Double platinum (II) pyridine complex of organic photoelectric materials, synthetic method and applications

A synthesis method and technology of complexes, which are applied in the fields of luminescent materials, organic chemistry, chemical instruments and methods, etc., can solve the problems of low luminescence quantum yield restriction and short excited state lifetime.

Inactive Publication Date: 2009-10-07
NANJING UNIV OF TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the short excited state lifetime and low luminescence quantum yield restrict the application of platinum(II) pyridine complexes in the field of organic optoelectronic materials.

Method used

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  • Double platinum (II) pyridine complex of organic photoelectric materials, synthetic method and applications
  • Double platinum (II) pyridine complex of organic photoelectric materials, synthetic method and applications
  • Double platinum (II) pyridine complex of organic photoelectric materials, synthetic method and applications

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0015] Add 0.1482g (0.5mmol) of 4,6-diphenyl-2,2'-bipyridine, 0.2003g (0.5mmol) of potassium platinite chloride, 20mL of acetonitrile, and 20mL of distilled water into a 100mL round bottom flask. Magnetic stirring, heating in an oil bath, reflux for 48 hours, distilled off the solvent under reduced pressure, added 5 mL of dichloromethane to dissolve the product, filtered, added diethyl ether to the filtrate, and precipitated orange solid 4,6-diphenyl-2,2'-di Pyridinium chloride (II) (Pt), the yield is 70.6%. 1 H NMR (DMSO-d 6 , 300MHz) δ: 7.11-7.18(m, 2H), 7.51-7.54(d, 1H), 7.60-7.63(m, 3H), 7.84-7.86(d, 1H), 7.93-7.97(t, 1H), 8.12-8.15(t, 2H), 8.31(s, 1H), 8.37-8.42(m, 1H), 8.54-8.55(d, 1H), 8.77-8.79(d, 1H), 8.94-8.95(d, 1H) ).ESI-MS: The calculated value is [C 22 h 15 N 2 Pt] + , 502.4; the measured value is 601.9. Elemental analysis: the calculated value is C, 49.12; H, 2.81; N, 5.21. The measured value is C, 49.05; H, 2.78; N, 5.01. UV absorption spectrum see attac...

Embodiment 2

[0017] 0.5379g (1.0mmol) of 4,6-diphenyl-2,2'-bipyridylplatinum chloride (II), 0.1282g (0.5mmol) of N,N'-bisisonicotinylmethylenediamine , 500mL of acetonitrile and 500mL of distilled water were added to a 2000mL round bottom flask. Magnetic stirring, reacted at 25°C for 48 hours, distilled off the solvent under reduced pressure, added 25mL of dichloromethane to dissolve the product, filtered, added diethyl ether to the filtrate, and precipitated orange solid bisplatinum (II) pyridine complex dichloride μ-(N,N '-Bisisonicotinylmethylenediamine)bis[(4,6-diphenyl-2,2'-bipyridyl)platinum(II)]A 0.45g, the yield was 68.2%.

Embodiment 3

[0019] 0.5379 g (1.0 mmol) of 4,6-diphenyl-2,2'-bipyridine chloride platinum (II) complex, 0.1351 g of N,N'-bisisonicotinyl-1,2-ethylenediamine g (0.5 mmol), 500 mL of acetonitrile, and 500 mL of distilled water were added to a 2000 mL round bottom flask. Magnetic stirring, reacted at 25°C for 48 hours, distilled off the solvent under reduced pressure, added 25mL of dichloromethane to dissolve the product, filtered, added diethyl ether to the filtrate, and precipitated orange solid bisplatinum (II) pyridine complex dichloride μ-(N,N '-Bisonicotinoyl-1,2-ethylenediamine)bis[(4,6-diphenyl-2,2'-bipyridyl)platinum(II)]B 0.41g, yield 61.5%. 1 H NMR (DMSO-d 6 , 300MHz) δ: 3.47(s, 4H), 7.06-7.17(m, 4H), 7.50(d, 2H), 7.59-7.61(m, 6H), 7.74(d, 4H), 7.81(d, 2H) , 7.91(t, 2H), 8.10-8.13(m, 4H), 8.25(s, 2H), 8.36(t, 2H), 8.50(s, 2H), 8.71-8.75(m, 6H), 8.90(d , 4H).ESI-MS: The calculated value is [C 62 h 52 N 8 o 2 Pt 2 ] 2+ , 637.6; found value is 637.7. Elemental analysis: calcu...

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Abstract

The invention provides a double platinum (II) pyridine complex, a synthetic method and applications thereof. In a structural formula (a) of the double platinum (II) pyridine complex, X is bipyridine connected by linking groups. The invention adopts 4, 6-diphenyl 2, 2'-bipyridyl as ligand which reacts with potassium chloroplatinite, so as to synthesize 4, 6-diphenyl 2, 2'-bipyridyl platinum chloride (II), and X is used as bridging ligand to synthesize the double platinum (II) pyridine complex. The compound can be used as the organic photoelectric materials.

Description

technical field [0001] The invention belongs to the field of organic photoelectric materials, and in particular relates to a double platinum (II) pyridine complex, a synthesis method and the application of the compound in organic photoelectric materials. technical background [0002] Due to the unique optical, electrical, and magnetic properties of metal ions, metal-organic complexes have many specific physical properties that simple organic molecules cannot have. The research on metal-organic complexes provides a broader perspective for the development of new photoelectric materials. Expansion capacity. Among them, platinum(II) pyridine complexes play an increasingly important role. It is mainly used in many fields such as electroluminescence, molecular probes, biological probes, nonlinear optics and photocatalysis [Lai Siu-Wai, Chan Michael Chi-Wang, et al.Probing d 8 -d 8 interactions in luminescent mono- and binuclear cyclometalated platinum(II) complexes of 6-phenyl...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07F15/00C07D213/02C09K11/06
Inventor 朱红军程炜李玉峰宋广亮刘山
Owner NANJING UNIV OF TECH
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