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The C-F small middle dot small middle dot small middle dotH-C "Anti-Hydrogen Bond" in the Gas Phase: Microwave
Caminati1, Melandri, Moreschini
1Dipartimento di Chimica "G. Ciamician" dell'Università, Via Selmi 2, I-40126 Bologna (Italy).
Abstract:
A shortening of the C-H bond lengths and a blue shift of the C-H stretching frequencies for the C-F small middle dot small middle dot small middle dotH-C groups indicates that anti-hydrogen bonds are present the difluoromethane dimer. The most stable conformer has three such interactions (shown schematically).
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