Synthesis and properties of [Pt(4-CO2CH3-py)2(dmit)] and [Pt(4-NO2-py)2(mnt)]: Exploring tunable Pt dyes

Lucy P. Moorcraft; Lorna A. Jack; James R. Jennings; Laurence M. Peter; Lesley J. Yellowlees; Neil Robertson

doi:10.1016/j.poly.2009.09.017

Synthesis and properties of [Pt(4-CO₂CH₃-py)₂(dmit)] and [Pt(4-NO₂-py)₂(mnt)]: Exploring tunable Pt dyes

Lucy P. Moorcraft, Lorna A. Jack, James R. Jennings, Laurence M. Peter, Lesley J. Yellowlees, Neil Robertson

Research output: Contribution to journal › Article › peer-review

Abstract

Two [Pt(II)(substituted-pyridyl)₂(dithiolate)] dyes with the formulas [Pt(4-CO₂CH₃-py)₂(dmit)] and [Pt(4-NO₂-py)₂(mnt)] (where py = pyridyl, dmit = 1,3-dithiol-2-thione-4,5-dithiolate and mnt = maleonitriledithiolate) and their dichloride precursors [PtCl₂(4-R-py)₂] have been synthesized and compared to a previously-reported dye [Pt(4-CO₂CH₃-py)₂(mnt)]. Variation of either the pyridyl ligands or the ditholate ligand showed tuning of the electrochemical and spectroscopic characteristics of the dyes as evidenced by cyclic and differential pulse voltammetry, hybrid DFT calculations, UV/Vis spectroelectrochemistry and in situ EPR spectroelectrochemistry. The HOMO was shown to be mostly dithiolate based and the LUMO pyridyl based allowing absorption characteristics to be predictably tuned to longer wavelengths, which is important for optimization of such dyes in applications such as solar energy conversion.

Original language	English
Pages (from-to)	4084-4090
Number of pages	7
Journal	Polyhedron
Volume	28
Issue number	18
DOIs	https://doi.org/10.1016/j.poly.2009.09.017
Publication status	Published - 8 Dec 2009

Keywords / Materials (for Non-textual outputs)

Pt
Dithiolate
Pyridyl
Solar cells
Electrochemistry
DFT
DIIMINE DITHIOLATE COMPLEXES
SENSITIZED SOLAR-CELLS
METAL
TIO2
1,3-DITHIOLE-2-THIONE-4,5-DITHIOLATE
REACTIVITY
BIPYRIDYL
TDDFT

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10.1016/j.poly.2009.09.017

Synthesis and properties of [Pt(4-CO2CH3-py)2(dmit)] and [Pt(4-NO2-py)2(mnt)] Exploring tunable Pt dyes
Copyright © 2009 Elsevier Ltd. All rights reserved.
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http://www.sciencedirect.com/science/article/pii/S0277538709006275#

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title = "Synthesis and properties of [Pt(4-CO2CH3-py)2(dmit)] and [Pt(4-NO2-py)2(mnt)]: Exploring tunable Pt dyes",

abstract = "Two [Pt(II)(substituted-pyridyl)2(dithiolate)] dyes with the formulas [Pt(4-CO2CH3-py)2(dmit)] and [Pt(4-NO2-py)2(mnt)] (where py = pyridyl, dmit = 1,3-dithiol-2-thione-4,5-dithiolate and mnt = maleonitriledithiolate) and their dichloride precursors [PtCl2(4-R-py)2] have been synthesized and compared to a previously-reported dye [Pt(4-CO2CH3-py)2(mnt)]. Variation of either the pyridyl ligands or the ditholate ligand showed tuning of the electrochemical and spectroscopic characteristics of the dyes as evidenced by cyclic and differential pulse voltammetry, hybrid DFT calculations, UV/Vis spectroelectrochemistry and in situ EPR spectroelectrochemistry. The HOMO was shown to be mostly dithiolate based and the LUMO pyridyl based allowing absorption characteristics to be predictably tuned to longer wavelengths, which is important for optimization of such dyes in applications such as solar energy conversion.",

keywords = "Pt, Dithiolate, Pyridyl, Solar cells, Electrochemistry, DFT, DIIMINE DITHIOLATE COMPLEXES, SENSITIZED SOLAR-CELLS, METAL, TIO2, 1,3-DITHIOLE-2-THIONE-4,5-DITHIOLATE, REACTIVITY, BIPYRIDYL, TDDFT",

author = "Moorcraft, \{Lucy P.\} and Jack, \{Lorna A.\} and Jennings, \{James R.\} and Peter, \{Laurence M.\} and Yellowlees, \{Lesley J.\} and Neil Robertson",

year = "2009",

month = dec,

day = "8",

doi = "10.1016/j.poly.2009.09.017",

language = "English",

volume = "28",

pages = "4084--4090",

journal = "Polyhedron",

issn = "0277-5387",

publisher = "Elsevier",

number = "18",

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T1 - Synthesis and properties of [Pt(4-CO2CH3-py)2(dmit)] and [Pt(4-NO2-py)2(mnt)]: Exploring tunable Pt dyes

AU - Moorcraft, Lucy P.

AU - Jack, Lorna A.

AU - Jennings, James R.

AU - Peter, Laurence M.

AU - Yellowlees, Lesley J.

AU - Robertson, Neil

PY - 2009/12/8

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N2 - Two [Pt(II)(substituted-pyridyl)2(dithiolate)] dyes with the formulas [Pt(4-CO2CH3-py)2(dmit)] and [Pt(4-NO2-py)2(mnt)] (where py = pyridyl, dmit = 1,3-dithiol-2-thione-4,5-dithiolate and mnt = maleonitriledithiolate) and their dichloride precursors [PtCl2(4-R-py)2] have been synthesized and compared to a previously-reported dye [Pt(4-CO2CH3-py)2(mnt)]. Variation of either the pyridyl ligands or the ditholate ligand showed tuning of the electrochemical and spectroscopic characteristics of the dyes as evidenced by cyclic and differential pulse voltammetry, hybrid DFT calculations, UV/Vis spectroelectrochemistry and in situ EPR spectroelectrochemistry. The HOMO was shown to be mostly dithiolate based and the LUMO pyridyl based allowing absorption characteristics to be predictably tuned to longer wavelengths, which is important for optimization of such dyes in applications such as solar energy conversion.

AB - Two [Pt(II)(substituted-pyridyl)2(dithiolate)] dyes with the formulas [Pt(4-CO2CH3-py)2(dmit)] and [Pt(4-NO2-py)2(mnt)] (where py = pyridyl, dmit = 1,3-dithiol-2-thione-4,5-dithiolate and mnt = maleonitriledithiolate) and their dichloride precursors [PtCl2(4-R-py)2] have been synthesized and compared to a previously-reported dye [Pt(4-CO2CH3-py)2(mnt)]. Variation of either the pyridyl ligands or the ditholate ligand showed tuning of the electrochemical and spectroscopic characteristics of the dyes as evidenced by cyclic and differential pulse voltammetry, hybrid DFT calculations, UV/Vis spectroelectrochemistry and in situ EPR spectroelectrochemistry. The HOMO was shown to be mostly dithiolate based and the LUMO pyridyl based allowing absorption characteristics to be predictably tuned to longer wavelengths, which is important for optimization of such dyes in applications such as solar energy conversion.

KW - Pt

KW - Dithiolate

KW - Pyridyl

KW - Solar cells

KW - Electrochemistry

KW - DFT

KW - DIIMINE DITHIOLATE COMPLEXES

KW - SENSITIZED SOLAR-CELLS

KW - METAL

KW - TIO2

KW - 1,3-DITHIOLE-2-THIONE-4,5-DITHIOLATE

KW - REACTIVITY

KW - BIPYRIDYL

KW - TDDFT

UR - https://www.scopus.com/pages/publications/70449641214

U2 - 10.1016/j.poly.2009.09.017

DO - 10.1016/j.poly.2009.09.017

M3 - Article

SN - 0277-5387

VL - 28

SP - 4084

EP - 4090

JO - Polyhedron

JF - Polyhedron

IS - 18

ER -

Synthesis and properties of [Pt(4-CO₂CH₃-py)₂(dmit)] and [Pt(4-NO₂-py)₂(mnt)]: Exploring tunable Pt dyes

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Keywords / Materials (for Non-textual outputs)

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