C. Bin Fan
L. Le Gong
- Significant Enhancement of C2H2/C2H4 Separation by a PhotochromicDiarylethene Unit: A Temperature- and Light-Responsive SeparationSwitch
- Angewandte Chemie, International Edition
- Volume | Issue number
- 56 | 27
- Pages (from-to)
- Number of pages
- Document type
- Faculty of Science (FNWI)
- Van 't Hoff Institute for Molecular Sciences (HIMS)
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.
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