Premium
Synthesis of Unsupported Primary Phosphido Complexes of Aluminum(III)
Author(s) -
Phan Nathan A.,
Sherbow Tobias J.,
Fettinger James C.,
Berben Louise A.
Publication year - 2021
Publication title -
zeitschrift für anorganische und allgemeine chemie
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.354
H-Index - 66
eISSN - 1521-3749
pISSN - 0044-2313
DOI - 10.1002/zaac.202100199
Subject(s) - ligand (biochemistry) , chemistry , crystallography , pincer movement , molecule , halide , aluminium , pincer ligand , inorganic chemistry , biochemistry , receptor , organic chemistry , catalysis
Primary phosphido complexes of aluminum(III) are rare, particularly those that are not supported by interactions with Lewis bases or stabilizing cations. Here we report two new examples of unsupported primary phosphido complexes of Al(III). The ancillary ligand on Al is a pincer ligand, diiminopyridine (denoted as I 2 P). Solid‐state structures show distorted tetrahedral geometry about Al and single bond character in the Al−P bond. Near infra‐red spectra display low energy absorption bands near 1050 nm that are consistent with pincer ligand – Al charge transfer transitions and metalloaromatic character in the “(I 2 P 2− )Al” fragment of the molecules. The phosphido ligands lie out of the I 2 P ligand plane by up to 15° and this is consistent with our previous reports where π‐donor halide ligands occupy the fourth coordination site on Al.