gadolinium(III) phosphate | 690621-72-8

• 分子结构分类: 无机化合物 - 混合金属/非金属化合物 - 镧系含氧阴离子化合物
• 英文名称: gadolinium(III) phosphate
• 英文别名: gadolinium phosphate；gadolinium monophosphate；gadolinium ortho-phosphate；gadolinium(III) orthophosphate；gadolinium(3+);phosphate
• CAS: 690621-72-8
• 化学式: Gd*O₄P
• 分子量: 252.221
• InChiKey: JAOZQVJVXQKQAD-UHFFFAOYSA-K

计算性质

• 辛醇/水分配系数(LogP)：
  -2.82
• 重原子数：
  6
• 可旋转键数：
  0
• 环数：
  0.0
• sp3杂化的碳原子比例：
  0.0
• 拓扑面积：
  86.2
• 氢给体数：
  0
• 氢受体数：
  4

反应信息

• 作为反应物：
  描述：

  gadolinium(III) phosphate 、 sodium fluoride 以 neat (no solvent, solid phase) 为溶剂， 生成
  参考文献：
  名称：

  Luminescence of NaGdFPO4:Ln3+ after VUV excitation: A comparison with GdPO4:Ln3+ (Ln=Ce, Tb)

  摘要：

  The phosphors NaGdFPO4:Ln(3+) and GdPO4:Ln(3+) (for Ln(3+) = Ce3+ and Tb3+) were prepared by solid-state reaction technique, the VUV-vis spectroscopic properties of the phosphors were investigated, and we vividly compare the luminescence of Ce3+ and Tb3+ in the hosts. For phosphors GdPO4:Ln(3+), the band and near 155 nm in VUV excitation spectrum is assumed to be the host-related absorption, and for NaGdFPO4:Ln(3+) the absorption is moved to longer wavelength, near 170 nm, showing the P-O bond covalency increased after fluoridation. The f-d transitions of Ce3+ and Tb3+, in the host lattices are assigned and corroborated, and it was found that the 5d states are with lower energy in NaGdFPO4:Ln(3+) than those in GdPO4:Ln(3+). For fluoridation of GdPO4:Ln(3+) to NaGdFPO4:Ln(3+), the energy change of Ln(3+) (Ln = Ce, Tb) 5d states is consistent with that of host-related absorption. (C) 2006 Elsevier Inc. All rights reserved.

  DOI：

  10.1016/j.jssc.2006.01.044
• 作为产物：
  描述：

  gadolinium diphosphate 以 neat (no solvent) 为溶剂， 生成 gadolinium(III) phosphate
  参考文献：
  名称：

  Characterization and thermal behavior of HGdP2O7·3H2O

  摘要：

  Crystals of the trihydrated gadolinium diphosphate HGdP2O7. 3H(2)O were obtained from a mixture of diphosphoric acid and gadolinium nitrate solutions. This salt was characterized by X-ray powder diffraction, IR spectroscopy and thermal analysis. IR spectroscopic study reveals the existence of the characteristic band of the P2O7 group, the v(as)(POP) band, at 941 cm(-1) and the absence of the v(s)(POP) one. The thermal decomposition of HGdP2O7. 3H(2)O, which was followed by thermogravimetry and differential scanning calorimetry, shows that the elimination of the crystallization water takes place in three stages between 71 and 500 degreesC. The overall DeltaH of the first two dehydration were found to be 41.06 and 25.88 kJ/mol. New well-crystallized hydrates HGdP2O7.1.5H(2)O and HGdP2O7.0.5H(2)O were obtained through heating HGdP2O7. 3H(2)O, respectively, at 145 and 280 degreesC. The anhydrous HGdP2O7 salt, which was obtained by calcination of HGdP2O7. 3H(2)O at 530 degreesC, decomposes at 700 degreesC with loss Of P2O5 to give the gadolinium diphosphate Gd-4(P2O7)(3). (C) 2001 Elsevier Science Ltd. All rights reserved.

  DOI：

  10.1016/s0025-5408(01)00689-4
• 作为试剂：
  描述：

  正丁醇 在 gadolinium(III) phosphate 作用下， 生成 丁烯
  参考文献：
  名称：

  气相中轻质醇同时脱水的高效催化剂

  摘要：

  我们报道了在稀土磷酸盐催化剂上轻质醇的同时脱水。催化反应在气相固定床反应器中于490至643 K的温度范围内进行。使用各种技术合成并表征了催化剂样品，并通过监测2,6-二甲基吡啶的解吸反应对它们的酸性质进行了比较。 FTIR光谱学手段。发现该催化剂对于将乙醇和1-丁醇同时脱水成乙烯和2-丁烯非常有效。这种催化脱水应包括在催化剂表面上发现的中等强度的布朗斯台德和路易斯酸位，它们的强度分布足够宽，可以使两种醇脱水之间的竞争最小化。该催化剂在细菌发酵产生的酒精混合物直接脱水方面也非常有效（PBE：丙醇-1-丁醇-乙醇和ABE：丙酮-1-丁醇-乙醇）。该结果使得可以考虑用于生产丙烯的基于易位的工业方法，其中第一步涉及通过生物质降解产生的醇混合物的脱水。这些催化剂显示出进一步的优点，例如它们对在气体进料中加水不敏感，随运行时间的相对稳定性以及直接再生。其中第一步涉及由生物质降解产生的酒精混合物的脱水

  DOI：

  10.1039/c5cy00306g

文献信息

• HDEHP assisted solvothermal synthesis of monodispersed REPO₄ (RE = La–Lu, Y) nanocrystals and their photoluminescence properties
  作者：Zhen Yang、Guangzhen Yuan、Xiannan Duan、Shuai Liang、Guoxin Sun

  DOI：10.1039/c9nj05829j

  日期：——

  In this paper, a novel method is reported for the preparation of spherical REPO₄ particles.

  在这篇论文中，报道了一种新颖的方法，用于制备球形REPO₄颗粒。
• Relaxation and luminescence studies on hydrated bipyridyl- and terpyridyl-based lanthanide complexes
  作者：Vojtěch Kubíček、Anna Hamplová、Laurence Maribé、Samir Mameri、Raymond Ziessel、Éva Tóth、Loïc Charbonnière

  DOI：10.1039/b913084e

  日期：——

  complexes are faster than those of currently used contrast agents (k(ex)(298) = 14.0 +/- 1.5 x 10(6) and 11.1 +/- 1.1 x10(6) s(-1) for [GdL1(H(2)O)(2)] and [GdL2(H(2)O)(3)], respectively). The rotational correlation time calculated for [GdL1(H(2)O)(2)] appeared to be long (110 +/- 16 ps vs 65 +/- 5ps for [GdL2(H(2)O)(3)]), pointing to a hindered rotation due to the larger aromatic frame. Finally, the

  描述了基于2,2'-联吡啶的新的配体L2的合成，该2,2'-联吡啶被6位和6'位的羧酸盐官能团和亚甲基亚氨基二乙酸酯基团官能化。已制备并表征了其complex配合物[EuL2（H（2）O）（3）]。[EuL2（H（2）O）（3）]的光谱性质通过吸收，稳态和时间分辨发光光谱进行了研究。尽管L2表现出非常好的感光效率（η= 89％），但是该配合物的整体发光量子产率却很低（2.6％）。这是由于在第一个配位域中存在三个水分子而导致的强烈的非辐射失活所致，这一点在H（2）O和D（2）O中的发光寿命测量中得到了证明。用配体L2和L1获得的Gd（3+）配合物的弛豫特性 借助（17）O NMR和核磁弛豫分散体（NMRD）评估了后者在芳族核中含有一个额外的吡啶环。两种复合物的水交换率都比目前使用的造影剂的水交换率快（k（ex）（298）= 14.0 +/- 1.5 x 10（6）和11.1 +/- 1.1 x10（6）s（-1
• [EN] MULTIMODAL AGENTS FOR IMAGING<br/>[FR] AGENTS MULTIMODAUX D'IMAGERIE
  申请人：ECOLE NORM SUPERIEURE LYON

  公开号：WO2014125321A1

  公开（公告）日：2014-08-21

  The present invention relates to molecular agents having luminescent conjugated oligothiophenes linked through hydrosoluble connecting moieties to groups enabling binding to magnetic nanoparticles. The agents may be used in the diagnosis of diseases relating to protein misfolding.

  本发明涉及具有发光共轭寡噻吩的分子试剂，通过水溶性连接基团连接到使其能够与磁性纳米颗粒结合的基团。这些试剂可用于诊断与蛋白质错误折叠相关的疾病。
• Production of 1,3-butadiene in one step catalytic dehydration of 2,3-butanediol
  作者：N.T.T Nguyen、F. Matei-Rutkovska、M. Huchede、K. Jaillardon、G. Qingyi、C. Michel、J.M.M. Millet

  DOI：10.1016/j.cattod.2018.07.007

  日期：2019.2

  450 °C. All results showed that Lewis acid sites corresponding to the rare earth cations are involved in the dehydration of 2,3-butanediol into butadiene. This dehydration occurs with the intermediate formation of 3-buten-2ol, probably over acid-base concerted sites and the subsequent dehydration of 3BDOL to butadiene over weak Brønsted acid sites. All types of sites appear present on the catalysts surface

  已经设计了能够选择性地将2，3-丁二醇脱水成丁二烯的催化剂。这些基于稀土正磷酸盐的催化剂显示，仅在300°C的总转化率下，丁二烯的选择性可达58％，并且相对稳定。尽管可以通过向气体进料中加水来延迟失活，但这无法避免，必须进行再生。通过在空气中在450°C下进行简单的几个小时的热处理即可实现这种再生。所有结果表明，对应于稀土阳离子的路易斯酸位点参与了2，3-丁二醇脱水成丁二烯。这种脱水发生在3-丁烯2ol的中间形成过程中，可能在酸碱一致的位点上发生，随后3BDOL在弱的布朗斯台德酸位点上脱水成丁二烯。
• GdF₃as a promising phosphopeptide affinity probe and dephospho-labelling medium: experiments and theoretical explanation
  作者：Li-Ping Li、Jun-Zi Liu、Lin-Nan Xu、Ze Li、Yu Bai、Yun-Long Xiao、Hu-Wei Liu

  DOI：10.1039/c4cc04090b

  日期：——

  Bone-like GdF3 was synthesized and applied for phosphopeptide enrichment for the first time. As a new kind of efficient phosphopeptide affinity probe, GdF3 exhibits high efficiency in the mediation of the dephosphorylation reaction. In addition, DFT calculations were introduced to theoretically explain the unique property of GdF3 compared to GdPO4, which is promising and can be potentially significant in protein phosphorylation research.

  首次合成了类骨 GdF3 并将其应用于磷酸肽富集。作为一种新型高效的磷酸肽亲和探针，GdF3 在去磷酸化反应中表现出较高的介导效率。此外，还引入了 DFT 计算，从理论上解释了 GdF3 与 GdPO4 相比的独特性质，这在蛋白质磷酸化研究中具有重要的潜在意义。