Mixed azide and substituted 1,2,4-triazole co-ligand bridged 1D chain cadmium(II) motif: crystal structure, Hirshfeld surfaces and spectroscopic studies

作者：Luo, Yang-Hui^*; Wu, Dong-En; Ge, Shu-Wang; Li, Yuan; Sun, Bai-Wang

来源：RSC Advances, 2014, 4(23): 11698-11704.

DOI：10.1039/c3ra46125d

• SPIN-CROSSOVER
• COPPER(II) COMPLEX
• MOLECULAR MATERIAL
• CROWN-ETHER
• ACID
• HYDRATE
• BINDING
• END

A novel Cd(II) coordination polymer (1) derived from azide and 3-ethyl-4-(3-methylphenyl)-5-(2-pyridyl)-1,2,4-triazole co-ligand (L), has been synthesized and structurally characterized. Complex 1, [Cd-2(mu(1,1)-N-3)(2)L-2(N-3)(2)]center dot H2O, features a primary structure with binuclear units bridged by double asymmetric mu(1,1)-azido and double terminal azide. The adjacent binuclear units are linked by two syn-syn bridged ligands L into an infinite 1D structure. Water molecules, which are located on the two sides of the binuclear unit through O-H center dot center dot center dot N hydrogen bond interactions with the terminal azide, supported the conversion of 1D chain structures into a 3D motif. Hirshfeld surfaces analysis revealed that the main intermolecular interactions experienced by ligand L in 1 are H-H, N-H and C-H contacts. We further investigated the Raman and IR spectra of co-ligand L, complex 1 and the dehydrated form of 1, which revealed that the dehydration of 1 does not effect the crystal structure.

• 出版日期2014
• 单位东南大学