Shape Controlled Synthesis of Nano-Sized Titanium(IV) Metal-Organic Frameworks
摘要:
A convenient method to synthesize shape controlled nano-sized metal-organic frameworks (MOFs) has been explored to prepare some novel mixed-ligand complexes of titanium(IV) with the general formula [Ti(acac)Cl2-n(OOCC15H31)(SB)n] (where Hacac = acetylacetone, HSB = Schiff bases and n = 1 or 2). They have been synthesized by stepwise substitutions of chloride ions from titanium(IV) chloride. The complexes were characterized by elemental analyses, molecular weight determinations, spectral, and TEM studies. Coordination number 7 and 8 was assigned for titanium(IV) in the complexes. The powder XRD, TEM, and SAED studies indicates that these complexes are nano-sized having poor crystalline nature.