10.1021/ic049713z.s002 Yun-Qi Tian Yun-Qi Tian Zhen-Xia Chen Zhen-Xia Chen Lin-Hong Weng Lin-Hong Weng Hui-Bin Guo Hui-Bin Guo Song Gao Song Gao Dong Yuan Zhao Dong Yuan Zhao Two Polymorphs of Cobalt(II) Imidazolate Polymers Synthesized Solvothermally by Using One Organic Template <i>N</i>,<i>N</i>-Dimethylacetamide American Chemical Society 2004 silicate CaAl 2 Si 2 O 8 cobalt Organic Template N polymorph CaGa 2 O 4 topological structures template imidazolate Pbca CrB 4 topology 2004-07-26 00:00:00 Journal contribution https://acs.figshare.com/articles/journal_contribution/Two_Polymorphs_of_Cobalt_II_Imidazolate_Polymers_Synthesized_Solvothermally_by_Using_One_Organic_Template_i_N_i_i_N_i_Dimethylacetamide/3331051 Two structurally different polymorphs of cobalt(II) imidazolate frameworks are solvothermally synthesized by using <i>N</i>,<i>N</i>-dimethylacetamide as a template:  The polymorph <b>6</b> (<i>a</i> = 9.797 (4) Å, <i>b</i> = 15.301(6) Å, <i>c</i> =14.902(6) Å, β = 98.904(6)°, monoclinic, <i>P</i>2<sub>1</sub>/<i>n</i>) shows structures of silicate CaAl<sub>2</sub>Si<sub>2</sub>O<sub>8</sub> with CrB<sub>4</sub> topology, while polymorph <b>7</b> (<i>a</i> = 15.173(4) Å, <i>b</i> = 15.173(4) Å, <i>c</i> = 19.089(5) Å, <i>Pbca</i>) shows CaGa<sub>2</sub>O<sub>4</sub>-related topological structures. In addition, the <b>7</b>‘ (<i>a</i> = 15.9712(18) Å, <i>b</i> = 15.9253(19) Å, <i>c</i> = 18.475(2) Å, <i>Pbca</i>), a compound isostructural with <b>7</b>, is synthesized by using cyclohexanol as a template. Thus, these cobalt(II) imidazolate polymers are reminiscent of the zeolite syntheses in that not only the same topological structure can be synthesized by using the different organic templates, but also different topological structures can be synthesized by using the same organic template.