IR-Spectroscopic and X-ray-Structural Study of Vinyl-Type Carbocations in Their Carborane Salts.

ABSTRACT: The butylene carbocation in its salts with anions CHB₁₁F₁₁ ^- and CHB₁₁Cl₁₁ ^- forms isomers CH₂=C⁺-CH₂-CH₃ (I) and CH₃-C⁺=CH-CH₃ (II), which were characterized here by infrared (IR) spectroscopy and X-ray diffraction analysis. The strongest influence on the structure of the cations is exerted by geometric ordering of their anionic environment. In the crystalline phase, the cations uniformly interact with neighboring anions, and the C=C bond is located in the middle part of the cations forming a -CH=C⁺- moiety with the highest positive charge on it and the lowest νC=C frequency, at 1490 cm^-1. In the amorphous phase

SUBMITTER: Stoyanov ES 

PROVIDER: S-EPMC9366973 | biostudies-literature | 2022 Aug

REPOSITORIES: biostudies-literature