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Molecules 2017, 22(5), 720; doi:10.3390/molecules22050720

Toward Exploring Novel Organic Materials: MP4-DFT Properties of 4-Amino-3-Iminoindene

Department of Chemistry, College of Sciences, Al-Hussein Bin Talal University, P. O. Box 20, Ma’an, Jordan
Academic Editor: Luis R. Domingo
Received: 8 March 2017 / Revised: 23 April 2017 / Accepted: 25 April 2017 / Published: 30 April 2017
(This article belongs to the Section Theoretical Chemistry)
View Full-Text   |   Download PDF [1810 KB, uploaded 30 April 2017]   |  

Abstract

Tautomerism links with many applications and remains an attracting feature in exploring novel systems. In this regard, properties of indene-based HNCCCN segments have not received any considerable attention. In this computational organic chemistry study, first, to calculate the proton transfer energy barrier at a reasonable cost, the study identified an accurate forth order Møller–Plesset perturbation theory-density functional theory (MP4-DFT) protocol equivalent to the outstanding pioneering benchmark calculations. The calculations illustrate that the two tautomers of the 4-amino-3-iminoindene nucleus are separated by a considerable energy barrier while featuring different molecular orbital characteristics; frontier orbital distribution, λmax, and energies, which are known basic requirements in molecular switching and logic circuit applications. The N-H/BH2 substitution was found to have significant influence on the electronic structure of the skeleton. Similarities in the two tautomers and the boron derivative to properties of known molecular materials have been found. View Full-Text
Keywords: tautomerism; MP4(SDTQ); molecular switching; CAM-B3LYP; frontier orbitals; semiconductor tautomerism; MP4(SDTQ); molecular switching; CAM-B3LYP; frontier orbitals; semiconductor
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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Irshaidat, T. Toward Exploring Novel Organic Materials: MP4-DFT Properties of 4-Amino-3-Iminoindene. Molecules 2017, 22, 720.

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