2J(29Si-O-29Si) coupling constants in oligosiloxanes.
The absolute values of spin-spin couplings between (29)Si nuclei in siloxanes, (2)J((29)Si-O-(29)Si), were determined. The couplings are small and cover a narrow range of values (0-5 Hz). The coupling constants depend on the branching or on the number of electronegative substituents on the Si-O-Si moiety.
Kurfürst
Milan
M
Institute of Chemical Process Fundamentals of the ASCR, v.v.i, 16502 Prague 6, Czech Republic.
Schraml
Jan
J