1 Structural Evolution and Magnetic Properties of Co II Coordination Polymers Varied From 1D to 3D Constructed by 1,4-Bis(1,2,4-triazol-1-ylmethyl)-Benzene Shi-Yuan Zhang, Zhen-Jie Zhang, Wei Shi, * Bin Zhao, Peng Cheng, * Dai-Zheng Liao, Shi-Ping Yan Department of Chemistry and Key Laboratory of Advanced Energy Material Chemistry, Ministry of Education, Nankai University, Tianjin 300071, P. R. China (a) (b) Electronic Supplementary Material (ESI) for Dalton Transactions This journal is © The Royal Society of Chemistry 2011