Design, Synthesis and Photophysical Studies of Luminescent Rhodium(III) Complexes in Near-Infrared Region

Lu, Jingyi; Zhao, Shunan; Wei, Fangfang; Wong, Keith Man-Chung

2023-02-01

10.1002/ejic.202200792

EUROPEAN JOURNAL OF INORGANIC CHEMISTRY   影响因子和分区

1434-1948

1099-0682

A series of near-infrared (NIR)-emitting cyclometalated rhodium(III) complexes have been designed, synthesized and characterized. The NIR luminescence has been realized by rational design of strong sigma-donor cyclometalating (C<^>N) ligand with extended pi-conjugation structure for decreasing the energy level of intraligand (IL) state. In addition, the investigation of substituents on the benzo[g]quinoxaline moiety as the carbon-donor demonstrated that the luminescence can be further shifted to the red by the introduction of electron-donating thienyl groups. The luminescence maxima of these complexes are ranging from 763 nm to 792 nm with the luminescence quantum yield (phi(lum)) of 0.41 %-0.66 % in dichloromethane solution. This work demonstrates the first example of NIR-phosphorescent rhodium(III) complexes and provides an alternative for diversifying the development of NIR materials.

near-infrared photoluminescence phosphorescence photophysics rhodium

SCI ; EI

英语

第一 ; 通讯

National Natural Science Foundation of China[22171126] ; Science, Technology and Innovation Commission of Shenzhen Municipality["JCYJ20210324104609025","JCYJ20190809165411528"]

Chemistry

Chemistry, Inorganic & Nuclear

WOS:000934659200001

WILEY-V C H VERLAG GMBH

20231613941533

Dichloromethane ; Phosphorescence ; Red Shift ; Rhodium compounds ; Synthesis (chemical)

Light/Optics:741.1 ; Chemical Reactions:802.2 ; Organic Compounds:804.1

CHEMISTRY

Web of Science

Southern Univ Sci & Technol, Dept Chem, 1088 Xueyuan Blvd, Shenzhen 518055, Peoples R China

Lu, Jingyi,Zhao, Shunan,Wei, Fangfang,et al. Design, Synthesis and Photophysical Studies of Luminescent Rhodium(III) Complexes in Near-Infrared Region[J]. EUROPEAN JOURNAL OF INORGANIC CHEMISTRY,2023,26(11).

Lu, Jingyi,Zhao, Shunan,Wei, Fangfang,&Wong, Keith Man-Chung.(2023).Design, Synthesis and Photophysical Studies of Luminescent Rhodium(III) Complexes in Near-Infrared Region.EUROPEAN JOURNAL OF INORGANIC CHEMISTRY,26(11).

Lu, Jingyi,et al."Design, Synthesis and Photophysical Studies of Luminescent Rhodium(III) Complexes in Near-Infrared Region".EUROPEAN JOURNAL OF INORGANIC CHEMISTRY 26.11(2023).