Synthesis, Characterisation, Photophysical and Interfacial Electron Transfer Studies to TiO2 Nanoparticle of Novel Heteroleptic Ruthenium Terpyridyl Complex

被引：5

作者：

Rana, Prem Jyoti Singh ^{[1
]}

Kundi, Varun ^{[1
]}

Singh, Pallavi ^{[1
]}

Kar, Prasenjit ^{[1
]}

机构：

[1] Indian Inst Technol, Dept Chem, Roorkee 247667, Uttar Pradesh, India

来源：

CHEMISTRYSELECT | 2016年 / 1卷 / 13期

关键词：

Interfacial Electron Transfer; Ruthenium; TiO2; NANOCRYSTALLINE TIO2; POLYPYRIDYL COMPLEXES; TRANSFER DYNAMICS; EXCITED-STATE; SOLAR-CELLS; PHOTOCHEMISTRY; METAL; LIGANDS;

D O I：

10.1002/slct.201600626

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

In this context we have synthesised and characterised a novel heteroleptic [Ru (4'-(4 N,N dimethyl phenyl) 2,2'6':2"-terpyridine) 4'-(4Carboxypheny1)-2,2'6':2"-terpyridinel2PF6 complex [PR2] with prolonged excited-state lifetime of6.37 ns which is 25 fold more than the homologous [Ru(tpy)2](PF6)2. The appropriate selection of ligand moieties is employed for engineering the energy level of(3)MLCTand (MC)-M-3 excited states to restrain the non-radiative emission from thermally populated (MC)-M-3 excited state.This task is well judged by counter balancing effect of Strong sigma-donor and pi-acceptor substituent attached to terpyridyl moiety. This title complex exhibits an oxidation potential (E-1/2) of 1.28 V vs Ag/AgCI. Thetime-resolved absorption spectroscopy employed for interfacial charge transfer study reveals strong coupling in title complex semiconducting TiO2 nanoparticle system which facilitates pulse width limited (<100 fs) ultrafast single exponential electron injection.

引用

页码：3777 / 3783

页数：7

共 39 条

[1] Photochemistry and photophysics of Ru(II)-polypyridine complexes in the Bologna group. From early studies to recent developments [J].

Balzani, V ;

Juris, A .

COORDINATION CHEMISTRY REVIEWS, 2001, 211 :97-115

[2] Luminescent and redox-active polynuclear transition metal complexes [J].

Balzani, V ;

Juris, A ;

Venturi, M ;

Campagna, S ;

Serroni, S .

CHEMICAL REVIEWS, 1996, 96 (02) :759-833

[3] Interfacial Electron Transfer Dynamics of Two Newly Synthesized Catecholate Bound RuII Polypyridyl-Based Sensitizers on TiO2 Nanoparticle Surface - A Femtosecond Pump Probe Spectroscopic Study [J].

Banerjee, Tanmay ;

Rawalekar, Sachin ;

Das, Amitava ;

Ghosh, Hirendra N. .

EUROPEAN JOURNAL OF INORGANIC CHEMISTRY, 2011, (27) :4187-4197

[4] Ultrafast fluorescence detection in tris(2,2′-bipyridine)ruthenium(II) complex in solution:: Relaxation dynamics involving higher excited states [J].

Bhasikuttan, AC ;

Suzuki, M ;

Nakashima, S ;

Okada, T .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2002, 124 (28) :8398-8405

[5] Toward benign syntheses of pyridines involving sequential solvent free aldol and Michael addition reactions [J].

Cave, GWV ;

Raston, CL .

CHEMICAL COMMUNICATIONS, 2000, (22) :2199-2200

[6] New family of ruthenium-dye-sensitized nanocrystalline TiO2 solar cells with a high solar-energy-conversion efficiency [J].

Chen, Kung-Shih ;

Liu, Wei-Hsin ;

Wang, Yu-Hsiu ;

Lai, Chin-Hung ;

Chou, Pi-Tai ;

Lee, Gene-Hsiang ;

Chen, Kellen ;

Chen, Hsing-Yi ;

Chi, Yun ;

Tung, Fu-Ching .

ADVANCED FUNCTIONAL MATERIALS, 2007, 17 (15) :2964-2974

[7] Strategic design and synthesis of osmium(II) complexes bearing a single pyridyl azolate π-chromophore:: Achieving high-efficiency blue phosphorescence by localized excitation [J].

Cheng, Yi-Ming ;

Li, Elise Y. ;

Lee, Gene-Hsiang ;

Chou, Pi-Tai .

INORGANIC CHEMISTRY, 2007, 46 (24) :10276-10286

[8] Ruthenium(II) ammine centres as efficient electron donor groups for quadratic non-linear optics [J].

Coe, BJ ;

EssexLopresti, JP ;

Harris, JA ;

Houbrechts, S ;

Persoons, A .

CHEMICAL COMMUNICATIONS, 1997, (17) :1645-1646

[9] New [(D-terpyridine)-Ru-(D or A-terpyridine)][4-EtPhCO2]2 complexes (D = electron donor group; A = electron acceptor group) as active second-order non linear optical chromophores [J].

Colombo, Alessia ;

Locatelli, Danika ;

Roberto, Dominique ;

Tessore, Francesca ;

Ugo, Renato ;

Cavazzini, Marco ;

Quici, Silvio ;

De Angelis, Filippo ;

Fantacci, Simona ;

Ledoux-Rak, Isabelle ;

Tancrez, Nicolas ;

Zyss, Joseph .

DALTON TRANSACTIONS, 2012, 41 (22) :6707-6714

[10] Metallodendrimers: Metal ions as supramolecular glue [J].

Constable, EC .

CHEMICAL COMMUNICATIONS, 1997, (12) :1073-1080

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