Details

Autor(en) / Beteiligte

• 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

Titel

Significant Enhancement of C2H2/C2H4 Separation by a Photochromic Diarylethene Unit: A Temperature‐ and Light‐Responsive Separation Switch

Ist Teil von

• Angewandte Chemie International Edition, 2017-06, Vol.56 (27), p.7900-7906

Auflage

International ed. in English

Ort / Verlag

Weinheim: Wiley Subscription Services, Inc

Erscheinungsjahr

2017

Link zum Volltext

Quelle

Alma/SFX Local Collection

Beschreibungen/Notizen

• 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. Photochromic diarylethene units were used to identify C2H2, leading to ultrahigh C2H2/C2H4 selectivity and promising application in C2H2/C2H4 separation at low temperature. The photochromic material can be further used as a temperature‐ and light‐responsive switch for C2H2/C2H4 separation.