Premium
Structure and Reactivity of the Orthocarbonic and Orthosilicic Acid Esters of Pyrocatechol
Author(s) -
Meyer Heinrich,
Nagorsen Günter
Publication year - 1979
Publication title -
angewandte chemie international edition in english
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 0570-0833
DOI - 10.1002/anie.197905511
Subject(s) - tetrahedron , planar , silicon , reactivity (psychology) , atom (system on chip) , carbon atom , chemistry , crystallography , stereochemistry , organic chemistry , engineering , ring (chemistry) , computer science , medicine , computer graphics (images) , alternative medicine , pathology , embedded system
The first compound found to contain planar tetracoordinated silicon is the orthosilicic ester (2) . In contrast, the bondilg geometry of the central atom of the analogous orthocarbonic ester deviates only slightly from a tetrahedron. Quantum mechanical studies [ e.g . on the model compound (3) ] showed that planar tetracoordination is easier for silicon than for carbon. The ability of silicon to engage in sixfold coordination [type (4) ] even makes such planar structures easier to achieve than the tertahedral structure.