10.1021/cg301480s.s002 Conrad W. Ingram Conrad W. Ingram Liang Liao Liang Liao John Bacsa John Bacsa Issifu Harruna Issifu Harruna Daniel Sabo Daniel Sabo Z. John Zhang Z. John Zhang Novel Layered 2D and Triply Interpenetrating 3D Cobalt-Functionalized Diaza-12-crown Based Coordination Polymers: Synthesis, Structure, and Magnetic Properties American Chemical Society 2013 ligand 2L Novel Layered 2 D dioxa triply interpenetrating 3 D network Compound 2 crystallizes space group C 2 carboxylate oxygen atoms Weak antiferromagnetic interactions octahedral geometry exhibit interpenetrating dmd topology center Compound 1 crystallizes Magnetic PropertiesTwo novel coordination polymers 2013-03-06 00:00:00 Dataset https://acs.figshare.com/articles/dataset/Novel_Layered_2D_and_Triply_Interpenetrating_3D_Cobalt_Functionalized_Diaza_12_crown_Based_Coordination_Polymers_Synthesis_Structure_and_Magnetic_Properties/2436814 Two novel coordination polymers with formulas Co<b>L1</b>·3H<sub>2</sub>O [<b>1</b>, <b>L1</b> = 3,3′-((1,7-dioxa-4,10-diazacyclododecane-4,10-diyl)­bis­(methylene) dibenzenecarboxylate] and Co<sub>2</sub><b>L2</b>(H<sub>2</sub>O)<sub>2</sub>·2­(H<sub>2</sub>O) [<b>2</b>, <b>L2</b> = 5,5′-((1,7-dioxa-4,10-diazacyclododecane-4,10-diyl)­bis­(methylene)) diisophthalate] were synthesized, where one Co­(II) ion coordinates the crown-4 moiety of the ligand. Compound <b>1</b> crystallizes in the space group <i>C</i>2 as an infinite two-dimensional chiral layered coordination network with a tetragonal 4<sup>4</sup> <b>sql</b> net topology. The structural unit consists of the coordinated Co­(II) ion and the deprotonated ligand. The Co­(II) ion is 6-coordinate with two nitrogen atoms and two oxygen atoms of the crown 1,7-diaza-12-crown-4, and two carboxylate oxygen atoms from neighboring ligands, and exhibits a highly distorted octahedral geometry. Compound <b>2</b> crystallizes in the monoclinic space group <i>P</i>2<sub>1</sub>/<i>n</i> as a triply interpenetrating 3D network with the uncommon <b>sqc</b>528/dmd system, the first coordination polymer with a 3-fold interpenetrating dmd topology. It exhibits two distinct Co­(II) ions. One is in the center of the crown-4 along with two <i>cis</i>-coordinated water molecules in a highly distorted octahedral geometry; the other is 4-coordinate with tetrahedral geometry and a node in the framework. Weak antiferromagnetic interactions exist between the cobalt centers in both compounds.