Abstract
Some volatile binary metal-organic frameworks of titanium (IV), [Ti(OOCR) 4 ] (where R = C 13 H 27, C 15 H 31, C 17 H 35 or C 21 H 43 ) were synthesized by the reaction of titanium tetrachloride and sodium salts of the straight chain fatty acids (prepared in situ) in 1:4 molar ratio. The isolated solid products were showing poor crystallinity and were characterized by their elemental analyses, molecular weight determinations, conductance, spectral (infrared, 1 H NMR, 13 C NMR, FAB mass and powder XRD) and TEM studies. Their monomeric nature was confirmed by molecular weight determinations and FAB mass spectra. Eight coordination number of titanium (IV) have been assigned in the isolated compounds. TEM indicated the particles are spherical in shape having ~200 nm diameter.
Highlights
Metal-organic frameworks (MOFs) of some transition metals have attracted a considerable attention in recent years [1,2,3,4,5] due to their wide range of applications
A good air and moisture stable, easy-to-handle and volatile titanium precursor is a prerequisite for metallo-organic chemical vapour deposition (MOCVD) process [11]
In this paper we report an easier method to synthesize titanium(IV) tetracarboxylates and solid products have been isolated
Summary
Metal-organic frameworks (MOFs) of some transition metals have attracted a considerable attention in recent years [1,2,3,4,5] due to their wide range of applications. It has been observed that only oxo- or di- or tri- substituted carboxylate derivatives of titanium(IV) are resulted after a number of trials to synthesize its tetracarboxylates [15,16,17]. To the sodium salt of myristic acid formed in situ, titanium tetrachloride (0.60 g, 3.16 mmol) in benzene (40 mL) was added dropwise with constant stirring.
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