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[Ph3PCH2Ph]2[Zn3(tp)3Cl2] and Ni3(tma)2(H2O)8: Two Unusual Claylike Frameworks of Metal-Po
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Two new compounds, [Ph3PCH2Ph]2[Zn3(tp)3Cl2] (1) and Ni3(tma)2(H2O)8 (2) (tp = terephthalate, tma = trimesate),are metal-polycarboxylate coordination polymers prepared by similar hydrothermal synthesis techniques. X-raysingle-crystal structural analysis shows that both compounds crystallize in the 2D claylike lamellar architectures, inwhich 1 possesses the interlayer [Ph3PCH2Ph]+ exchangeable cation and has been confirmed by PXRD patterns.1 (C74H56Cl2O12P2Zn3) belongs to monoclinic P21/c, Z = 2 (a = 18.956(1) Å, b = 10.2697(5) Å, c = 17.067(1) Å, = 99.486(4)). 2 (C18H22O20Ni3) is attributed to triclinic P, Z = 1 (a = 6.6643(8) Å, b = 9.622(1) Å, c =10.089(1) Å, = 112.675(2), = 94.007(1), = 106.411(2)). Linear metal trinuclear clusters bridged by rigidlinear tp ligands for 1 and trigonal tma ligands for 2 give rise to a novel 2D 6-linked (3,6) topological anionicnetwork in 1 and an interesting 2D 3,6-linked molybdenite topological neutral network in 2, respectively. Bothcompounds exhibit intense fluorescent emission bands at 410 nm (exc = 355 nm) for 1 and 398 nm (exc = 300nm) for 2 in the solid state at room temperature.

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