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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Autores principales: Noorshida Mohd Ali, Anthony J. H. M. Meijer, Michael D. Ward, Norlinda Daud, Norhayati Hashim, Illyas Md Isa
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Publicado: Department of Chemistry, Universitas Gadjah Mada 2021
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spelling 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)
institution DOAJ
collection DOAJ
language EN
topic iridium(iii) anionic complex
dft calculation
solvation hydration shell
cyanide ligand
Chemistry
QD1-999
spellingShingle 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
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AT anthonyjhmmeijer solvatochromismandtheoreticalstudiesofdicyanobisphenylpyridineiridiumiiicomplexusingdensityfunctionaltheory
AT michaeldward solvatochromismandtheoreticalstudiesofdicyanobisphenylpyridineiridiumiiicomplexusingdensityfunctionaltheory
AT norlindadaud solvatochromismandtheoreticalstudiesofdicyanobisphenylpyridineiridiumiiicomplexusingdensityfunctionaltheory
AT norhayatihashim solvatochromismandtheoreticalstudiesofdicyanobisphenylpyridineiridiumiiicomplexusingdensityfunctionaltheory
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