1.
Angew Chem Int Ed Engl
; 56(27): 7900-7906, 2017 06 26.
Artigo
em Inglês
| MEDLINE
| ID: mdl-28436067
RESUMO
A dual temperature- and light-responsive C2 H2 /C2 H4 separation switch in a diarylethene metal-organic framework (MOF) is presented. At 195â K and 100â kPa this MOF shows ultrahigh C2 H2 /C2 H4 selectivity of 47.1, which is almost 21.4 times larger than the corresponding value of 2.2 at 293â K and 100â kPa, or 15.7 times larger than the value of 3.0 for the material under UV at 195â K and 100â kPa. The origin of this unique control in C2 H2 /C2 H4 selectivity, as unveiled by density functional calculations, is due to a guest discriminatory gate-opening effect from the diarylethene unit.