Repozytorium

Blue or red ΔνXH complexation shift in X–H···CO2 hydrogen-bonded complexes?

Autorzy

Roman Szostak

Rok wydania

2011

Czasopismo

Chemical Physics Letters

Numer woluminu

516

Strony

166-170

DOI

10.1016/j.cplett.2011.09.082

Kolekcja

Naukowa

Język

Angielski

Typ publikacji

Artykuł

Streszczenie

The position of the ν(XH) stretching band for more than 100 proton donors (X = O, N, C, S, Se, P, Si, B, F, Cl, Br) complexed with CO2 was calculated at the MP2/6-311++G(d,p) level. Complexation energies and natural bond orbital characteristics were also determined. These calculations revealed that the direction of the ν(XH) band shift was related to the charge born by the hydrogen atom of the proton donor. X–H⋯OCO blue-shifting hydrogen bonds were found for compounds characterised by a small charge, while red-shifting was observed for those compounds with a high positive charge on the hydrogen atom.

Adres publiczny

https://doi.org/10.1016/j.cplett.2011.09.082

Strona internetowa wydawcy

http://www.elsevier.com

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