Indexed by:
Abstract:
The design and synthesis of metal-organic frameworks (MOFs) enclosed with multiple catalytic active sites is favorable for cooperative catalysis, but is is still challenging. Herein, we developed a sequential postsynthetic ionization and metalation strategy to prepare bifunctional multivariate Zr-MOFs incorporating zinc porphyrin and imidazolium functionalities. Using this facile strategy, tetratopic [5,10,15,20-tetrakis(4-carboxypheny1)porphyrinato]zinc(II) (ZnTCPP) ligands were successfully installed into the cationic Zr-MOF to obtain ZnTCPPC(Br(-))EtimUiO-66. These MTV-MOFs, including TCPPCIm-UiO-66, TCPPC(Br-)Etim-UiO-66, and ZnTCPPC(Br-)Etim-UiO-66, were well characterized and used in CO, capture and conversion into cyclic carbonate from allyl glycidyl ether and CO, under cocatalyst-free and 1 bar CO, pressure conditions. It was found that the structural features and CO, affinity properties of these MTV-MOFs can be tuned by introducing imidazolium groups or doping zinc sites. Additionally, ZnTCPPC(Br-)Etim-UiO-66 exhibited enhanced catalytic activities compared to other MTVMOFs herein for obtaining the 3-allyloxy-1,2-proplyene carbonate product, which was attributed to the cooperative effect of Zn2+ sites and Br ions in this microporous ionic MTV-MOF. ZnTCPPC(Br-)Etim-UiO-66 can be recycled easily and used at least three times.
Keyword:
Reprint 's Address:
Email:
Version:
Source :
INORGANIC CHEMISTRY
ISSN: 0020-1669
Year: 2018
Issue: 5
Volume: 57
Page: 2584-2593
4 . 8 5
JCR@2018
4 . 3 0 0
JCR@2023
ESI Discipline: CHEMISTRY;
ESI HC Threshold:209
JCR Journal Grade:1
CAS Journal Grade:1
Cited Count:
WoS CC Cited Count: 0
SCOPUS Cited Count: 154
ESI Highly Cited Papers on the List: 4 Unfold All
WanFang Cited Count:
Chinese Cited Count:
30 Days PV: 0
Affiliated Colleges: