Pacifichem Congress rescheduled to December 16 – 21, 2021: Information on Pacifichem 2020 symposium “Photofunctions of Soft Crystals Constructed with Coordination Compounds” (#254)

Dec 21,
Dec 16,

Pacifichem Congress rescheduled to December 16 – 21, 2021

* The Abstract Submission Deadline has now been extended to Friday, June 1 at 24:00 (United States Eastern Time).

A symposium entitled Photofunctions of Soft Crystals Constructed with Coordination Compounds (#254) in Pacifichem 2020 will be held on December 16-21, 2021 in Honolulu, Hawaii.

We call for oral and poster presentations.
Please submit your abstract through the Pacifichem 2020 website (

We look forward to your application.


Photofunctions of Soft Crystals Constructed with Coordination Compounds (#254)

Date:  (Oral Session): December 19-20, 2021
Hilton Hawaiian Village Waikiki Beach, Waikiki, Hawaii


Masako Kato (JP)
Vivian W.-W. Yam (CN)
Daniel Leznoff (CA)
Kazuyuki Ishii (JP)
Miki Hasegawa (JP)


Invited Speakers:
Luisa DeCola (Univ. Strasbourg)
Hajime Ito (Hokkaido Univ.)
Jagadese J. Vittal (Nat. Univ. Singapore)
Keith Man-Chung Wong (SUSTec)
Daniel Leznoff (Simon-Fraser Univ.)
John F. Corrigan (Univ. Western Ontario)
Wenfang Sun (North Dakota State Univ.)
Mir Wais Hosseini (Univ. Strasbourg)
Norihisa Kobayashi (Chiba Univ.)
Miki Hasegawa (Aoyama Gakuin Univ.)
Yu-Wu Zhong (Chinese Academy Sci.)


This symposium focuses on photofunctions and optical properties of crystalline materials constructed with coordination compounds, and their dynamic changes by external stimuli. These crystalline materials are called “Soft Crystals.” Soft crystals respond to macroscopic gentle stimuli such as vapor exposure and mechanical force at around room temperature, exhibiting visually remarkable changes in luminescence and optical properties. Coordination compounds must be the most promising building blocks for soft crystals because diverse weak interactions such as coordination bonds, hydrogen bonds, metal-metal interactions, halogen -halogen interactions, and ligand π-π and CH-π interactions can be applied. For example, the luminescence color of Pt(II) complexes can change remarkably by a slight change in the stacking structure induced by weak external stimuli described above. Through the scientific discussion, we will also prospect the application of “Soft Crystals” as new materials beyond conventional hard crystals and/or soft matters.