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A Density Functional Investigation of Geometrical and Electronic Structures, Charge Transfer, and Photoluminescent Property of a Zinc(II) Complex with 5-Amino-2-(1H-Benzoimidazol-2-yl)-Phenol

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Abstract

In this paper the results of DFT/TDDFT-based theoretical calculations of an electroluminescent zinc(II) chelate complex with 5-amino-2-(1H-benzoimidazol-2-yl)-phenol (HL), namely [ZnL2] (1), are presented. The molecular geometry, the orbital interaction between the L ligand and the Zn(II) center, and the effect of the substituted NH2 group on its absorption/emission property and colors are analyzed in detail. Moreover, the important Zn-ligand bonding property is analyzed by means of PDOS, OPDOS spectra, and the Mulliken population analysis scheme. It is the main ionic interaction between Zn(II) and the L ligand. Owing to the effect of the substituted NH2 group on its absorption/emission property and colors, it is quite probable that by introducing different substituted groups, a series of new OLED-relevant metal chelate complexes can be designed with their absorption/emission property and colors being tuned.

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Correspondence to Y.-P. Tong.

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Original Russian Text © 2018 Y.-P. Tong, Y.-W. Lin, H. Liu.

The text was submitted by the authors in English. Zhurnal Strukturnoi Khimii, Vol. 59, No. 5, pp. 1130–1136, June-July, 2018.

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Tong, YP., Lin, YW. & Liu, H. A Density Functional Investigation of Geometrical and Electronic Structures, Charge Transfer, and Photoluminescent Property of a Zinc(II) Complex with 5-Amino-2-(1H-Benzoimidazol-2-yl)-Phenol. J Struct Chem 59, 1088–1094 (2018). https://doi.org/10.1134/S0022476618050104

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  • DOI: https://doi.org/10.1134/S0022476618050104

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