Effect of electronic structure of energy transfer in bimetallic Ru(ii)/Os(ii) complexes

被引：1

作者：

Dai, Weijun ^{[1
]}

Yu, Shiwen ^{[1
]}

Kong, Ci ^{[1
]}

Zhao, Defang ^{[1
]}

He, Chixian ^{[1
]}

Liu, Zining ^{[1
]}

Dong, Jianwei ^{[1
]}

Liu, Jian-Jun ^{[1
]}

Cheng, Feixiang ^{[1
]}

机构：

[1] Qujing Normal Univ, Coll Chem & Environm Sci, Qujing 655011, Peoples R China

来源：

DALTON TRANSACTIONS | 2023年 / 52卷 / 04期

关键词：

ABSORPTION-SPECTRA; ELECTROCHEMICAL-BEHAVIOR; PHOTOPHYSICAL PROPERTIES; LUMINESCENCE PROPERTIES; INTERCOMPONENT ENERGY; COMPETITIVE ENERGY; RUTHENIUM(II); DINUCLEAR; LIGANDS; LIFETIMES;

D O I：

10.1039/d2dt03709b

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

Novel monometallic (mu-LL ')Ru, Ru(mu-LL '), homobimetallic Ru(mu-LL ')Ru, and heterodimetallic Ru(mu-LL ')Os and Os(mu-LL ')Ru complexes based on two asymmetrical ligands LL ' (where LL ' = (LL1 ')-L-1, (LL2 ')-L-2) have been synthesized and characterized. Spectroscopic analysis indicates that all complexes exhibit intense spin-allowed ligand-centered (LC) transitions at 288 nm and Ru-based moderate spin-allowed MLCT absorption between 440-450 nm. The Ru(mu-LL ')Os and Os(mu-LL ')Ru dinuclear complexes show Os-based unit absorption in the range of 565-583 nm. The Ru-based units of the complexes present different emission intensities due to differing steric hindrance at the coordination sites of the two bridging ligands. The Os(mu-LL ')Ru dinuclear complexes present weaker emission intensity than their parent monometallic complexes (mu-LL ')Ru. These results indicate that the emission of Os(mu-LL ')Ru dinuclear complexes is quenched by the Os(ii)-based units.

引用

页码：990 / 999

页数：10

共 50 条

[1] Effect of electronic structure of energy transfer in bimetallic Ru(ii)/Os(ii) complexes
Dai, Weijun
Yu, Shiwen
Kong, Ci
Zhao, Defang
He, Chixian
Liu, Zining
Dong, Jianwei
Liu, Jian-Jun
Cheng, Feixiang
Dalton Transactions, 2022, 52 (04) : 990 - 999
[2] Photoinduced electronic energy transfer in modular, conjugated, dinuclear Ru(II)/Os(II) complexes
Welter, S
Salluce, N
Belser, P
Groeneveld, M
De Cola, L
COORDINATION CHEMISTRY REVIEWS, 2005, 249 (13-14) : 1360 - 1371
[3] Low energy charge transfer in ploypyridyl complexes of Ru(II) and Os(II).
Meyer, TJ
Dattelbaum, DM
ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY, 2002, 224 : U643 - U643
[4] PHOTOINDUCED ENERGY AND ELECTRON-TRANSFER PROCESSES IN SUPRAMOLECULAR SPECIES - TRIS(BIPYRIDINE) COMPLEXES OF RU(II)/OS(II), RU(II)/RU(III), OS(II)/OS(III), AND RU(II)/OS(III) SEPARATED BY A RIGID SPACER
DECOLA, L
BALZANI, V
BARIGELLETTI, F
FLAMIGNI, L
BELSER, P
VONZELEWSKY, A
FRANK, M
VOGTLE, F
INORGANIC CHEMISTRY, 1993, 32 (23) : 5228 - 5238
[5] ELECTRONIC-ENERGY TRANSFER ACROSS ETHYNYL-BRIDGED RU-II/OS-II TERPYRIDYL COMPLEXES
GROSSHENNY, V
HARRIMAN, A
ZIESSEL, R
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION IN ENGLISH, 1995, 34 (10): : 1100 - 1102
[6] Photoinduced intramolecular energy transfer in rigidly bridged bimetallic Ru(II) complexes
Kim, WY
Schmehl, RH
ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY, 1996, 211 : 100 - INOR
[7] Ru(II)-Ru(II) and Ru(II)-Os(II) Homo-/Heterodinuclear Complexes and Ru3(II)-Ru(II) Homotetranuclear Complexes Based on Heteroditopic Bridging Ligands: Synthesis, Photophysics, and Effective Energy Transfer
Yin, Hong-Ju
Yu, Shiwen
Yang, Yuting
He, Chixian
Cheng, Feixiang
INORGANIC CHEMISTRY, 2023, 63 (01) : 621 - 634
[8] Electrochemical properties and electronic energy level structure of Os(II) complexes
Wu, F
Tian, WJ
Zhang, HY
Ma, YG
Shen, JC
Che, CM
CHEMICAL JOURNAL OF CHINESE UNIVERSITIES-CHINESE, 1998, 19 (10): : 1671 - 1673
[9] Energy transfer between Ru(II) and Os(H) polypyridyl complexes linked to polystyrene
Fleming, CN
Dupray, LM
Papanikolas, JM
Meyer, TJ
JOURNAL OF PHYSICAL CHEMISTRY A, 2002, 106 (10): : 2328 - 2334
[10] PHOTOINDUCED INTRAMOLECULAR ENERGY-TRANSFER IN RIGIDLY BRIDGED BIMETALLIC RU(II) COMPLEXES
KIM, WY
LIANG, YW
SCHMEHL, RH
ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY, 1995, 210 : 145 - INOR

← 1 2 3 4 5 →