Crystallization-induced phosphorescence of benzils at room temperature

被引：0

作者：

GONG YongYang ^{[1
]}

TAN YeQiang ^{[2
]}

LI Hong ^{[1
]}

ZHANG YiRen ^{[1
]}

YUAN WangZhang ^{[1
]}

ZHANG YongMing ^{[1
]}

SUN JingZhi ^{[2
]}

TANG Ben Zhong ^{[3
,4
]}

机构：

[1] School of Chemistry and Chemical Engineering,Shanghai Jiao Tong University

[2] Department of Polymer Science and Engineering,Zhejiang University

[3] Department of Chemistry,The Hong Kong University of Science & Technology

[4] HKUST Shenzhen Research

来源：

Science China(Chemistry) | 2013年 / 09期

关键词：

D O I：

暂无

中图分类号：

O625.6 [芳香族含氮化合物];

学科分类号：

摘要：

Efficient room temperature phosphorescence (RTP) is rarely observed in pure organic luminogens. However, we have newly observed that benzil and its derivatives are nonluminescent in solvents and thin layer chromatography (TLC) plates, but become highly phosphorescent in crystal state at room temperature, exhibiting typical crystallization-induced phosphorescence (CIP) characteristics. The CIP phenomenon is ascribed to the restriction of intramolecular rotations in crystals owing to effective intermolecular interactions. Such intermolecular interactions greatly rigidify the molecular conformation and significantly decrease the nonradiative deactivation channels of the triplet excitons, thus giving boosted phosphorescent emission at room temperature.

引用

页码：1183 / 1186

页数：4

共 4 条

[1] Mn-doped ZnS quantum dots/methyl violet nanohybrids for room temperature phosphorescence sensing of DNA[J] HE Yu1 & YAN XiuPing2 1Key Laboratory for the Synthesis and Application of Organic Functional Molecules; Ministry of Education; College of Chemistry and Chemical Engineering; Hubei University; Wuhan 430062; China 2Research Center for Analytical Sciences; College of Chemistry; Nankai University; Tianjin 300071; China Science China(Chemistry) 2011, 08
[2] Synergy between Twisted Conformation and Effective Intermolecular Interactions: Strategy for Efficient Mechanochromic Luminogens with High Contrast[J] Wang Zhang Yuan;Yeqiang Tan;Yongyang Gong;Ping Lu;Jacky W. Y. Lam;Xiao Yuan Shen;Cunfang Feng;Herman H‐Y. Sung;Yawei Lu;Ian D. Williams;Jing Zhi Sun;Yongming Zhang;Ben Zhong Tang Adv. Mater. 2013,
[3] Molecular hosts for triplet emitters in organic light-emitting diodes and the corresponding working principle[J] BaoXiu Mi;ZhiQiang Gao;ZhangJin Liao;Wei Huang;Chin Hsin Chen Science China Chemistry 2010,
[4] Mild Oxidation of Diarylacetylenesto 1;2-Diketones Using Oxone in Trifluoroacetic Acid[J] Jean-Ho Chu;Yen-Ju Chen;Ming-Jung Wu Synthesis 2009,

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