Construction And Properties Of Metal Carboxylate Compounds

This thesis mainly researches on functional transition metal coordination polymers obtained under hydrothermal conditions,further studying their structure diversities and properties.The potential applications that are reliant on chemical and physical properties were also explored.In the hydrothermal synthesis conditions,transition metal ions of Cd²⁺,Mn²⁺ and Co²⁺ were used to combine with two kinds of carboxylic acid ligands,5,5'-?diphenylsilanediyl?diisophthalic acid?H₄L'?and 4,4',4''-?methylsilanetriyl?tribenzoic acid?H₃L?.Three compounds with the novel structures were obtained,namely CdL',MnL and CoL,respectively.Theirs structure have been determined by single-crystal X-ray diffraction and further characterized by X ray powder diffraction,elemental analysis,thermogravimetric analysis and IR spectroscopy.The syntheses,structures,thermal stabilities and photoluminescence have been investigated.The fluorescence performance and magnetic properties of three compounds were also studied.Compound CdL' features a 2D layered framework.Luminescent measurement showed that the compound CdL' have excellent fluorescence effect,and it may be used as a potential candidate for photoactive materials.Compounds MnL and CoL have 3D framework structures,magnetic study showed that the former feature ferromagnetic interactions,the latter are antiferromagnetic interactions.Compounds MnL and CoL maybe have wide development space as magnetic properties materials.