the only detectable oligomer in solution, wherein 1(4) contains one hexacoordinate and three pentacoordinate aluminums. H-1, H-1 DQF COSY experiments confirm the presence Of 1(4) in solution and VT C-13 NMR spectral studies reveal the occurrence of an interesting dynamic behavior of 1(4) in which the three pentacoordinate alumatranes rotate around their pseudo-3-fold axes while remaining fluxionally oxygen-bridged to the central cage containing the hexacoordinated aluminum. Solid-state Al-27 and C-13 NMR and Al-2p, N1a, and O1a XPS evidence has also been gathered that is consistent with the tetrameric structure of solid alumatrane. ER -
PINKAS, Jiří a J.G. VERKADE. Alumatrane, Al(OCH2CH2)3N: A Reinvestigation of Its Oligomeric Behavior. \textit{Inorg. Chem.}. Spojené státy americké: American Chemical Society, Washington DC, 1993, roč.~32, č.~12, s.~2711-2716. ISSN~0020-1669.
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