Yanqin Wang

[Zn2(H2O)3(2,2′-bipy)2(btc)][Zn(H2O)(2,2′-bipy)(btc)] ·8H2O: a novel zinc–carboxylate complex consisting of independently cationic and anionic chains

A novel zinc complex, [Zn 2 (H 2 O) 3 (2,2 ′ -bipy) 2 (btc)][Zn(H 2 O)(2, 2 ′ -bipy)(btc)]·8H 2 O ( 1 ), (H 3 btc=1,3,5- benzenetricarboxylic acid, 2,2 ′ -bipy=2,2 ′ -bipyridine) has been prepared by hydrothermal reaction of H 3 btc, Zn(CH 3 CO 2 ) 2 ·2H 2 O and 2,2 ′ -bipyridine at 180 °C and characterized by single-crystal X-ray diffraction analysis. Complex 1 consists of independently cationic and anionic chains. The hydrogen bonding interactions between chains extend 1 into a two-dimensional supramolecular architecture.

Isomer separation, conformation control of flexible cyclohexanedicarboxylate ligand in cadmium complexesElectronic supplementary information (ESI) available: NMR spectra for chdcH2 under different conditions, XRPD patterns and the ??? stacking information for the two complexes. See http://www.rsc.org/suppdata/cc/b4/b407405j/

Two 2D cadmium coordination polymers have been prepared using flexible 1,4-cyclohexanedicarboxylic acid (chdcH2) under hydrothermal condition, the conformations of chdcH2 were separated completely in the synthetic reactions.

(2,2′-Bi­pyridine-κ2N,N′)­di­chloro­copper(II)

The title compound, [CuCl2(C10H8N2)], has twofold symmetry and the coordination geometry around the CuII atom is distorted square-planar. There are weak intermolecular Cu⋯Cl interactions, forming a chain structure in the crystal.