Germanium-Atom

The central germanium atom has one unshared pair and two bonds. 

Matrix Infrared Spectroscopy of Intermediates with Low Coordinated Carbon, Silicon and Germanium Atoms... 

Unstable compounds with double-bonded silicon and germanium atoms... 

Unstable compounds with double-bonded silicon and germanium atoms (silenes, silanones, germanones, germathiones)... 

Compounds containing double-bonded silicon and germanium atoms are the nearest analogues of olefins, ketones and thioketones. However, most of them are very unstable and highly reactive species. 

Which orbitals are filled, and which set of orbitals is partially filled, in a germanium atom ... 

The structures of five germanimines have been examined by X-ray crystallography (entries 6-9, Table I). In each case, the germanium atom... 

The molecular structures of germaphosphenes (entries 10 and 11, Table I) show much the same characteristics as germanimines.19,20 They are planar about the germanium atom and the Ge=P double bond is about 8% shorter than its single-bond analog. The angle at phosphorus is smaller... 

B. Double Bond Systems Containing a Germanium Atom. 140... 

The isotropic germanium hyperfine coupling appears to be smaller for the triaryl radicals as compared with the trialkyl radicals. Since the hyperfine coupling to the germanium atom should increase markedly with increased s-character of the orbital containing the unpaired electron, this observation would imply that the aryl-substituted radicals are somewhat more planar than their alkyl-substituted analogues. 

One doubly bidentate Lewis base 2,2 -bipyrimidine is coordinated with one germanium atom, while in the case of the analogous lead compound coordination takes place with two lead atoms. 

After partial deary lation of the product obtained, using HBr, stereogenic germanium atoms are generated giving the d, l and meso forms of 1,2-diphenyl-1,2-dibromo-digermane, 102. 

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