European Journal of Inorganic Chemistry p. 5000 - 5005 (2011)
Update date:2022-08-04
Topics:
Ibrahim, Asiata Omotayo
Zhou, Youfu
Jiang, Feilong
Chen, Lian
Li, Xingjun
Xu, Wentao
Onawumi, Oluyemi O. E.
Odunola, Olusegun A.
Hong, Maochun
The MnII and CuII compounds of 3-(2-pyridyl)-5,6- diphenyl-1,2,4-triazine-4,4'-disulfonic acid (H2pdtd) were synthesized and systematically characterized. The metal-organic framework (MOF) [Mn2(pdtd)2(H2O)4] n·5nH2O (1) was constructed by a solvothermal method preformed at 140 °C with methanol as the solvent, while [Cu(pdtd)(H2O)4]·H2O (2) was obtained by conventional solution chemistry conducted at 80 °C. Crystallographic analysis revealed that 1 has an acentric structure in which the MnII centers are linked via sulfonate groups and chelating nitrogen atoms within the pdtd ligands to give a rare noninterpenetrating (10,3)-d framework with permanent helical cavities. Consequently, 1 exhibits nonlinear optical (NLO) activity, significant CO2 sorption, and magnetic coupling. In contrast, 2 is a mononuclear complex with coordinated water and lacks functional properties. A (10,3)-d metal-organic framework, [Mn2(pdtd) 2(H2O)4]n·5nH2O (1), containing the asymmetrical 3-(2-pyridyl)-5,6-diphenyl-1,2,4-triazine-P,P'- disulfonate ligand (pdtd) was constructed. XRD analysis revealed that 1 is an acentric structure possessing exposed uncoordinated nitrogen atoms within helical cavities. 1 exhibits multifunctionality: nonlinear optical activity, CO2 sorption, and magnetic coupling.
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