Co(II)/Mn(II)/Cu(II) Coordination Polymers Based onFlexible 5,5′-(hexane-1,6-diyl)-bis(oxy)diisophthalic Acid:Crystal Structures, Magnetic Properties, and Catalytic Activity.

To systematically explore the impactof coordination complexeson the synthesis of 2-imidazoline and 1,4,5,6-tetrahydropyrimidinederivatives, five Co(II)/Mn(II)/Cu(II) architectures, formulated as{[Co(L)0.5(H2O)2]·CH3OH·H2O}n(1), {[Co(L)0.5(pbib)]·4H2O}n(2), [Mn(L)0.5(Hatz)0.5(H2O)]n(3), {[Cu(L)0.5(phen)2][Cu(L)0.5(phen)2]·0.5L·5H2O}n(4), and {[Cu(L)0.5(2,2′-bpy)(H2O)]·H2O}n(5) (H4L= 5,5′-(hexane-1,6-diyl)-bis(oxy)diisophthalic acid,pbib = 1,4-bis(imidazol-1-ylmethyl)benzene, Hatz = 1H-1,2,4-triazol-3-amine, phen = 1,10-phenanthroline, 2,2′-bipy= 2,2′-bipyridine), have been designed and synthesized. 1presents a (4,4)-connected 2D sqlnet withits point (Schläfli) symbol of (44·62)2, which is finally extended to a 3D supramolecular frameworkby π···π stacking interactions. 2has a 3D (4,4)-connected new topology net with a point symbol of(86)2. 3features a (4,4)-connected3-fold interpenetrating 3D ptstopology network withthe Schläfli symbol (42·84)2. 4possesses two binuclear molecules, and theseadjacent binuclear units are further stretched to a 2D infinite packingstructure through two distinct types of π···πstacking interactions. 5is a 2D layer structure withthe (8)(84·122) topology. The magneticstudies of 1and 3elucidate that both ofthem signify antiferromagnetic interactions. 4and 5have been justified to be available heterogeneous catalystsfor the synthesis of 2-imidazoline and 1,4,5,6-tetrahydropyrimidinederivatives. [ABSTRACT FROM AUTHOR]