Molecular Structural Properties of [n]-Annulene (n = 8, 10, 12, 14) and its Boron Nitride Derivatives: Analysis of NMR, NBO, ELF and PDI
Yazarlar (2)
Prof. Dr. Majıd MONAJJEMI Islamic Azad University, Central Tehran Branch, İran
Dr. Öğr. Üyesi Fatemeh MOLLAAMIN Islamic Azad University, Central Tehran Branch, İran
Makale Türü Özgün Makale (SCOPUS dergilerinde yayınlanan tam makale)
Dergi Adı Journal of Structural Chemistry
Dergi ISSN 0022-4766 Wos Dergi Scopus Dergi
Dergi Tarandığı Indeksler
Makale Dili İngilizce Basım Tarihi 02-2020
Cilt / Sayı / Sayfa 61 / 2 / 207–224 DOI 10.1134/S0022476620020055
Makale Linki http://www.scopus.com/inward/record.url?eid=2-s2.0-85087974563&partnerID=MN8TOARS
UAK Araştırma Alanları
Fen Bilimleri ve Matematik
Özet
Due to the importance of structural properties of annulene in physical and inorganic chemistry, the trajectory of the NBO to MO evolution can be written as natural atomic orbitals (NAO) → natural hybrid orbital (NHO) → natural bond orbital (NBO) → natural semi-localized MO (NLMO) → MO. The electron density distribution in this [n]-annulene series (both ions and molecules) (n = 8, 10, 12, 14) is investigated by NMR, NBO, ELF, FLU, and PDI analyses. The (4n+2)π and also 4nπ systems (Hückel’s rule) on variants of those compounds via the localized orbital localization (LOL) and electron localized function (ELF) are discussed, and a diatropic ring current (aromatic) is also distinguished for some other paratropic currents (anti-aromatic). The NHO direction and bond bending deviations from the line of nuclear centers are exhibited for understanding the situation of π and σ orbitals. In this work, for each NAO function …
Anahtar Kelimeler
annulene structures | aromaticity | current density induced | diatropic | ELF | LOL | paratropic