Synthesis, Crystal Structure and Spectroscopic Properties of Cyanide-bridged Complex Ru - 论文

2019.5 Vol. 3&No. 5Chinese J. Struct. Chem.745-753Synthesis, Crystal Structure and

Spectroscopic Properties of Cyanide-

bridged Complex [Run(ttpy)(CN)3Mnin(salen)]?SUN Gui-Fang LI Jia-Qi YU Hong-Liang

YU Meng PENG Pei DING Wen-Wen WANG Yong<2(Hubei Key Laboratory of Drug Synthesis and Optimization, Jingchu University of Technology, Jingmen, Hubei 444800, China)ABSTRACT Tricyanide building block K[Ru(ttpy)(CN)3] and [Mnin(salen)](ClO4)have been

used to design and synthesize a heterobimetal lie one-dimensional (1￡>) zigzag chain complex 1. [Ru,I(ttpy)(CN)3Mn11,(salen)] (ttpy = 4 -(/7-tolyl)-2,2 :6 ,2 -terpyridine, salen = N,N -ethylenebis-

(salicylideneaminato)dianion). Single-crystal X-ray diffraction analysis shows complex 1 crystallizes in orthorhombic Phea space group and the asymmetric unit of 1 contains one [-NC-RuII(ttpy)(CN)(//-CN)-MnIII-(salen)-] molecule. In the structure of 1, each [RuJI(ttpy)(CN)3]'

connects two [Mnin(salewith two cyanide groups in a cz^-conformation, and in turn each [Mnin(salen)] unit links two [RuH(ttpy)(CN)3]_ building blocks in a amconfdirnation. resulting

in a \\D [-NC-Ru'^CN-Mn111-],! chain. Furthennore, the electronic absorption spectra and luminescence spectroscopy of complex 1 have also been studied.Keywords: cyanide-bridged, crystal structure, Ru(II), spectroscopic properties, Mn(III); DOI: 10.14102/j.cnki.0254-5861.2011-21841 INTRODUCTIONThe tridentate terpyridine (tpy)-type chelating units

have been used to design photoactive ruthenium(II)

Among the transition metal-based light harvesting

complexes in the polypyridine ligands due to their

building-blocks, ruthenium(II) complexes containing

tunable capability and to build linear rod-like struc-polypyridyl ligands have been numerously studied

tures16'81. Apart from tpy itself, a great number of because of their spectroscopic, photophysical, tpys with different functional groups have been

photochemical, and electrochemical properties11 习.

designed by changing the steric, electronic, and The advantage of these complexes is that they can photophysical properties of their complexes19 l(),.absorb light in the visible region of the spectrum,

The spectroscopic properties can often be tuned giving rise to metal-to-ligand charge-transfer by changing different organic ligands and/or intro?

(!MLCT) excited state?, which undergoes very fast

ducing coligands in ruthenium(II) complexes con- intersystem crossing to produce a potentially long-

taining polypyridyl ligands111'1'1. Until now, the

lived luminescent MLCT state, and their adjustable investigation on the spectroscopic properties of

photophysical and electrochemical properties14,

ruthenium(II) complexes containing polypyridylReceived 19 September 2018; accepted 14 January- 2019 (CCDC 1851207)① Supported by the Science and Technology Research Project of Hubei Provincial Department of Education (China, No. Q20174302),the Scientific Research Foundation of Jingchu University of Technology (No. QN201602),National college students innovation and entrepreneurship training program (No. 201811336003, China)(2) Corresponding authors Yong Wang, male, lecturer, doctor, majoring in organometallic chemistry. E-mail: \\vangyongl987l l@yahoo com