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Structural, Vibrational, and Electronic Properties of the Glucoalkaloid Strictosidine: A Combined Experimental and Theoretical Study
Joint Authors
Salomé, Kahlil Schwanka
Costa, Emmanoel V.
Barison, Anderson
Costa, Renyer Alves
Pinheiro, Maria Lucia Belem
Oliveira, Kelson Mota Teixeira de
Iank, Júlio Rodolfo
da Silva, Noam Gadelha
Cabral, Tiara Souza
Source
Issue
Vol. 2016, Issue 2016 (31 Dec. 2016), pp.1-16, 16 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2016-03-08
Country of Publication
Egypt
No. of Pages
16
Main Subjects
Abstract EN
A detailed structural analysis and spectral behavior of the glucoalkaloid strictosidine, a precursor of all monoterpene indole alkaloids, are discussed.
The experimental NMR, FTIR, and UV results were compared to the theoretical DFT spectra calculated by Becke using the three-parameter Lee-Yang-Parr (B3LYP) function with 6-31G(d) and 6-311++G(2d,p) basis sets.
The theoretical geometry optimization data were compared with the X-ray data for precursors and similar structures in the associated literature.
The similarity between the theoretical and experimental coupling constants values made it possible to affirm the values of dihedral angles and their configuration, reinforcing findings from previous stereochemical studies.
Theoretical UV analysis agreed well with the measured experimental data, with bands assigned.
Calculated HOMO/LUMO gaps show low excitation energy for strictosidine, justifying its stability and reaction kinetics.
The molecular electrostatic potential map shows opposite potentials regions that form hydrogen bonds that stabilize the dimeric form, which were confirmed by excellent agreement of the dimeric form theoretical wavenumbers with the experimental IR spectrum.
ESI-MS/MS data revealed patterns for the fragmentation of the protonated strictosidine molecule outlined by an NBO study.
American Psychological Association (APA)
Costa, Renyer Alves& Pinheiro, Maria Lucia Belem& Oliveira, Kelson Mota Teixeira de& Barison, Anderson& Salomé, Kahlil Schwanka& Iank, Júlio Rodolfo…[et al.]. 2016. Structural, Vibrational, and Electronic Properties of the Glucoalkaloid Strictosidine: A Combined Experimental and Theoretical Study. Journal of Chemistry،Vol. 2016, no. 2016, pp.1-16.
https://search.emarefa.net/detail/BIM-1107550
Modern Language Association (MLA)
Costa, Renyer Alves…[et al.]. Structural, Vibrational, and Electronic Properties of the Glucoalkaloid Strictosidine: A Combined Experimental and Theoretical Study. Journal of Chemistry No. 2016 (2016), pp.1-16.
https://search.emarefa.net/detail/BIM-1107550
American Medical Association (AMA)
Costa, Renyer Alves& Pinheiro, Maria Lucia Belem& Oliveira, Kelson Mota Teixeira de& Barison, Anderson& Salomé, Kahlil Schwanka& Iank, Júlio Rodolfo…[et al.]. Structural, Vibrational, and Electronic Properties of the Glucoalkaloid Strictosidine: A Combined Experimental and Theoretical Study. Journal of Chemistry. 2016. Vol. 2016, no. 2016, pp.1-16.
https://search.emarefa.net/detail/BIM-1107550
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1107550