A cyano-bridged copper(II) copper(I) mixed-valence coordination polymer as a source of copper oxide nanoparticles with catalytic activity in C-N, C-O and C-S cross-coupling reactions

作者：Trivedi Manoj^*; Ujjain Sanjeev Kumar; Sharma Raj Kishore; Singh Gurmeet; Kumar Abhinav; Rath Nigam P

来源：New Journal of Chemistry, 2014, 38(9): 4267-4274.

DOI：10.1039/c4nj00829d

A cyano-bridged copper(II) copper(I) mixed valence polymer, namely {(Cu-4(CN)(5)(C5H5N)(4)]}(n) (1), was synthesized and characterized by elemental analysis, IR spectroscopy, thermogravimetric analysis, differential scanning calorimetric analysis, and single crystal X-ray crystallography. Single crystal X-ray studies show that the coordination polymer 1 is linked by the cyanide anions with mu-1 kappa N:2 kappa C bridging modes to the copper centers, generating a two-dimensional (2D) layered network. The coordination polymer 1, upon pyrolyzing, yielded copper oxide nanoparticles, which have been characterized by TEM and powder X-ray diffraction. The catalytic properties of the resulting copper oxide nanoparticles have also been studied in C-N, C-O, and C-S cross-coupling reactions with aryl halides. The C-N, C-O and C-S coupling products were obtained in moderate to good yields (66-90%, 72-98%, and 50-86%), respectively.

• 出版日期2014-9