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Dimeric and Trimeric Aminoalanes with Inverse Bridging Functions
Author(s) -
Klein Christiane,
Nöth Heinrich,
Tacke Matthias,
Thomann Martina
Publication year - 1993
Publication title -
angewandte chemie international edition in english
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 0570-0833
DOI - 10.1002/anie.199308861
Subject(s) - bridging (networking) , monomer , chemistry , crystallography , polymer , organic chemistry , computer science , computer network
Hydrogen atoms and not the amino groups assume the bridging function in the aminoalanes tmpAlH 2 and (tmp) 2 A1H 1 (tmpH = 2,2,6,6‐tetramethylpiperidine). Whereas tmpA1H 2 is trimeric and has cis tmp groups according to IR data, 1 (structure shown on the right) is dimeric. At 50 °C under vacuum 1 is transformed into monomeric (tmp) 2 A1H, which is stable in an argon matrix.