MOLECULAR-STRUCTURES AND REACTIVITIES OF DIGERMIRANES AND AZADIGERMIRIDINES

Reaction of tetrakis(2,6-diethylphenyl)digermene (2) with diazomethane produces 1,1,2,2-tetrakis(2,6-diethylphenyl)digermirane (3). The photolysis of 3 with a high-pressure mercury lamp yields germene 13 and germylene 14. The digermirane 3 reacts with pyridine N-oxide, sulfur, and selenium to yield the insertion products of O, S, and Se into the germanium-germanium bond. 2,2,3,3-Tetrakis(2,6-diethylphenyl)-l-phenylazadigermiridine (5) is also prepared by the reaction of 2 with phenyl azide. The structures of the digermirane 3 and the azadigermiridine 5 have been determined by X-ray crystal analyses. Both 3 and 5 have relatively short germanium‒germanium bond distances of 2.379 (1) Å and nearly planar arrangements of CAr, CAR, and Ge atoms around each germanium. © 1990, American Chemical Society. All rights reserved.