Multiple ligand-based emissions from a platinum(II) terpyridine complex attached to pyrene

被引：126

作者：

Michalec, JF ^{[1
]}

Bejune, SA ^{[1
]}

McMillin, DR ^{[1
]}

机构：

[1] Purdue Univ, Dept Chem, W Lafayette, IN 47907 USA

来源：

INORGANIC CHEMISTRY | 2000年 / 39卷 / 13期

关键词：

D O I：

10.1021/ic000304m

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

Attaching an electron-rich aryl substituent at the 4' position of the trpy ligand in Pt(trpy)Cl+ endows the low-lying excited state with intraligand charge-transfer (ILCT) character, enhances the emission intensity, extends the excited-state lifetime, and inhibits exciplex quenching by Lewis bases. When pyrene is the substituent, the complex exhibits singlet- and triplet-state emission and the lifetime extends to 64 mu s in room-temperature dichloromethane solution.

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页码：2708 / +

页数：3

相关论文

共 16 条

[1] Photoinduced processes in 4′-(9-anthryl)-2,2′: 6′,2"-terpyridine, its protonated forms and Zn(II), Ru(II) and Os(II) complexes [J].

Albano, G ;

Balzani, V ;

Constable, EC ;

Maestri, M ;

Smith, DR .

INORGANICA CHIMICA ACTA, 1998, 277 (02) :225-231

[2] STUDIES OF THE ROOM-TEMPERATURE ABSORPTION AND EMISSION-SPECTRA OF [PT(TRPY)X]+ SYSTEMS [J].

ALDRIDGE, TK ;

STACY, EM ;

MCMILLIN, DR .

INORGANIC CHEMISTRY, 1994, 33 (04) :722-727

[3] Luminescence properties of salts of the [Pt(4′Ph-terpy)Cl]+ chromophore:: crystal structure of the red form of [Pt(4′-Ph-terpy)Cl]BF4 (4′Ph-terpy=4′-phenyl-2,2′:6′,2"-terpyridine) [J].

Büchner, R ;

Cunningham, CT ;

Field, JS ;

Haines, RJ ;

McMillin, DR ;

Summerton, GC .

JOURNAL OF THE CHEMICAL SOCIETY-DALTON TRANSACTIONS, 1999, (05) :711-717

[4] EVIDENCE FOR STRONG MIXING BETWEEN THE LC AND MLCT EXCITED-STATES IN BIS(2-PHENYLPYRIDINATO-C2,N') (2,2'-BIPYRIDINE)IRIDIUM(III) [J].

COLOMBO, MG ;

HAUSER, A ;

GUDEL, HU .

INORGANIC CHEMISTRY, 1993, 32 (14) :3088-3092

[5] Remarkable substituent effects on the photophysics of Pt(4′-X-trpy)Cl+ systems (trpy = 2,2′; 6′,2"-terpyridine) [J].

Crites, DK ;

Cunningham, CT ;

McMillin, DR .

INORGANICA CHIMICA ACTA, 1998, 273 (1-2) :346-353

[6]

CRITES DK, IN PRESS COORD CHEM

[7] Effects of intraligand electron delocalization, steric tuning, and excited-state vibronic coupling on the photophysics of aryl-substituted bipyridyl complexes of Ru(II) [J].

Damrauer, NH ;

Boussie, TR ;

Devenney, M ;

McCusker, JK .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1997, 119 (35) :8253-8268

[8] A ruthenium(II) tris(2,2′-bipyridine) derivative possessing a triplet lifetime of 42 μs [J].

Harriman, A ;

Hissler, M ;

Khatyr, A ;

Ziessel, R .

CHEMICAL COMMUNICATIONS, 1999, (08) :735-736

[9] BINDING OF PLATINUM(II) INTERCALATION REAGENTS TO DEOXYRIBONUCLEIC-ACID - DEPENDENCE ON BASE-PAIR COMPOSITION, NATURE OF THE INTERCALATOR, AND IONIC-STRENGTH [J].

HOWEGRANT, M ;

LIPPARD, SJ .

BIOCHEMISTRY, 1979, 18 (26) :5762-5769

[10] Excited state properties of quinoxaline-substituted platinum 1,2-enedithiolates [J].

Kaiwar, SP ;

Vodacek, A ;

Blough, NV ;

Pilato, RS .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1997, 119 (14) :3311-3316