ANALYSIS OF LOCALIZED ORBITALS IN AZABORA DERIVATIVES OF [8] ANNULENE: IN THE VIEWPOINT OF AROMATICITY AND INDUCED RING CURRENTS
Yazarlar (1)
Prof. Dr. Majıd MONAJJEMI The University Of Texas At Austin, Amerika Birleşik Devletleri
Makale Türü Özgün Makale (ESCI dergilerinde yayınlanan tam makale)
Dergi Adı Journal of Structural Chemistry
Dergi ISSN 0022-4766 Wos Dergi Scopus Dergi
Makale Dili İngilizce Basım Tarihi 10-2020
Cilt / Sayı / Sayfa 61 / 10 / 1551–1567 DOI 10.1134/S0022476620100078
Özet
The electron density distributions among a series of [8] annulene (both ions and molecules) and its azabora derivatives, including its ions [BnNnC(8–2n) H8 (n = 1, 2, 3, 4)], are investigated by NBO and NMR analyses. The (4n+2)π and 4nπ systems (Hückel′s Rule) in these compounds are discussed via the localized orbital localization and electron localized function. A diatropic ring current (aromatic) and paratropic current (antiaromatic) are distinguished. The natural hybrid orbital (NHO) direction and bond bending deviations from the line of nuclear centers are exhibited for understanding the states of π and σ orbitals. For B2 N2 C4 H82- − , B2 N2 H82- , and B2 N2 -H82- NBO calculations reveal that these structures are the dominant Lewis structures. In this work, for each NAO functions (core, valence, or Rydberg) the orbital occupancy and the orbital energies are discussed. In addition, the nucleus-independent chemical shifts and statistical nucleus independent chemical shifts confirm the amounts of aromaticity and antiaromaticity in these rings.
Anahtar Kelimeler
annulene | aromaticity | diatropic | ELF | induced current density | LOL | paratropic
BM Sürdürülebilir Kalkınma Amaçları
Atıf Sayıları
Web of Science 4
Scopus 4
ANALYSIS OF LOCALIZED ORBITALS IN AZABORA DERIVATIVES OF [8] ANNULENE: IN THE VIEWPOINT OF AROMATICITY AND INDUCED RING CURRENTS

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