4403-68-3

Upstream product

• 7550-45-0 titanium tetrachloride 
• 108-95-2 phenol 

Downstream Products

• 1011294-45-3 titanium(IV) hydride phenoxide 

Relevant academic research and scientific papers

Synthesis of arene Ti and Zr complexes and their reactivity towards air: crystal structure of (Al2Cl7) and TiCl3(OPh)

The complex (Al2Cl7) has been prepared by reductive Friedel-Crafts synthesis.Its structure confirms remarkable differences in chemistry of arene complexes of Ti(II) and Zr(II).The crystalline complex TiCl3(OPh) was formed by slow

Ethylene/1-hexene copolymerization with MgCl2-supported Ziegler-Natta catalysts containing aryloxy ligands. Part I: Catalysts prepared by immobilizing TiCl3(OAr) onto MgCl2 in batch reaction

Novel aryloxy-containing MgCl2-supported Ziegler-Natta catalysts were prepared by treating TiCl3(OAr) (Ar = C6H 5-, 2,6-Me2C6H3-, 2,6-i-Pr 2C6H3-, 2,6-t-Bu2C6H 3-) with MgCl2 in batch reaction. The influences of aryloxy group on the titanium content and aryloxy/Ti molar ratio in the catalysts was investigated. Because of ligand exchanges between the immobilized titanium species and TiCl3(OAr) in the solution, the aryloxy/Ti molar ratio in these catalysts were less than 1. Using triethylaluminum (TEA) or triisobutylaluminum (TIBA) as cocatalyst, these catalysts showed different catalytic behaviors in ethylene-1-hexene copolymerization. Using TIBA as cocatalyst, the aryloxy-containing catalysts showed higher activity than a TiCl4/MgCl2 blank catalyst. Although the total 1-hexene incorporation of the copolymers prepared by the novel catalysts were lower than that of the blank system, the difference in 1-hexene content between the boiling n-heptane soluble part and the insoluble part was markedly lower, and the blockiness of comonomer sequence distribution was evidently higher. The TIBA activated aryloxy-containing catalysts were found to produce poly(ethylene-co-1-hexene) with more uniform chemical composition distribution.

ORGANOMETALLIC COMPLEXES AS HYDROGEN STORAGE MATERIALS AND A METHOD OF PREPARING THE SAME

The present invention relates to an organic-transition metal complex which can safely and reversibly store hydrogen in a high capacity, and a process for preparing the same. In order to achieve the objects, the hydrogen storage material according to the i

ORGANOMETALLIC COMPLEXES AS HYDROGEN STORAGE MATERIALS AND A METHOD OF PREPARING THE SAME

The present invention relates to an organic-transition metal complex which can safely and reversibly store hydrogen in a high capacity, and a process for preparing the same. In order to achieve the objects, the hydrogen storage material according to the invention comprises a complex generated by combination of an organic substance containing a hydroxyl (-OH) group (s) with a transition metal containing compound, which can more effectively store hydrogen with more than one transition metal being bonded per molecule. Examples of the organic substances containing hydroxyl (-OH) group (s) include alkyl derivatives such as ethylene glycol, trimethylene glycol and glycerol, and hydroxyl -containing aryl derivatives such as f luoroglucinol. As the transition metal, titanium (Ti), vanadium (V) and scandium (Sc), which can make Kubas binding, may be mentioned.

Trichloro monophenoxide complexes of titanium(iv)

Thermalisation of TiCl4 and phenol (1:1) in toluene gave [TiCl3(OC6H5)] 1. The more soluble complex [TiCl3(OC6H4CMe3-4)] 2 is monomeric in benzene and reacts with 4, 4′-dimethyl-2, 2′-bipyridyl (dmbipy) to give mer-[TiCl3(OC6H4CMe3-4)(dmbipy)] 3 and the disproportionation product [TiCl2(OC6H4CMe3-4) 2(dmbipy)]. The complex [TiCl3(OC6H2Me3-2, 4, 6)] 4 is monomeric in benzene whereas [TiCl3(OC6H3Pr21-2, 6)] 5 partially disproportionates in solution into [TiCl2(OC6H3Pr21-2, 6)2] and reacts with dmbipy to give mer-[TiCl3(OC6H3Pr21-2, 6)(dmbipy)] 6 and [TiCl2(OC6H3Pr21-2, 6)2(dmbipy)]. Thermalisation of 2, 6-di-/4 in toluene caused debutylation but [TiCl3{OC6H2(CMe3)2-2, 6-Me-4}] 7 forms in light petroleum (bp range 40-60 °C). Complex 7 is monomeric in benzene and does not form adducts with dmbipy or other sigma donors. A crystal structure determination of 7 showed a monomer with distorted tetrahedral co-ordination, a Ti-O bond length of 1.750(2) A and Ti-Cl bonds longer than in TiCl4 but shorter than in [TiCl3(C5H5)] or [TiCl3{C5H3(CMe3)2-l, 3}]· 2, 4, 6-Tri-rcrt-butylphenol debutylates when thermalised with TiCl4 in toluene giving [TiCl3{OC6H4(CMe3)2-2, 4}] 8. The complexes [TiCl3{OC6H2(CMe3)2-2, 6-OMe-4}] 9, [TiCl3(OC6H3CMe3-2-Me-4)] 10, [TiCl3(OC6H4Ph-2)] 11 and the 1-naphthoxide complex [TiCl3(OC10H7)J 12 were also prepared. Density functional calculations performed on the models 4 and [TiCl3(OMe)] showed both lone pairs on oxygen donate electron density to titanium but O(2p)-to-C=C (π*) donation weakens the Ti-O interaction in the phenoxide complex; CI(2p)-to-Ti(3d) donation is much reduced in the methoxide complex. The system [TiCl3(OC6H4CMe3-4)]/AlMe 3 is 280 times more active than [TiCl3Cp] (Cp = cyclopentadienyl)/AlMe3 for low pressure (6 psi) ethylene polymerisation but 1/3 less active than TiCl4/AlMe3. The Royal Society of Chemistry 2000.