A new calcium(II) coordination polymer based on a mu(2)-bridging tridentate 4-nitrobenzoate

作者：Srinivasan Bikshandarkoil R^*; Shetgaonkar Santosh Y; Saxena Manav; Nather Christian

来源：Indian Journal of Chemistry - Section A: Inorganic, Physical, Theoretical and Analytical Chemistry , 2012, 51(3): 435-443.

• Coordination chemistry
• Calcium
• 4-Nitrobenzoates
• 3,5-Dimethylpyrazole
• Coordination polymers
• Metal organic frameworks

Reaction of a heptacoordinated Ca(II) compound [Ca(H2O)(4)(4-nba)(2)] (4-nba = 4-nitrobenzoate) with 3,5-dimethylpyrazole (dmp) leads to the formation of an eight coordinated Ca(II) compound, [[Ca(H2O)(2)(4-nba)(2)]center dot 2dmp](n), containing two coordinated water molecules, two unique 4-nba ligands and two free dmp molecules in the lattice. The mu(2)-bridging tridentate binding mode of the unique 4-nba ligands results in the formation of a one-dimensional (1-D) coordination polymer. The title compound exhibits enhanced fluorescence emission. An analysis of the six different bridging binding modes of the 4-nba ligand in twenty two different structurally characterized 4-nitrobenzoate compounds is described.

• 出版日期2012-3