Effects of structure and number of heteroatom on the π-π stacking interactions of benzene with N-substituted coronenes: A theoretical study
محل انتشار: فصلنامه ارتباطات شیمی ایران، دوره: 2، شماره: 3
سال انتشار: 1393
نوع سند: مقاله ژورنالی
زبان: انگلیسی
مشاهده: 463
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شناسه ملی سند علمی:
JR_ICC-2-3_003
تاریخ نمایه سازی: 18 تیر 1394
چکیده مقاله:
Stability of the π-π stacking interactions in the Ben||N-substituted-coronene complexes was studied using the computational quantum chemistry methods (where Ben is benzene and || denotes π-π stacking interaction, and N-substituted-coronene is coronene molecule which substituted with different number of N atoms). The results reveal simultaneous effects of structure and number of Heteroatom on the π-π stacking interactions with N-substituted-coronenes. Changing the number of Heteroatom N in N-substituted-coronenes and substitution of 8N-coronene with electron- withdrawing or electron-donating X groups alter the electron charge density at rings of this molecule and leads to different binding energies in the Ben||X-8N-substituted-coronene complexes. Results indicate that electron-withdrawing groups lead to higher π–π stacking binding energies compared to electron-donating ones in the Ben||X-8N-substituted-coronene complexes.
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نویسندگان
Pouya Karimi
Department of Chemistry, Faculty of Science, University of Zabol, P.O. Box ۹۸۶۱۳-۳۵۸۵۶, Zabol, Iran
Mahmoud Sanchooli
Department of Chemistry, Faculty of Science, University of Zabol, P.O. Box ۹۸۶۱۳-۳۵۸۵۶, Zabol, Iran