The synthesis, structure, topology and catalytic application of a novel cubane-based copper(II) metal-organic framework derived from a flexible amido tripodal acid
Journal article, 2015

A novel chiral metal-organic framework, [Cu-4(HL)(2)(H2O)(4)(MeO)(4)](n) (1), has been successfully synthesized from a tripodal flexible ligand (2S, 2'S, 2 '' S)- 2,2', 2 ''-(benzenetricarbonyltris(azanediyl)) tripropanoic acid (H3L). Compound 1 was characterized by IR and X-ray powder diffraction analysis. The structure was determined by X-ray single crystal diffraction analysis revealing that 1 possesses a 3D network, featuring a tetranuclear cubane-type secondary building block [Cu-4(MeO)(4)](4+), formed via the connection of four metal ions to four methoxide ions. These secondary building blocks are linked by four different HL2- ligands to construct a porous three dimensional framework of the dia topology with one-dimensional channels. Compound 1 also acts as a heterogeneous catalyst for the diastereoselective nitroaldol (Henry) reaction, providing high yields (up to 91%) and good diastereoselectivities under ambient conditions. This catalyst can be recycled without significant loss of activity.

Author

Anirban Karmakar

Chalmers, Chemistry and Chemical Engineering, Chemistry and Biochemistry, Physical Chemistry

C. L. Oliver

University of Cape Town

S. Roy

Instituto Superior Tecnico

Lars Öhrström

Chalmers, Chemistry and Chemical Engineering, Chemistry and Biochemistry, Physical Chemistry

Dalton Transactions

1477-9226 (ISSN) 1477-9234 (eISSN)

Vol. 44 22 10156-10165

Subject Categories

Inorganic Chemistry

Areas of Advance

Nanoscience and Nanotechnology (2010-2017)

Materials Science

DOI

10.1039/c4dt03087g

More information

Latest update

6/20/2018