Solvatochromism and Theoretical Studies of Dicyanobis(phenylpyridine)iridium(III) Complex Using Density Functional Theory
Luminescent cyanometallate [Ir(ppy)2(CN)2]– (ppy = C6H5C5H4N) has recently gained attention due to its desired photophysical properties. Our research group reported that the [Ir(ppy)2(CN)2]– has shown a negative solvatochromism like [Ru(bipy)(CN)4]2–, resulting in a blue-shift of the UV-Vis absorpti...
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Department of Chemistry, Universitas Gadjah Mada
2021
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oai:doaj.org-article:6fcd1293426e4a2b82d45fd3dde5d9502021-12-02T15:56:44ZSolvatochromism and Theoretical Studies of Dicyanobis(phenylpyridine)iridium(III) Complex Using Density Functional Theory1411-94202460-157810.22146/ijc.62763https://doaj.org/article/6fcd1293426e4a2b82d45fd3dde5d9502021-04-01T00:00:00Zhttps://jurnal.ugm.ac.id/ijc/article/view/62763https://doaj.org/toc/1411-9420https://doaj.org/toc/2460-1578Luminescent cyanometallate [Ir(ppy)2(CN)2]– (ppy = C6H5C5H4N) has recently gained attention due to its desired photophysical properties. Our research group reported that the [Ir(ppy)2(CN)2]– has shown a negative solvatochromism like [Ru(bipy)(CN)4]2–, resulting in a blue-shift of the UV-Vis absorption bands in the water. Therefore, to gain insight into the specific solvent-solute interaction governed by the hydrogen bond in the solvation hydration shell, density functional theory (DFT) calculations were performed on the singlet ground state of the [Ir(ppy)2(CN)2]– and its solvent environment in the water at B3LYP level theory. It was demonstrated, seven water molecules provided a good description of the relevant spectra: IR and UV-Vis. The calculation reproduced the positions and intensities of the observed n(CºN) bands at 2069 and 2089 cm–1. The calculated MLCT transition wavelength was 366 nm vs. a measured value of 358 nm, differing by 8 nm. The study revealed the water molecules interacted with cyanide ligands through CN⋯H-OH type hydrogen bonds and water-water interactions (HO-H⋯OH2 type hydrogen bonds) were involved in the solvation hydration shell around the [Ir(ppy)2(CN)2]–.Noorshida Mohd AliAnthony J. H. M. MeijerMichael D. WardNorlinda DaudNorhayati HashimIllyas Md IsaDepartment of Chemistry, Universitas Gadjah Madaarticleiridium(iii) anionic complexdft calculationsolvation hydration shellcyanide ligandChemistryQD1-999ENIndonesian Journal of Chemistry, Vol 21, Iss 3, Pp 769-775 (2021) |
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iridium(iii) anionic complex dft calculation solvation hydration shell cyanide ligand Chemistry QD1-999 |
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iridium(iii) anionic complex dft calculation solvation hydration shell cyanide ligand Chemistry QD1-999 Noorshida Mohd Ali Anthony J. H. M. Meijer Michael D. Ward Norlinda Daud Norhayati Hashim Illyas Md Isa Solvatochromism and Theoretical Studies of Dicyanobis(phenylpyridine)iridium(III) Complex Using Density Functional Theory |
description |
Luminescent cyanometallate [Ir(ppy)2(CN)2]– (ppy = C6H5C5H4N) has recently gained attention due to its desired photophysical properties. Our research group reported that the [Ir(ppy)2(CN)2]– has shown a negative solvatochromism like [Ru(bipy)(CN)4]2–, resulting in a blue-shift of the UV-Vis absorption bands in the water. Therefore, to gain insight into the specific solvent-solute interaction governed by the hydrogen bond in the solvation hydration shell, density functional theory (DFT) calculations were performed on the singlet ground state of the [Ir(ppy)2(CN)2]– and its solvent environment in the water at B3LYP level theory. It was demonstrated, seven water molecules provided a good description of the relevant spectra: IR and UV-Vis. The calculation reproduced the positions and intensities of the observed n(CºN) bands at 2069 and 2089 cm–1. The calculated MLCT transition wavelength was 366 nm vs. a measured value of 358 nm, differing by 8 nm. The study revealed the water molecules interacted with cyanide ligands through CN⋯H-OH type hydrogen bonds and water-water interactions (HO-H⋯OH2 type hydrogen bonds) were involved in the solvation hydration shell around the [Ir(ppy)2(CN)2]–. |
format |
article |
author |
Noorshida Mohd Ali Anthony J. H. M. Meijer Michael D. Ward Norlinda Daud Norhayati Hashim Illyas Md Isa |
author_facet |
Noorshida Mohd Ali Anthony J. H. M. Meijer Michael D. Ward Norlinda Daud Norhayati Hashim Illyas Md Isa |
author_sort |
Noorshida Mohd Ali |
title |
Solvatochromism and Theoretical Studies of Dicyanobis(phenylpyridine)iridium(III) Complex Using Density Functional Theory |
title_short |
Solvatochromism and Theoretical Studies of Dicyanobis(phenylpyridine)iridium(III) Complex Using Density Functional Theory |
title_full |
Solvatochromism and Theoretical Studies of Dicyanobis(phenylpyridine)iridium(III) Complex Using Density Functional Theory |
title_fullStr |
Solvatochromism and Theoretical Studies of Dicyanobis(phenylpyridine)iridium(III) Complex Using Density Functional Theory |
title_full_unstemmed |
Solvatochromism and Theoretical Studies of Dicyanobis(phenylpyridine)iridium(III) Complex Using Density Functional Theory |
title_sort |
solvatochromism and theoretical studies of dicyanobis(phenylpyridine)iridium(iii) complex using density functional theory |
publisher |
Department of Chemistry, Universitas Gadjah Mada |
publishDate |
2021 |
url |
https://doaj.org/article/6fcd1293426e4a2b82d45fd3dde5d950 |
work_keys_str_mv |
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