Answers are grounded in this paper and cite their sources.
A highly non-aromatic structure is exhibited by the free germacyclopentadienide ion (shown on the right) in the Li([12]crown-4)2 salt. The angle between the C4Ge plane and the GeSi bond is 100.1°. Calculations at the RHF level of theory on (C4H4GeSiH3)− accurately reproduce the observed geometrical parameters, and predict that the analogous Si and Sn derivatives would also have highly pyramidalized structures.
No takes yet. Share an insight, caveat, or question.
Freeman et al. (1995) studied this question.
Synapse has enriched 10 related papers. Consider them for comparative context: