Journal of Molecular Structure, volume 1231, pages 129910

A matrix isolation and Ab initio study on C2H6…HCN complex: An unusual example of hydrogen bonding

Publication typeJournal Article
Publication date2021-05-01
Quartile SCImago
Q2
Quartile WOS
Q2
Impact factor3.8
ISSN00222860
Organic Chemistry
Inorganic Chemistry
Spectroscopy
Analytical Chemistry
Abstract
Abstract Hydrogen bonding between saturated alkanes and HX (X is an electronegative fragment) represents a unique type of interaction of this kind. In this work we report a first experimental and ab initio study on HCN…C2H6 complex using FTIR matrix isolation spectroscopy and MP2/CBS calculations. According to theoretical results, three forms of HCN…C2H6 are possible: two with C(HCN)…C1(C2H6) and H(HCN)…C2(C2H6); C(HCN)…C1(C2H6) and N(HCN)…C2(C2H6) contacts and hydrogen-bonded H(HCN)…C(C2H6) axial symmetry structure (the interaction energies are 0.85, 0.79 and 0.77 kcal/mol respectively). Nevertheless, only the last structure is stabilized upon experimental conditions. The hydrogen-bonded complex is spectroscopically characterized by blue shifts of HCN bending (+9.4 cm−1) and CH3 rocking (+9.0 and +11.3 cm−1) and red shifts of H−CN stretching (−24.9 and −20.1 cm−1) and CH3 symmetry stretching (−4.7 cm-1) vibrations. The experiment with deuterated HCN proves this assignment. The obtained results are in good agreement with the previous rotational spectroscopy study.

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Sosulin I. S. et al. A matrix isolation and Ab initio study on C2H6…HCN complex: An unusual example of hydrogen bonding // Journal of Molecular Structure. 2021. Vol. 1231. p. 129910.
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Sosulin I. S., Lukianova I. A., Drabkin V. D., Volosatova A. D., Kameneva S. V., Volosatova A. D., Kameneva S. V. A matrix isolation and Ab initio study on C2H6…HCN complex: An unusual example of hydrogen bonding // Journal of Molecular Structure. 2021. Vol. 1231. p. 129910.
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TY - JOUR
DO - 10.1016/j.molstruc.2021.129910
UR - https://doi.org/10.1016%2Fj.molstruc.2021.129910
TI - A matrix isolation and Ab initio study on C2H6…HCN complex: An unusual example of hydrogen bonding
T2 - Journal of Molecular Structure
AU - Sosulin, Ilya S
AU - Lukianova, Irina A
AU - Drabkin, Vladimir D
AU - Volosatova, Anastasia D
AU - Kameneva, Svetlana V
AU - Volosatova, Anastasia D
AU - Kameneva, Svetlana V
PY - 2021
DA - 2021/05/01 00:00:00
PB - Elsevier
SP - 129910
VL - 1231
SN - 0022-2860
ER -
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@article{2021_Sosulin,
author = {Ilya S Sosulin and Irina A Lukianova and Vladimir D Drabkin and Anastasia D Volosatova and Svetlana V Kameneva and Anastasia D Volosatova and Svetlana V Kameneva},
title = {A matrix isolation and Ab initio study on C2H6…HCN complex: An unusual example of hydrogen bonding},
journal = {Journal of Molecular Structure},
year = {2021},
volume = {1231},
publisher = {Elsevier},
month = {may},
url = {https://doi.org/10.1016%2Fj.molstruc.2021.129910},
pages = {129910},
doi = {10.1016/j.molstruc.2021.129910}
}
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