Title of article :
Synthesis, crystal structure and photophysical properties of a novel Pt(II) complex with multi-functionalized cyclometalating ligand
Author/Authors :
Dongfang Qiu، نويسنده , , Yuquan Feng، نويسنده , , Hongwei Wang، نويسنده , , Xiaoyu Bao، نويسنده , , Yingchen Guo، نويسنده , , Yanxiang Cheng، نويسنده , , Lixiang Wang، نويسنده ,
Issue Information :
روزنامه با شماره پیاپی سال 2010
Pages :
5
From page :
613
To page :
617
Abstract :
A novel Pt(II) complex [(L)PtCl] (HL = 4-{p-[N-(4-(9-carbazole))butyl-N-phenyl] aniline}-6-phenyl-2,2′-bipyridine) has been synthesized and verified by 1H NMR, elemental analysis and X-ray crystallography. The crystal (C44H35N4ClPt, Mr = 850.30) belongs to monoclinic system, space group P2(1)/c, with a = 21.864(6), b = 9.306(3), c = 17.240(5) Å, β = 96.483(6)°, Z = 4, V = 3485.3(16) Å3, DC = 1.620 g/cm3, μ(Mo-Kα) = 4.141 mm− 1, F(000) = 1688, R1 = 0.0591, wR2 = 0.0976. The coordinate geometry of the Pt atom is a distorted square planar configuration. The complex molecules are stacked by a weak π–π interaction in a head-to-tail fashion along the b axis to form 1D chain and the alternating 1D chains are packed to form the 2D lamellar system. The complex shows an intense metal-to-ligand charge transfer (1MLCT) (dπ(Pt) → π*(L)) transitions (ε ∼ 2 × 104 dm3 mol− 1 cm− 1) at 448 nm in the UV–Vis absorption spectrum and a strong phosphorescence at 592 nm in CH2Cl2 solution at room temperature. An intramolecular energy transfer process from the carbazole unit to the arylamine-modified [(C^N^N)PtCl] emissive center exists in the complex.
Keywords :
Platinum (II) , Cyclometalated , crystal structure , Multi-functionalized , Photophysics
Journal title :
Inorganic Chemistry Communications
Serial Year :
2010
Journal title :
Inorganic Chemistry Communications
Record number :
1318481
Link To Document :
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