Fluorescence excitation spectra of jet-cooled 4-(diisopropylamino)benzonitrile and related compounds

被引：37

作者：

Daum, R

Druzhinin, S

Ernst, D

Rupp, L

Schroeder, J

Zachariasse, KA

机构：

[1] Max Planck Inst Biophys Chem, Abt Spektroskopie & Photochem Kinet, D-37077 Gottingen, Germany

[2] Univ Gottingen, Inst Phys Chem, D-37077 Gottingen, Germany

来源：

CHEMICAL PHYSICS LETTERS | 2001年 / 341卷 / 3-4期

关键词：

D O I：

10.1016/S0009-2614(01)00365-7

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Fluorescence excitation spectra of 4-(diisopropylamino)benzonitrile (DIA BN) and 4-(dimethylamino)benzonitrile (DMABN) in thermal vapour and seeded jet expansions are compared. The spectrum of jet-cooled DIABN shows an intense 0-0-transition at 31751.8 cm(-1). The spectrum collapses at excess excitation energies above 800 cm(-1), indicating the presence of an efficient non-radiative decay channel. In the gas phase, fluorescence emission of DIABN occurs from the intramolecular charge transfer (ICT) state. The non-radiative decay channel, therefore, is attributed to rapid ICT in the isolated molecule. The related compounds 4-(methylamino)-3,5-himethylbenzonitrile (MHD), 4-(azetidinyl)-3,5-dimethylbenzonitrile (M4D), and 4-(dimethylamino)-3,5-dimethylbenzonitrile (MMD) in the jet show extremely weak and structureless emission. (C) 2001 Elsevier Science B.V. All rights reserved.

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页码：272 / 278

页数：7

相关论文

共 23 条

[1] SPECTROSCOPY AND DYNAMICS OF JET-COOLED 4-DIMETHYLAMINO-4'-CYANO STILBENE IN THE S-1 STATE [J].

DAUM, R ;

HANSSON, T ;

NORENBERG, R ;

SCHWARZER, D ;

SCHROEDER, J .

CHEMICAL PHYSICS LETTERS, 1995, 246 (06) :607-614

[2] PHOTOCHEMISTRY IN JET-COOLED ANILINE DERIVATIVES [J].

DEDONDERLARDEUX, C ;

JOUVET, C ;

MARTRENCHARD, S ;

SOLGADI, D ;

MCCOMBIE, J ;

HOWELLS, BD ;

PALMER, TF ;

SUBARICLEITIS, A ;

MONTE, C ;

RETTIG, W ;

ZIMMERMANN, P .

CHEMICAL PHYSICS, 1995, 191 (1-3) :271-287

[3] Dual fluorescence and fast intramolecular charge transfer with 4-(diisopropylamino) benzonitrile in alkane solvents [J].

Demeter, A ;

Druzhinin, S ;

George, M ;

Haselbach, E ;

Roulin, JL ;

Zachariasse, KA .

CHEMICAL PHYSICS LETTERS, 2000, 323 (3-4) :351-360

[4] 4-N,N-DIMETHYLAMINOBENZONITRILE - THE ABSENCE OF A-STAR FLUORESCENCE UNDER JET-COOLED CONDITIONS [J].

GIBSON, EM ;

JONES, AC ;

PHILLIPS, D .

CHEMICAL PHYSICS LETTERS, 1987, 136 (05) :454-459

[5]

GRABOWSKI ZR, 1979, NOUV J CHIM, V3, P443

[6] CONFORMATIONAL-CHANGES UPON S1[-S0 EXCITATION IN 4-DIMETHYLAMINOBENZONITRILE AND SOME OF ITS CHEMICAL ANALOGS [J].

GRASSIAN, VH ;

WARREN, JA ;

BERNSTEIN, ER ;

SECOR, HV .

JOURNAL OF CHEMICAL PHYSICS, 1989, 90 (08) :3994-3999

[7] AN INVESTIGATION OF THE FLUORESCENCE BEHAVIOR OF 4-(N,N-DIMETHYLAMINO) BENZONITRILE COOLED IN A SUPERSONIC JET [J].

HOWELL, R ;

PETEK, H ;

PHILLIPS, D ;

YOSHIHARA, K .

CHEMICAL PHYSICS LETTERS, 1991, 183 (3-4) :249-253

[8] FLUORESCENCE OF JET-COOLED DIMETHYLAMINO BENZONITRILE, ITS AGGREGATES AND SOLVATED COMPLEXES [J].

HOWELL, R ;

PHILLIPS, D ;

PETEK, H ;

YOSHIHARA, K .

CHEMICAL PHYSICS, 1994, 188 (2-3) :303-316

[9] LASER-INDUCED FLUORESCENCE SPECTROSCOPY AND STRUCTURE OF MICROSOLVATED MOLECULAR CLUSTERS .2. LASER-INDUCED FLUORESCENCE SPECTROSCOPY OF JET-COOLED ETHYL 4-AMINOBENZOATE, METHYL 4-AMINOBENZOATE, 4-AMINOBENZONITRILE AND THEIR DIMETHYLAMINO AND PYRROLIDINO DERIVATIVES [J].

HOWELLS, BD ;

MCCOMBIE, J ;

PALMER, TF ;

SIMONS, JP ;

WALTERS, A .

JOURNAL OF THE CHEMICAL SOCIETY-FARADAY TRANSACTIONS, 1992, 88 (18) :2595-2601

[10] 4-(N,N-DIMETHYLAMINO)BENZONITRILE SOLVATED BY A POLAR MOLECULE - STRUCTURAL DEMAND FOR CHARGE-TRANSFER STATE FORMATION [J].

KOBAYASHI, T ;

FUTAKAMI, M ;

KAJIMOTO, O .

CHEMICAL PHYSICS LETTERS, 1986, 130 (1-2) :63-66