I. Kalikhman et al., UNUSUAL SPIN-SPIN INTERACTIONS ACROSS THE COORDINATION BOND IN HEXACOORDINATE SILICON COMPLEXES - CRYSTAL-STRUCTURE COUPLING RELATIONSHIP, Organometallics, 16(15), 1997, pp. 3255-3257
Two-, three-, and even four-bond coupling constants are reported for t
he first time across the N-->Si coordination bond in. neutral, hexacoo
rdinate silicon chelates. Two-bond coupling constants depend criticall
y on bond angles, and three-bond couplings follow a Karplus-type corre
lation with dihedral angles obtained from X-ray crystallographic analy
ses.