Communication

Structural Modulation of Solid-State Emission of 2,5-Bis(trialkylsilylethynyl)-3,4-diphenylsiloles†

  1. Zujin Zhao Dr.1,
  2. Zhiming Wang2,
  3. Ping Lu Dr.1,
  4. Carrie Y. K. Chan1,
  5. Dandan Liu2,
  6. Jacky W. Y. Lam Dr.1,
  7. Herman H. Y. Sung Dr.1,
  8. Ian D. Williams Prof. Dr.1,
  9. Yuguang Ma Prof. Dr.2,
  10. Ben Zhong Tang Prof. Dr.1

Article first published online: 4 SEP 2009

DOI: 10.1002/anie.200903698

Issue

Angewandte Chemie International Edition

Angewandte Chemie International Edition

Volume 48, Issue 41, pages 7608–7611, September 28, 2009

Additional Information

How to Cite

Zhao, Z., Wang, Z., Lu, P., Chan, Carrie Y. K., Liu, D., Lam, Jacky W. Y., Sung, Herman H. Y., Williams, Ian D., Ma, Y. and Tang, B. (2009), Structural Modulation of Solid-State Emission of 2,5-Bis(trialkylsilylethynyl)-3,4-diphenylsiloles. Angew. Chem. Int. Ed., 48: 7608–7611. doi: 10.1002/anie.200903698

Author Information

  1. 1

    Department of Chemistry, The Hong Kong University of Science & Technology, Clear Water Bay, Kowloon, Hong Kong (China), Fax: (+852) 2358-1594 http://home.ust.hk/∼tangbenz/

  2. 2

    State Key Laboratory of Supramolecular Structure and Materials, Jilin University, Changchun 130012 (China)

  1. †

    We thank the Research Grants Council of Hong Kong (603008 and 601608), the Ministry of Science & Technology of China (2009CB623605) and the National Science Foundation of China (20634020). B.Z.T. is grateful to Cao Gaungbiao Foundation of Zhejiang University.

Publication History

  1. Issue published online: 23 SEP 2009
  2. Article first published online: 4 SEP 2009
  3. Manuscript Received: 7 JUL 2009

Funded by

  • Research Grants Council of Hong Kong. Grant Numbers: 603008, 601608
  • Ministry of Science & Technology of China. Grant Number: 2009CB623605
  • National Science Foundation of China. Grant Number: 20634020

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Keywords:

  • aggregation-induced emission;
  • fluorescence;
  • luminescence;
  • siloles;
  • structure–activity relationships
Thumbnail image of graphical abstract

Solidarity means strength: In new silole luminogens, the solid aggregates are stronger emitters than isolated molecules. The solid-state emission is tunable by varying molecular structures of the luminogens. Increasing bulkiness of the substituents weakens intermolecular interactions and restricts intramolecular rotations, leading to a blue shift in emission color and a great increase in emission efficiency (see examples in picture).

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