Synthesis, structures and spectroscopic properties of platinum complexes containing orthometalated 2-phenylpyridine

被引:53
作者
Ghavale, Ninad [1 ]
Wadawale, Amey [1 ]
Dey, Sandip [1 ]
Jain, Vimal K. [1 ]
机构
[1] Bhabha Atom Res Ctr, Div Chem, Bombay 400085, Maharashtra, India
关键词
Orthometalation; Platinum; 2-Phenylpyridine; NMR; X-ray diffraction; C-H ACTIVATION; CRYSTAL-STRUCTURE; PHOTOPHYSICAL PROPERTIES; COORDINATION-COMPOUNDS; OXIDATIVE ADDITION; DIIMINE COMPLEXES; ORGANIC-SYNTHESIS; LIGANDS; PALLADIUM(II); PHOSPHINE;
D O I
10.1016/j.jorganchem.2010.01.035
中图分类号
O61 [无机化学];
学科分类号
070301 ; 081704 ;
摘要
The synthesis, structure and spectroscopy of a series of luminescent orthometalated square planar platinum(II) complexes are reported. Reaction of K(2)PtCl(4) with one mole equivalent of 2-phenylpyridine (ppyH) in 2-ethoxyethanol and water (1:1 ratio) resulted in the formation of chloro-bridged dimeric precursor [Pt(2)(mu-Cl)(2)(ppy)(2)], which on further reactions with various anionic one-, two-and three-atom ancillary ligands, having O/N/S donors, yielded mono-and bi-nuclear platinum(II) complexes. Platinum(III) complexes of composition [Pt(2)Cl(2)(mu-Epy)(2)(ppy)(2)] have been isolated with pyE(-) (E = O or S) ligands. These complexes have been characterized by elemental analysis, NMR ((1)H, (31)P, (195)Pt) and absorption spectroscopy. The complexes [Pt(2)(mu-N(boolean AND)N)(2)(ppy)(2)] (N(boolean AND)N = pyrazole and 3,5-dimethylpyrazole); [Pt(S(boolean AND)S)(ppy)] (S(boolean AND)S = ethylxanthate and diisopropyldithiophosphate); [Pt(2)Cl(2)(mu-Epy)(2)(ppy)(2)] (Epy = 2-pyridinol{Opy} and 2-mercaptopyridine {Spy}) and [PtCl(ppy)(PhNC(Me)NHPh)] have been structurally characterized by X-ray crystallography. (C) 2010 Elsevier B.V. All rights reserved.
引用
收藏
页码:1237 / 1245
页数:9
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