Evidence for CH Hydrogen Bonding in Salts of  tert ‐Butyl Cation | Zendy

Stoyanov Evgenii S. | Zendy; Stoyanova Irina V. | Zendy; Tham Fook S. | Zendy; Reed Christopher A | Zendy

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Evidence for CH Hydrogen Bonding in Salts of tert ‐Butyl Cation

Author(s) -

Stoyanov Evgenii S.,

Stoyanova Irina V.,

Tham Fook S.,

Reed Christopher A

Publication year - 2012

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.201203958

Subject(s) - counterion , delocalized electron , ion , hydrogen bond , chemistry , infrared spectroscopy , hydrogen , infrared , crystallography , medicinal chemistry , inorganic chemistry , computational chemistry , molecule , organic chemistry , physics , optics

Environmentally sensitive : A combination of CH⋅⋅⋅⋅anion hydrogen bonding and hyperconjugative charge delocalization explains the sensitivity of the IR spectrum of the tert ‐butyl cation to its anion (see high‐resolution X‐ray structure with a CHB 11 Cl 11 − counterion). The νCH vibration of the cation scales linearly with the basicity of carborane anions on the νNH scale. The same also holds for the C 6 H 7 + benzenium ion.

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