titanium(IV) citrate | 51981-73-8

• 分子结构分类: 有机化合物 - 有机酸及其衍生物 - 羧酸及其衍生物
• 英文名称: titanium(IV) citrate
• 英文别名: titanium citrate；1,2,3-Propanetricarboxylic acid, 2-hydroxy-, titanium salt；2-hydroxypropane-1,2,3-tricarboxylate;titanium(4+)
• CAS: 51981-73-8
• 化学式: 4C₆H₅O₇*3Ti
• 分子量: 900.046
• InChiKey: ZFYCPQMKZFXBHL-UHFFFAOYSA-K

计算性质

• 辛醇/水分配系数(LogP)：
  -5.26
• 重原子数：
  14
• 可旋转键数：
  2
• 环数：
  0.0
• sp3杂化的碳原子比例：
  0.5
• 拓扑面积：
  141
• 氢给体数：
  1
• 氢受体数：
  7

反应信息

• 作为反应物：
  描述：

  titanium(IV) citrate 在 air 作用下， 以 not given 为溶剂， 生成 titanium(IV) oxohydroxide
  参考文献：
  名称：

  Photochemical Mineralization of Europium, Titanium, and Iron Oxyhydroxide Nanoparticles in the Ferritin Protein Cage

  摘要：

  The Fe storage protein ferritin was used as a size-constrained reaction vessel for the photoreduction and reoxidation of complexed Eu, Fe, and Ti precursors for the formation of oxyhydroxide nanoparticles. The resultant materials were characterized by dynamic light scattering, gel electrophoresis, UV-vis spectroscopy, and transmission electron microscopy. The photoreduction and reoxidation process is inspired by biological sequestration mechanisms observed in some marine siderophore systems.

  DOI：

  10.1021/ic701740q
• 作为产物：
  描述：

  titanium(IV) isopropylate 以 not given 为溶剂， 生成 titanium(IV) citrate
  参考文献：
  名称：

  Photoluminescence in disordered Zn2TiO4

  摘要：

  In this work, the polymeric precursor method Was used to obtain disordered Zn2TiO4 powders, either Undoped or doped with Sn4+, Cr3+ and V5+, to be applied its photoluininescent material. The characterization was undertaken by means of thermal analysis (TG and DTA), X-ray diffraction (XRD), infrared spectroscopy (IR) and photoluminescence (PL). Previous works stated that titanate octahedra containing a short Ti-O distance show efficient luminescence at roorn temperature if these octahedra are isolated from each other. In the present work, the phenomenon was observed in condensed octahedra, sharing edges. The room temperature PL noticed in undoped Zn2TiO4 had its intensity increased by the dopant addition-the increase was of about 300% for V5+ doping 400% for Cr3+ and 800% for Sn4+. (c) 2005 Elsevier Inc. All rights reserved.

  DOI：

  10.1016/j.jssc.2005.12.018
• 作为试剂：
  描述：

  2-硝酰胺基乙酸 在 titanium(IV) citrate 、 三(羟甲基)甲基甘氨酸 、 N-nitroglycine lyase A from Variovorax sp. strain JS₁₆₆₃ 作用下， 生成 Nitrite 、 Ammonium 、 glyoxylate
  参考文献：
  名称：

  NnlA 同系物的活性测定表明天然产物 N-硝基甘氨酸可被多种细菌降解

  摘要：

   抽象的 直链硝胺（R–N(R′)NO 2 ；R′ = H 或烷基）是有毒化合物，其中一些与环境相关，而另一些则是罕见的天然产物硝胺。其中一种天然产物硝胺是N-硝基甘氨酸 (NNG)，它由一些链霉菌菌株产生，对革兰氏阴性菌具有抗生素活性。最近在Variovorax sp. 的基因组中发现了一种 NNG 降解血红素酶，称为 NnlA。菌株 JS1663（对比NnlA）。有证据表明 NnlA 以及 NNG 降解活性是广泛存在的。为了实现这一目标，我们表征并测试了五种Vs NnlA 同源物的 NNG 降解活性，这些同源物源自跨越多个类别并从不同地理位置分离的细菌。含有所有五种同源物的大肠杆菌转化体将 NNG 转化为亚硝酸盐。分离并表征了这五种同系物中的四种。每个分离的同系物表现出与Vs NnlA相似的寡聚化和血红素占据。该血红素的还原被证明是每个同系物中的NnlA活性所必需的，并且根据Vs Nn

  DOI：

  10.3762/bjoc.20.75

文献信息

• Stereoselective Formation of Seven-Coordinate Titanium(IV) Monomer and Dimer Complexes of Ethylenebis(<i>o</i>-hydroxyphenyl)glycine
  作者：Maolin Guo、Hongzhe Sun、Shailja Bihari、John A. Parkinson、Robert O. Gould、Simon Parsons、Peter J. Sadler

  DOI：10.1021/ic990669a

  日期：2000.1.1

  carboxylate O-atoms at 2.061(2) A, and a water molecule (Ti-OH2, 2.091(3) A). Complex 2 crystallizes as an oxygen-bridged dimer in the triclinic space group P-1 with a = 12.521(6) A, b = 14.085(7) A, c = 16.635(8) A, alpha = 80.93(2) degrees beta = 69.23(2) degrees, gamma = 64.33(2) degrees , V = 2472(2) A3, Z = 4, and R(F) = 0.0580 for 5956 independent reflections having I > 2sigma(I). Each seven-coordinate

  在水溶液和固态下，研究了抗肿瘤药二茂钛二氯化物（Cp2TiCl2）和六齿配体N，N'-亚乙基双-（邻-羟基苯基甘氨酸）（H4ehpg）之间的反应。外消旋配体产生单体[Ti（ehpg）（H2O）] x（11/3） （1）的晶体，而内消旋配体产生氧桥联二聚体[[Ti（Hehpg）（ ）] 2O]。 x 13 （2）。配合物1在单斜空间群C2 / c中结晶，其中a = 24.149（4）A，b = 14.143（3）A，c = 19.487（3）A，β= 105.371（13）度，V = 6417.7（19）对于I> 2sigma（I）的4,428次独立反射，A3，Z = 12和R（F）= 0.0499，并且包含具有两个轴向酚盐配体的七坐标五角-双锥体TiIV（Ti-O，1.869（2）A） 。五边形平面包含2.210（2）A处的两个N原子，2.061（2）A处的两个羧酸O原子，和水分子（Ti-OH2，2
• Grain size dependent magnetoelectric coupling of BaTiO₃ nanoparticles
  作者：Tesfakiros Woldu、B. Raneesh、M. V. Ramana Reddy、Nandakumar Kalarikkal

  DOI：10.1039/c5ra18018j

  日期：——

  We report the magnetoelectric (ME) coupling properties of BaTiO₃ nanoparticles of different grain sizes ranging from 16–26 nm synthesized using a modified Pechini method.

  我们报告了使用改进的Pechini方法合成的不同晶粒尺寸范围从16-26纳米的BaTiO₃纳米颗粒的磁电（ME）耦合特性。
• Structure evolution in the La2MgTiO6–Ba2MgWO6 system
  作者：D.D. Khalyavin、A.N. Salak、M.P. Seabra、A.M.R. Senos、P.Q. Mantas、V.M. Ferreira

  DOI：10.1016/j.materresbull.2005.07.020

  日期：2006.1

  The crystal structure of dielectric ceramics in the (1 - x)La2MgTiO6 (LMT)-xBa(2)MgWO(6) (BMW) system has been studied by X-ray powder diffraction and transmission electron microscopy. LMT and BMW were found to form solid solutions in the whole compositional range. Increase of BMW content results in two structural transformations: continuous P2(1)/n --> I2/m at x between 0.2 and 0.25 and discontinuous I2/m --> Fm(3) over barm at x between 0.4 and 0.5. This sequence of the phase transitions is compared with structural transformations in other solid solutions between dielectric complex perovskites. It is supposed that the discontinuity of the I2/m --> Fm(3) over barm phase transition might contribute to some peculiarities in the compositional dependence of dielectric characteristics of this system. (C) 2005 Elsevier Ltd. All rights reserved.