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Helmut W Schmalle - One of the best experts on this subject based on the ideXlab platform.
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isomer abundance of bis β diketonato complexes of Titanium iv crystal structures of the antitumor Compound budotitane tiiv bzac 2 oet 2 and of its dichloro derivative tiiv bzac 2cl2 bzac 1 phenylbutane 1 3 dionate
Journal of Inorganic Biochemistry, 2003Co-Authors: Erich Dubler, Ralph Buschmann, Helmut W SchmalleAbstract:Abstract The molecular tumor inhibiting Titanium Compound budotitane [TiIV(bzac)2(OEt)2] (1) and its dichloro-derivative [TiIV(bzac)2Cl2] (2) (bzac=1-phenylbutane-1,3-dionate) have been crystallized and characterized by X-ray crystallography and further physical methods. Budotitane (1) crystallizes in the tetragonal, non-centrosymmetric space group P41 with two molecules in the asymmetric unit. Both molecules adopt the cis–cis–trans configuration with the acetyl ends of the benzoylacetonate ligands in the trans position. The dichloro-derivative of budotitane, [TiIV(bzac)2Cl2] (2) crystallizes in the monoclinic, centrosymmetric space group P21/n with one molecule only in the asymmetric unit. In contrast to budotitane (1), (2) shows a cis–trans–cis arrangement with the benzoyl groups in the trans position. In both complexes there are equal numbers of Δ and Λ enantiomers within the unit cell. The phenyl groups in (1) as well as in (2) are in approximately coplanar conjugation to the metal enolate rings. The thermal degradation of budotitane (1) was investigated in the temperature range from 25 °C up to 800 °C and reveals the formation of TiIVO(bzac2−) as an intermediate and of the rutile phase of TiO2 as a final product. It may be worthwhile to introduce budotitane in the form of isomerically pure crystals in the preparation of the drug used for future tests.
Erich Dubler - One of the best experts on this subject based on the ideXlab platform.
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isomer abundance of bis β diketonato complexes of Titanium iv crystal structures of the antitumor Compound budotitane tiiv bzac 2 oet 2 and of its dichloro derivative tiiv bzac 2cl2 bzac 1 phenylbutane 1 3 dionate
Journal of Inorganic Biochemistry, 2003Co-Authors: Erich Dubler, Ralph Buschmann, Helmut W SchmalleAbstract:Abstract The molecular tumor inhibiting Titanium Compound budotitane [TiIV(bzac)2(OEt)2] (1) and its dichloro-derivative [TiIV(bzac)2Cl2] (2) (bzac=1-phenylbutane-1,3-dionate) have been crystallized and characterized by X-ray crystallography and further physical methods. Budotitane (1) crystallizes in the tetragonal, non-centrosymmetric space group P41 with two molecules in the asymmetric unit. Both molecules adopt the cis–cis–trans configuration with the acetyl ends of the benzoylacetonate ligands in the trans position. The dichloro-derivative of budotitane, [TiIV(bzac)2Cl2] (2) crystallizes in the monoclinic, centrosymmetric space group P21/n with one molecule only in the asymmetric unit. In contrast to budotitane (1), (2) shows a cis–trans–cis arrangement with the benzoyl groups in the trans position. In both complexes there are equal numbers of Δ and Λ enantiomers within the unit cell. The phenyl groups in (1) as well as in (2) are in approximately coplanar conjugation to the metal enolate rings. The thermal degradation of budotitane (1) was investigated in the temperature range from 25 °C up to 800 °C and reveals the formation of TiIVO(bzac2−) as an intermediate and of the rutile phase of TiO2 as a final product. It may be worthwhile to introduce budotitane in the form of isomerically pure crystals in the preparation of the drug used for future tests.
Thomas Kolberg - One of the best experts on this subject based on the ideXlab platform.
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metal surface treatment composition metal surface treatment method and metal material
2011Co-Authors: Toshio Inbe, Thomas KolbergAbstract:A metal surface treatment composition including at least one Compound selected from the group consisting of a zirconium Compound and a Titanium Compound, and an organosiloxane, which is a polycondensate of organosilane and has in a molecule thereof of at least two amino groups, in which the Degree of polycondensation of the organosiloxane is at least 40%, the content of at least one Compound selected from the group consisting of the zirconium Compound and the Titanium Compound is predetermined content, the content of the organosiloxane in the metal surface treatment composition is predetermined content, and the mass ratio of at least one element selected from the group consisting of the zirconium element and the Titanium element contained in the zirconium Compound and the Titanium Compound, respectively, to the silicon element contained in the organosiloxane is a predetermined ratio.
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composition for metal surface treatment metal surface treatment method and metal material
2007Co-Authors: Toshio Inbe, Thomas KolbergAbstract:Disclosed is an easily handleable composition for metal surface treatment which enables to achieve foundation surface concealment, coating adhesion and corrosion resistance equal to or higher than those obtained by the conventional metal surface treatment compositions. This composition for metal surface treatment places no burden on the environment. Also disclosed are a method for treating the surface of a metal material wherein such a composition for metal surface treatment is used, and a metal material treated by such a metal surface treatment method. Specifically disclosed is a metal surface treatment composition used for a treatment of a metal surface, which composition contains a zirconium Compound and/or Titanium Compound substantially not containing fluorine, and an inorganic acid and/or a salt thereof. This metal surface treatment composition has a pH of not less than 1.5 but not more than 6.5.
Piotr Klimczyk - One of the best experts on this subject based on the ideXlab platform.
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Thermal Stability and Coefficient of Friction of the Diamond Composites with the Titanium Compound Bonding Phase
Journal of Materials Engineering and Performance, 2017Co-Authors: Sławomir Cygan, J. Cyboron, P. Putyra, W Ratuszek, Lucyna Jaworska, Piotr KlimczykAbstract:In this paper, processes occurring during heat treatment of the diamond-Ti Compound composites without Co addition were investigated and compared with commercial PCD. Three types of materials were prepared. The first material was sintered using the mixture containing diamond and 10 mass% of TiC, the second material was prepared using diamond powder and 10 mass% of Ti-Si-C, and the third composite was sintered using the addition of 10 mass% of TiB_2. During the research, it was proved that TiO_2 formation contributes to material swelling and WO_3 (W is present from the milling process) causes a significant increase in coefficient of friction. TiC and Ti-Si-C bonded materials are very susceptible to this process of oxidation; their hardness drops absolutely after wear test at 600 °C. The diamond composite with TiB_2 is the most resistant to oxidation from investigated materials.
Diansheng Liu - One of the best experts on this subject based on the ideXlab platform.
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mononuclear Titanium Compounds based on the silyl linked bis amidinate ligand synthesis characterization and ethylene polymerization
Dalton Transactions, 2011Co-Authors: Shengdi Bai, Fei Guan, Shifang Yuan, Jianping Guo, Diansheng LiuAbstract:The mononuclear silyl-linked bis(amidinate) Titanium Compound 2 was prepared by salt metathesis of 1 and TiCl4(thf)2. Alkylation of 2 with methyllithium gave analogue 3. Both 2 and 3 exhibited a configuration similar to ansa-metallocene and showed good activity towards ethylene polymerization after activation with MAO.