[Ph3PCH2Ph]2[Zn3(tp)3Cl2] and Ni3(tma)2(H2O)8:  Two Unusual Claylike Frameworks of Metal−Polycarboxylate Coordination Polymers (tp = Terephthalate, tma = Trimesate)

• Published in: Inorganic chemistry Vol. 46; no. 19; pp. 7910 - 7916
• Main Authors: Yang, Guo-Dong, Dai, Jing-Cao, Lian, Yun-Xia, Wu, Wen-Shi, Lin, Jian-Ming, Hu, Sheng-Min, Sheng, Tian-Lu, Fu, Zhi-Yong, Wu, Xin-Tao
• Format: Journal Article
• Language: English
• Published: American Chemical Society 17.09.2007
• ISSN: 0020-1669; 1520-510X
• DOI: 10.1021/ic700882n

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-ray single-crystal structural analysis shows that both compounds crystallize in the 2D claylike lamellar architectures, in which 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, β = 99.486(4)°). 2 (C18H22O20Ni3) is attributed to triclinic P1̄, Z = 1 (a = 6.6643(8) Å, b = 9.622(1) Å, c = 10.089(1) Å, α = 112.675(2)°, β = 94.007(1)°, γ = 106.411(2)°). Linear metal trinuclear clusters bridged by rigid linear tp ligands for 1 and trigonal tma ligands for 2 give rise to a novel 2D 6-linked (3,6) topological anionic network in 1 and an interesting 2D 3,6-linked molybdenite topological neutral network in 2, respectively. Both compounds exhibit intense fluorescent emission bands at 410 nm (λexc = 355 nm) for 1 and 398 nm (λexc = 300 nm) for 2 in the solid state at room temperature.