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Lithium Bis(di‐ tert ‐butylfluorosilyl)amide as Contact Ion Pair with Linear SiN ⊖ Si Unit and as Ion Pair without Li ⊕ ‐Anion Contact
Author(s) -
Pieper Ursula,
Walter Simone,
Klingebiel Uwe,
Stalke Dietmar
Publication year - 1990
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.199002091
Subject(s) - ion , lithium (medication) , amide , chemistry , crystallography , stereochemistry , organic chemistry , medicine , endocrinology
What effect do donor solvents have on the title compound? The THF compound is present as contact ion pair 1 . However, the stronger Lewis base [12]crown‐4 allows, for the first time in such a system, the formation of free ions, 2 .