Syntheses, crystal structures and phosphorescence properties of cyclometalated iridium(III) bis(pyridylbenzaldehyde) complexes with dithiolate ligands

被引：1

作者：

Wang, Xue-Mei ^{[1
]}

Qiang, Jia-Yan ^{[1
]}

Jia, Ai-Quan ^{[1
]}

Tong, Bihai ^{[1
]}

Zhang, Qian-Feng ^{[1
]}

机构：

[1] Anhui Univ Technol, Inst Mol Engn & Appl Chem, Maanshan 243002, Anhui, Peoples R China

来源：

ZEITSCHRIFT FUR NATURFORSCHUNG SECTION B-A JOURNAL OF CHEMICAL SCIENCES | 2017年 / 72卷 / 12期

关键词：

crystal structure; cyclometalation; dithiolate; iridium(III); phosphorescence; ANCILLARY LIGANDS; ELECTROLUMINESCENCE; LUMINESCENCE; PHOTOPHYSICS; CHEMOSENSOR; HG2+;

D O I：

10.1515/znb-2017-0105

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

The synthesis of three neutral bis-cyclometalated iridium(III) complexes [Ir(pba)(2)(S<^>S)] (pbaH = 4-(2-pyridyl) benzaldehyde; S<^>S = Et-2 NCS2- (1), (PrOCS2-)-Pr-i (2), ((PrO)-Pr-n)(2)PS2- (3)) from [{Ir(mu-Cl)(pba)(2)}(2)] and the corresponding sodium or potassium dithiolates in methanol-dichloromethane is described. The composition of complexes 1-3 is discussed on the basis of H-1 NMR, C-13 NMR, IR, and mass spectroscopy, and the crystal structures of 1 and 3 were determined by X-ray crystallography. The absorption and emission spectra show that the [Ir(pba)(2)(S<^>S)] complexes may be effective candidates as green-emitting phosphorescent materials. The stability of the three cyclometalated iridium(III) complexes towards different transition metal ions was also investigated in acetonitrile-water solvent.

引用

页码：941 / 946

页数：6

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