Significant Enhancement of C 2 H 2 /C 2 H 4 Separation by a Photochromic Diarylethene Unit: A Temperature- and Light-Responsive Separation Switch.

Autor: Fan CB; Jiangxi Key Laboratory of Organic Chemistry, Jiangxi Science and Technology Normal University, Nanchang, 330013, China., Le Gong L; School of Biology, Chemistry and Material Science, East China University of Technology, NanChang, Jiangxi, 344000, China., Huang L; State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics, National Center for Magnetic Resonance in Wuhan, Wuhan Institute of Physics and Mathematics, The Chinese Academy of Sciences, Wuhan, 430071, China., Luo F; School of Biology, Chemistry and Material Science, East China University of Technology, NanChang, Jiangxi, 344000, China., Krishna R; Van't Hoff Institute for Molecular Sciences, University of Amsterdam, Science Park 904, 1098 XH, Amsterdam, The Netherlands., Yi XF; State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics, National Center for Magnetic Resonance in Wuhan, Wuhan Institute of Physics and Mathematics, The Chinese Academy of Sciences, Wuhan, 430071, China., Zheng AM; State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics, National Center for Magnetic Resonance in Wuhan, Wuhan Institute of Physics and Mathematics, The Chinese Academy of Sciences, Wuhan, 430071, China., Zhang L; School of Biology, Chemistry and Material Science, East China University of Technology, NanChang, Jiangxi, 344000, China., Pu SZ; Jiangxi Key Laboratory of Organic Chemistry, Jiangxi Science and Technology Normal University, Nanchang, 330013, China., Feng XF; School of Biology, Chemistry and Material Science, East China University of Technology, NanChang, Jiangxi, 344000, China., Luo MB; School of Biology, Chemistry and Material Science, East China University of Technology, NanChang, Jiangxi, 344000, China., Guo GC; State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences Fuzhou, Fujian, 350002, China.
Jazyk: angličtina
Zdroj: Angewandte Chemie (International ed. in English) [Angew Chem Int Ed Engl] 2017 Jun 26; Vol. 56 (27), pp. 7900-7906. Date of Electronic Publication: 2017 Apr 24.
DOI: 10.1002/anie.201702484
Abstrakt: A dual temperature- and light-responsive C 2 H 2 /C 2 H 4 separation switch in a diarylethene metal-organic framework (MOF) is presented. At 195 K and 100 kPa this MOF shows ultrahigh C 2 H 2 /C 2 H 4 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 C 2 H 2 /C 2 H 4 selectivity, as unveiled by density functional calculations, is due to a guest discriminatory gate-opening effect from the diarylethene unit.
(© 2017 Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim.)
Databáze: MEDLINE
Externí odkaz: