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Pregled bibliografske jedinice broj: 542681

Časopis

Autori: Randić, Milan; Novič, Marjana; Vračko, Marjan; Vukičević, Damir; Plavšić, Dejan
Naslov: π-electron currents in polycyclic conjugated hydrocarbons : Coronene and its isomers having five and seven member rings
( π-electron currents in polycyclic conjugated hydrocarbons : Coronene and its isomers having five and seven member rings )
Izvornik: International journal of quantum chemistry (0020-7608) 112 (2012), 4; 972-985
Vrsta rada: članak
Ključne riječi: polycyclic conjugate hydrocarbons; conjugated circuits; ring currents; aromaticity
( polycyclic conjugate hydrocarbons; conjugated circuits; ring currents; aromaticity )
Sažetak:
We have outlined novel graph theoretical model for computing π-electron currents in π-electron polycyclic conjugated hydrocarbons. We start with Kekulé valence structures of a polycyclic conjugated hydrocarbon and their conjugated circuits. To each 4n+2 conjugated circuits we assign counter clockwise current i and to each 4n conjugated circuit we assign clockwise current i. By adding the contributions from all conjugated circuits in a single Kekulé valence structure one obtains π-electron current pattern for the particular Kekulé valence structure. By adding the conjugated circuit currents in all Kekulé valence structure one obtains the pattern of π-electron currents for considered molecule. We report here π-electron current patters for coronene and 17 its isomers, which have been recently considered by Balaban et al., obtained by replacing one or more pairs of peripheral benzene rings with five and seven member rings. Our results are compared with their reported π-electron current density patters computed by ab initio molecular orbital (MO) computations and satisfactory parallelism is found between two so disparate approaches.
Projekt / tema: 177-0000000-0884, 098-0982929-2917
Izvorni jezik: eng
Rad je indeksiran u
bazama podataka:
Current Contents Connect (CCC)
Scopus
SCI-EXP, SSCI i/ili A&HCI
Science Citation Index Expanded (SCI-EXP) (sastavni dio Web of Science Core Collectiona)
Kategorija: Znanstveni
Znanstvena područja:
Matematika,Kemija
URL Internet adrese: http://onlinelibrary.wiley.com/doi/10.1002/qua.23081/abstract
Broj citata:
Altmetric:
DOI: 10.1002/qua.23081
URL cjelovitog teksta:
Google Scholar: π-electron currents in polycyclic conjugated hydrocarbons : Coronene and its isomers having five and seven member rings
Upisao u CROSBI: dplavsic@irb.hr (dplavsic@irb.hr), 17. Stu. 2011. u 10:14 sati



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