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Frontispiece: Isolation and Ambident Reactivity of a Chlorogermylenoid
Author(s) -
Suzuki Yuko,
Sasamori Takahiro,
Guo JingDong,
Nagase Shigeru,
Tokitoh Norihiro
Publication year - 2016
Publication title -
chemistry – a european journal
Language(s) - English
Resource type - Reports
SCImago Journal Rank - 1.687
H-Index - 242
eISSN - 1521-3765
pISSN - 0947-6539
DOI - 10.1002/chem.201683961
Subject(s) - reactivity (psychology) , germanium , dissociation (chemistry) , chemistry , crystallography , toluene , bond dissociation energy , ligand (biochemistry) , ion , crystal structure , medicinal chemistry , inorganic chemistry , stereochemistry , organic chemistry , medicine , alternative medicine , pathology , biochemistry , receptor , silicon
Ambident Germanium Complexes In their Communication on page 13784 ff., T. Sasamori et al. show the synthesis of a chloro–ferrocenyl germanium complex by treatment of 2,5‐di(3,5‐ tert ‐butylphenyl)‐1‐lithioferrocene with GeCl 2 ⋅dioxane. This complex exhibited an ambident reactivity; it displayed a behavior characteristic for a dichlorogermylene anion in THF, while it exhibited the typical reactivity of a chlorogermylene in toluene. The key to the successful isolation of this germylenoid is the presence of the bulky ferrocenyl ligand with 3,5‐ tert ‐butylphenyl groups that allow effective CH−Cl interactions and, thus, raise the Ge−Cl bond dissociation energy. Single‐crystal X‐ray diffraction of the chlorogermylenoid, recrystallized in THF, revealed a separated‐ion‐pair structure in the solid state.