Highly selective adsorption of ethylene over ethane in a MOF featuring the combination of open metal site and π-complexation

Yiming Zhang; Baiyan Li; Rajamani Krishna; Zili Wu; Dingxuan Ma; Zhan Shi; Tony Pham; Katherine Forrest; Brian Space; Shengqian Ma

doi:10.1039/c4cc09774b

Highly selective adsorption of ethylene over ethane in a MOF featuring the combination of open metal site and π-complexation

Chem Commun (Camb). 2015 Feb 14;51(13):2714-7. doi: 10.1039/c4cc09774b.

Authors

Yiming Zhang¹, Baiyan Li, Rajamani Krishna, Zili Wu, Dingxuan Ma, Zhan Shi, Tony Pham, Katherine Forrest, Brian Space, Shengqian Ma

Affiliation

¹ Department of Chemistry, University of South Florida, 4202 E. Fowler Avenue, Tampa, FL 33620, USA. sqma@usf.edu libaiyan@gmail.com.

PMID: 25575193
DOI: 10.1039/c4cc09774b

Abstract

The introduction of the combination of open metal site (OMS) and π-complexation into MOF has led to very high ethylene-ethane adsorption selectivity at 318 K, as illustrated in the context of MIL-101-Cr-SO3Ag. The interactions with ethylene from both OMS and π-complexation in MIL-101-Cr-SO3Ag have been investigated by in situ IR spectroscopic studies and computational calculations, which suggest that π-complexation contributes dominantly to the high ethylene-ethane adsorption selectivity.