Novel 3-dimensional sixfold interpenetrating diamondoid networks of copper(I) coordination polymers of polypyridyl ligands – Syntheses, characterization and crystal structures

Two new coordination polymers [Cu(L1)2]n(ClO4)n·2nH2O (1), [Cu(L2)2]n(ClO4)n·2nH2O (2) of polydentate imine/pyridyl ligands, L1 and L2 with Cu(I) ion have been synthesized and characterized by single crystal X-ray diffraction studies, elemental analyses, IR′ UV–vis and NMR spectroscopy. They represent 3-dimensional, sixfold interpenetrating diamondoid network structures having large pores of dimension, 35 × 21 Å2 in 1 and 38 × 19 Å2 in 2, respectively.