Premium
Synthesis and Dynamic Behavior of the Heptafluorotrisilacyclohexane Anion: A New Fluxional Silicate with Rapid Intramolecular Exchange of Fluoride Ligand
Author(s) -
Brondani Dalci,
Carré Francis H.,
Corriu Robert J. P.,
Moreau Joel J. E.,
Man Michel Wong Chi
Publication year - 1996
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.199603241
Subject(s) - fluoride , intramolecular force , ion , silicate , chemistry , ligand (biochemistry) , ion exchange , signal (programming language) , crystallography , inorganic chemistry , stereochemistry , organic chemistry , computer science , receptor , biochemistry , programming language
Chair inversions and FSi migrations can explain why in solution the trisilacyclohexane anion 1 provides only one 19 F and one 29 Si NMR signal. The ion shows fluxional behavior in the crystal as well, as is confirmed by the 29 Si CP/MAS NMR spectrum at 298 K, which contains only one signal.