Skip navigation
Please use this identifier to cite or link to this item: http://repository.iitr.ac.in/handle/123456789/3817
Title: Synthesis, Characterisation, Photophysical and Interfacial Electron Transfer Studies to TiO 2 Nanoparticle of Novel Heteroleptic Ruthenium Terpyridyl Complex
Authors: Rana P.J.S.
Kundi V.
Singh P.
Kar P.
Published in: ChemistrySelect
Abstract: In this context we have synthesised and characterised a novel heteroleptic [Ru (4′-(4 N,N dimethyl phenyl) 2,2′6’:2′′-terpyridine) 4′-(4Carboxyphenyl)-2,2′6’:2′′-terpyridine]2PF 6 complex [PR2] with prolonged excited-state lifetime Ï„ of6.37 ns which is 25 fold more than the homologous [Ru(tpy) 2 ](PF 6 ) 2 . The appropriate selection of ligand moieties is employed for engineering the energy level of 3 MLCTand 3 MC excited states to restrain the nonradiativeemissionfromthermally populated 3 MC excited state.This task is well judged by counter balancing effect ofStrong σ- donor and Ï€- acceptor substituent attached to terpyridyl moiety. This title complex exhibits an oxidation potential (E 1/2 ) of 1.28 V vs Ag/AgCl. Thetime-resolved absorption spectroscopy employed for interfacial charge transfer study reveals strong coupling in title complex–semiconducting TiO 2 nanoparticle system which facilitates pulse width limited (<100 fs) ultrafast single exponential electron injection. © 2016 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim
Citation: ChemistrySelect (2016), 1(13): 3777-3783
URI: https://doi.org/10.1002/slct.201600626
http://repository.iitr.ac.in/handle/123456789/3817
Issue Date: 2016
Publisher: Wiley-Blackwell
Keywords: Interfacial Electron Transfer
Ruthenium
TiO 2 .
ISSN: 23656549
Author Scopus IDs: 56681873300
55338373800
56707905900
22834801000
Author Affiliations: Rana, P.J.S., Department of Chemistry, Indian Institute of Technology, Roorkee, 247667, India
Kundi, V., Department of Chemistry, Indian Institute of Technology, Roorkee, 247667, India
Singh, P., Department of Chemistry, Indian Institute of Technology, Roorkee, 247667, India
Kar, P., Department of Chemistry, Indian Institute of Technology, Roorkee, 247667, India
Funding Details: We thank Prof. Pradipta Banerjee, Director, Indian Institute of Technology Roorkee, India for his constant support and encouragement. The authors would also like to thank Prof Pratik Sen, Department of Chemistry, IIT Kanpur for performing Transient absorption studies. P.K gratefully acknowledges the Council of Scientific & Industrial Research CSIR (01(2796)/14/EMR-II), New Delhi, India for financial support. PJSR and PS acknowledge MHRD, India, for their junior research fellowship.
Corresponding Author: Kar, P.; Department of Chemistry, Indian Institute of TechnologyIndia; email: kar.prasen@gmail.com
Appears in Collections:Journal Publications [CY]

Files in This Item:
There are no files associated with this item.
Show full item record


Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.