Please use this identifier to cite or link to this item: http://repositorio.ufla.br/jspui/handle/1/41850
metadata.artigo.dc.title: Structural and physicochemical interpretation of GT-STAF information theory-based indices
metadata.artigo.dc.creator: Barigye, Stephen J.
Marrero-Ponce, Yovani
Zupan, Jure
Pérez-Giménez, Facundo
Freitas, Matheus P.
metadata.artigo.dc.subject: GT-STAF indices
Molecular symmetry
Amino acids
Furylethylenes
metadata.artigo.dc.publisher: The Chemical Society of Japan (CSJ)
metadata.artigo.dc.date.issued: 2015
metadata.artigo.dc.identifier.citation: BARIGYE, S. J. et al. Structural and physicochemical interpretation of GT-STAF information theory-based indices. Bulletin of the Chemical Society of Japan, [S.l.], v. 88, n. 1, p. 97-109, 2015. DOI: 10.1246/bcsj.20140037.
metadata.artigo.dc.description.abstract: The underlying structural and physicochemical interpretation of the recently defined information indices (denominated as GT-STAF indices) is examined, with the aim of gaining greater insight on the codified chemical information. It is found that these indices are related with molecular symmetry in the context of the defined molecular “fragment” model. Moreover, these indices are sensitive to structural differences, demonstrating gradual changes consistent with modifications in the molecular structure. A principal component analysis reveals that the GT-STAF indices generally codify conformational, physicochemical, and thermodynamic properties of amino acids. A study with aniline derivatives demonstrates that the GT-STAF indices do not directly correlate with the ionization constant (pKa); but rather require multivariate contributions to yield correlations comparable with univariate models for quantum chemical parameters, suggesting that the former codify some other form of electronic information orthogonal to the latter. Finally, an evaluation of atomic contributions to the molecular hydrophobicity in furylethylenes demonstrates that the GT-STAF approach generally approximates to chemical properties quite well.
metadata.artigo.dc.identifier.uri: https://www.journal.csj.jp/doi/10.1246/bcsj.20140037
http://repositorio.ufla.br/jspui/handle/1/41850
metadata.artigo.dc.language: en_US
Appears in Collections:DQI - Artigos publicados em periódicos

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