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[ n BuLi · LiO t Bu] 4 , Solid‐State Structure of an n ‐Butyllithium–Lithium tert ‐Butoxide Complex
Author(s) -
Marsch Michael,
Harms Klaus,
Lochmann Lubomir,
Boche Gernot
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.199003081
Subject(s) - tetramer , chemistry , lithium (medication) , crystal structure , atom (system on chip) , crystallography , lithium atom , solid state , stereochemistry , ion , medicine , biochemistry , organic chemistry , ionization , computer science , embedded system , enzyme , endocrinology
Strikingly short Li–β‐C(Bu) and Li–β‐H distances (ca. 235 and 205 pm) characterize the crystal structure of the tetramer [ n BuLiLiO t Bu] 4 . Half of the Li atoms are threefold coordinated (to two O atoms and one α‐C atom), the other half fourfold coordinated (to one O atom, two α‐C atoms, and one α‐C atom). On the basis of the structure of this tetramer one can speculate on the structure of the complex superbases (“Lochmann bases”) [RLi · MOR′] (M = Na, K, Rb, Cs).