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Sc2(pydc)2 unit based 1D, 2D and 3D metal–organic frameworks as heterogeneous Lewis acid catalysts for cyanosilylation

Authors :
Yu Cao
Ziqian Zhu
Xiaobo Chen
Li Wang
Jianing Xu
Jiayin Sun
Yong Fan
Source :
Dalton Transactions. 44:1942-1947
Publication Year :
2015
Publisher :
Royal Society of Chemistry (RSC), 2015.

Abstract

Three scandium metal-organic frameworks (Sc-MOFs), [Sc(pydc)(Hpydc)(H2O)]·H2O (1), [Sc2(pydc)3(H2O)4]·5H2O (2) and [Sc(pydc)(H2O)(NO3)] (3) with similar Sc2(pydc)2 building unit were prepared by using 2,3-pyridinedicarboxylic acid (H2pydc) ligand under hydrothermal conditions. Compound 1 exhibits a ladder-shaped chain with Sc2(pydc)2 units, which further construct a supramolecular characteristic with water molecules via hydrogen bond. Compound 2 features a waved layer made up of pydc(2-) ligands and two types of crystallographically different Sc(III) ions, among which Sc2 and pydc(2-) ligands constructed the Sc2(pydc)2 units. In compound 3, left and right helixes were alternately linked by the Sc2(pydc)2 units forming a hexagonal network with nbo-a topology. All the prepared compounds present effective heterogeneous Lewis acid catalytic functionality for the cyanosilylation of aldehyde.

Details

ISSN :
14779234 and 14779226
Volume :
44
Database :
OpenAIRE
Journal :
Dalton Transactions
Accession number :
edsair.doi...........2f8bf2c86381ee68c9248d0d297babaa
Full Text :
https://doi.org/10.1039/c4dt03221g