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Bulletin of the Korean Chemical Society (BKCS)

ISSN 0253-2964(Print)
ISSN 1229-5949(Online)
Volume 34, Number 6
BKCSDE 34(6)
June 20, 2013 

Theoretical Study on Interactions between N-Butylpyridinium Nitrate and Thiophenic Compounds
Renqing Lü*, Dong Liu, Shutao Wang, Yukun Lu
Ionic liquid, Density functional theory, Thiophene, Benzothiophene, Dibenzothiophene
By using density functional theory calculations, we have performed a systemic study on the electronic structures and topological properties of interactions between N-butylpyridinium nitrate ([BPY]+[NO3]−) and thiophene (TS), benzothiophene (BT), dibenzothiophene (DBT), naphthalene (NAP). The most stable structure of [BPY]+[NO3]− ion pair indicates that hydrogen bonding interactions between oxygen atoms on [NO3]− anion and C2-H2 on pyridinium ring play a dominating role in the formation of ion pair. The occurrence of hydrogen bonding, π···H-C, and π···π interactions between [BPY]+[NO3]− and TS, BT, DBT, NAP has been corroborated at the molecular level. But hydrogen bonding and π···π interactions between [BPY]+[NO3]− and NAP are weak in terms of structural properties and NBO, AIM analyses. DBT is prior to adsorption on N-butylpyridinium nitrate ionic liquid.
1814 - 1822
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