1429482-03-0Relevant academic research and scientific papers
Syntheses, crystal structures, substituents steric effect, luminescent and moisture-stability studies of three two-dimensional zinc-organic frameworks
Ma, De-Yun,Lu, Kuan,Qin, Liang,Guo, Hai-Fu,Peng, Xiong-Yi,Liu, Jian-Qiang
, p. 84 - 91 (2013)
Three new 2D zinc-organic frameworks, [Zn3(L1) 3(DMF)2]n (1), [Zn(L2)(BPP)]n (2) and [Zn2(L3)2(BPP)]n·nDMF (3), (L1 = 2,5-dimethylterephthalate, L2 = 2-aminoterephthalate, L3 = terephthalate, BPP = 1,3-bis(4-pyridyl)propane, DMF = N,N-dimethylformamide), have been prepared and characterized. Complex 1 consists of trinuclear zinc clusters connected to six L1 ligands, in which the trinuclear clusters act as pseudo-planar hexagonal nodes to give a 2D network. In complex 2, two 44-sql nets interlock in parallel and give rise to a polycatenated layer (2D → 2D). Complex 3 features a 2D (4,4) net when the dinuclear [Zn2(COO) 2N2O2] unit is regarded as a quadruply-connected node. These results indicate that the steric effect of 1,4-benzenedicarboxylates substituents has an important effect on the structural topologies of such Zn(II) complexes. All of 1-3 emit the intense indigotin photoluminescence at room temperature, with lifetimes of 28.04, 3.08 and 2.43 ns, respectively. The moisture-stability analyses of 1-3 have also been investigated.
