Reversible luminescence thermochromism of dibenzoyl (methanato)boron difluoride

被引：19

作者：

Mirochnik, AG ^{[1
]}

Fedorenko, EV ^{[1
]}

Bukvetskii, BV ^{[1
]}

Karasev, VE ^{[1
]}

机构：

[1] Russian Acad Sci, Inst Chem, Far E Branch, Vladivostok 690022, Russia

来源：

RUSSIAN CHEMICAL BULLETIN | 2005年 / 54卷 / 04期

基金：

俄罗斯基础研究基金会;

关键词：

dibenzoyl(methanato)boron difluoride; beta-diketonates; fluorescence; luminescence thermochromism; stacking factor;

D O I：

10.1007/s11172-005-0360-y

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Reversible luminescence thermochromism of dibenzoyl(methanato)boron difluoride was found. A substantial hypsochromic shift of the luminescence band maximum (60 nm) with a temperature decrease from 300 to 77 K was observed, and the luminescence color changed from green to blue. A considerable decrease (by 0.386 angstrom) in the unit cell parameters along the c axis was detected by X-ray diffractometry when the temperature of the crystal decreased from 293 to 123 K. Shortening of the distances between the planes of adjacent molecules (stacking factor) weakens the interaction between the dimers and enhances the monomeric and excimeric luminescence.

引用

页码：1060 / 1062

页数：3

共 12 条

[1]

BARASHKOV NN, 1993, USP KHIM+, V62, P579

[2] Computer simulation of band shapes in electronic absorption spectra of dimers of organic dyes [J].

Burshtein, KY ;

Bagaturyants, AA ;

Alfimov, MV .

RUSSIAN CHEMICAL BULLETIN, 1995, 44 (09) :1637-1642

[3] MOLECULAR-INTERACTIONS OF DIBENZOYLMETHANATOBORON DIFLUORIDE (DBMBF2) IN THE EXCITED AND GROUND-STATES IN SOLUTION [J].

CHOW, YL ;

CHENG, XN ;

JOHANSSON, CI .

JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY, 1991, 57 (1-3) :247-255

[4] Excimer formation in pyrene crystals [J].

Daubler, H ;

Yudson, VI ;

Reineker, P .

JOURNAL OF LUMINESCENCE, 1997, 72-4 :909-911

[5] Reversible luminescence thermochromism in dipotassiumsodium tris[dicyanoargentate(I)] and the role of structural phase transitions [J].

Fischer, P ;

Lucas, B ;

Omary, MA ;

Larochelle, CL ;

Patterson, HH .

JOURNAL OF SOLID STATE CHEMISTRY, 2002, 168 (01) :267-274

[6] Stacking of six-membered aromatic rings in crystals [J].

Glówka, ML ;

Martynowski, D ;

Kozlowska, K .

JOURNAL OF MOLECULAR STRUCTURE, 1999, 474 :81-89

[7]

KARASEV VE, 1986, ZH NEORG KHIM+, V31, P869

[8]

Kim JH, 1999, DYES PIGMENTS, V41, P183

[9] Crystal structures and excimer fluorescence of anisoylbenzoylmethanatoboron and dianisoylmethanatoboron difluorides [J].

Mirochnik, AG ;

Bukvetskii, BV ;

Fedorenko, EV ;

Karasev, VE .

RUSSIAN CHEMICAL BULLETIN, 2004, 53 (02) :291-296

[10] Crystal structure and excimer fluorescence of some benzoylacetonatoboron difluorides: Stacking factor [J].

Mirochnik, AG ;

Bukvetskii, BV ;

Gukhman, EV ;

Karasev, VE .

JOURNAL OF FLUORESCENCE, 2003, 13 (02) :157-162

← 1 2 →