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- Title
Significant Enhancement of C<sub>2</sub>H<sub>2</sub>/C<sub>2</sub>H<sub>4</sub> Separation by a Photochromic Diarylethene Unit: A Temperature- and Light-Responsive Separation Switch.
- Authors
Fan, Cong Bin; Le Gong, Le; Huang, Ling; Luo, Feng; Krishna, Rajamani; Yi, Xian Feng; Zheng, An Min; Zhang, Le; Pu, Shou Zhi; Feng, Xue Feng; Luo, Ming Biao; Guo, Guo Cong
- Abstract
A dual temperature- and light-responsive C2H2/C2H4 separation switch in a diarylethene metal-organic framework (MOF) is presented. At 195 K and 100 kPa this MOF shows ultrahigh C2H2/C2H4 selectivity of 47.1, which is almost 21.4 times larger than the corresponding value of 2.2 at 293 K and 100 kPa, or 15.7 times larger than the value of 3.0 for the material under UV at 195 K and 100 kPa. The origin of this unique control in C2H2/C2H4 selectivity, as unveiled by density functional calculations, is due to a guest discriminatory gate-opening effect from the diarylethene unit.
- Subjects
DIARYLETHENE; DIARYL compounds; METAL-organic frameworks; ORGANOMETALLIC compounds; SEPARATION (Technology)
- Publication
Angewandte Chemie, 2017, Vol 129, Issue 27, p8008
- ISSN
0044-8249
- Publication type
Article
- DOI
10.1002/ange.201702484