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How Can a Carbon Atom Be Covalently Bound to Five Ligands? The Case of Si 2 (CH 3 ) 7 +
Author(s) -
Dávalos Juan Z.,
Herrero Rebeca,
Abboud JoséLuis M.,
Mó Otilia,
Yáñez Manuel
Publication year - 2007
Publication title -
angewandte chemie international edition
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 1433-7851
DOI - 10.1002/anie.200601164
Subject(s) - fourier transform ion cyclotron resonance , chemistry , ion , planar , covalent bond , mass spectrometry , crystallography , fourier transform , physics , organic chemistry , computer graphics (images) , computer science , chromatography , quantum mechanics
The beauty of symmetry : The Si 2 (CH 3 ) 7 + ion can be observed under the low pressures used in Fourier transform ion cyclotron resonance (FT‐ICR) mass spectrometry. The optimized geometry of the ion, as determined from theoretical calculations and FT‐ICR experimental results, reveals a C 3 h ‐symmetric structure, in which a planar CH 3 group is symmetrically bonded to two eclipsed Si(CH 3 ) 3 moieties (see picture; Si blue, C dark gray, H pale gray).