posted on 2022-03-16, 15:04authored byWenjuan Wang, Manling Bao, Yuyang Dai, Xiaona Liu, Chen Liu, Chunmeng Liu, Yuanting Su, Xinping Wang
Although
pincer-type main group complexes have attracted considerable
attention owing to their unique structures and intriguing reactivity,
the isolation of pincer-type dianionic dialane(6) is still elusive.
Herein we report the first synthesis of the dianionic dialane(6) species 4 bearing novel redox-active trinitrogen pincer ligands by
reduction of the aluminum diiodide precursor 3 with excess
potassium graphite. The structure of 4 has been investigated
by spectroscopic analysis, X-ray crystallography, and density functional
theory calculations, which reveal that 4 possesses an
Al–Al single covalent bond and twisted trianionic pincer ligands.