Sodium;erbium(3+);tetrafluoride | 14118-36-6

• 分子结构分类: 无机化合物 - 混合金属/非金属化合物 - 镧系盐
• 英文名称: Sodium;erbium(3+);tetrafluoride
• CAS: 14118-36-6
• 化学式: ErF₄*Na
• 分子量: 266.243
• InChiKey: XUTYDKBOCRJZFT-UHFFFAOYSA-J

计算性质

• 辛醇/水分配系数(LogP)：
  -14.98
• 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：
  0
• 氢给体数：
  0
• 氢受体数：
  4

反应信息

• 作为产物：
  描述：

  氟化铒 、 sodium fluoride 以 solid 为溶剂， 生成 Sodium;erbium(3+);tetrafluoride
  参考文献：
  名称：

  Mechanochemical Synthesis of Nano-sized Complex Fluorides from Pair of Different Constituent Fluoride Compounds

  摘要：

  复合氟化物ARF4（A = Li、Na、K，R = 稀土）是通过AF和RF3粉末在室温下使用行星球磨机进行机械化学固体反应合成的。反应随着研磨时间的增加而进行，并在4小时后完成。透射电子显微镜观察显示，产生的ARF4粉末由纳米级初级颗粒的团聚体组成，表现出中等的水溶性。当研磨的样品被煅烧时，粒径增加，水溶性降低。

  DOI：

  10.1246/cl.2002.1176

文献信息

• Noninvasive Early Diagnosis of Allograft Rejection by a Granzyme B Protease Responsive NIR‐II Bioimaging Nanosensor
  作者：Ying Chen、Peng Pei、Yiwei Yang、Hongxin Zhang、Fan Zhang

  DOI：10.1002/anie.202301696

  日期：2023.6.5

  Early diagnosis of allograft rejection helps to improve the immune‐related management of transplant recipients. The clinically‐used core needle biopsy method is invasive and subject to sampling error. In vivo fluorescence imaging for monitoring immune‐related processes has the advantages of non‐invasiveness, fast feedback and high sensitivity. Herein, we report a responsive second near‐infrared (NIR‐II) fluorescent nanosensor (ErGZ) to detect early allograft rejection. ErGZ allows ratiometric in vivo fluorescence sensing of granzyme B, which is overexpressed in recipients’ T cells during the onset of rejection. The sensor demonstrates efficacious detection of allograft rejection with high sensitivity and specificity, which accomplishes non‐invasive diagnosis of rejection in skin and deep buried islets transplant mice models 2 d and 5 d earlier than biopsy, by in vivo fluorescence imaging and urinary detection, respectively, providing a valuable approach for therapeutical management.

  摘要 早期诊断异体移植排斥反应有助于改善移植受者的免疫相关管理。临床上使用的核心针活检方法具有创伤性，而且容易出现取样误差。用于监测免疫相关过程的体内荧光成像具有无创、反馈快和灵敏度高等优点。在此，我们报告了一种反应灵敏的第二近红外（NIR-II）荧光纳米传感器（ErGZ），用于检测早期异体移植排斥反应。ErGZ 可在体内对颗粒酶 B 进行比率荧光传感，颗粒酶 B 在排斥反应开始时会在受者的 T 细胞中过度表达。该传感器能有效检测同种异体移植排斥反应，灵敏度和特异性都很高，在皮肤和深埋胰岛移植小鼠模型中，通过体内荧光成像和尿液检测，可分别比活检提前 2 天和 5 天对排斥反应进行无创诊断，为治疗管理提供了一种有价值的方法。
• Coprecipitation from aqueous solutions to prepare binary fluorides
  作者：P. P. Fedorov、S. V. Kuznetsov、M. N. Mayakova、V. V. Voronov、R. P. Ermakov、A. E. Baranchikov、V. V. Osiko

  DOI：10.1134/s003602361110007x

  日期：2011.10

  The synthesis of binary fluoride phases, specifically nanofluorides, by coprecipitation from aqueous solutions is considered in terms of phase equilibria. Phases have been precipitated in NaF-RF3 systems (where R stands for a rare-earth element), MF2-YF3 systems (where M = Ca, Sr, Ba), BaF2-ScF3, and CaF2-BaF2 systems. In the MF2-YF3 systems, unordered metastable congruently soluble phases are precipitated instead of ordered fluorite-like phases. In the BaF2-ScF3 system, the congruently soluble compound Ba3Sc2F12 is precipitated. In the NaF-RF3 systems, incongruently soluble metastable phases with a fluorite-like structure (for R = Er, Lu, Y) and the gagarinite structure (NaGdF4) are formed. In the CaF2-BaF2 system, intermediate phases have not been formed.
• Branched NaYF₄ Nanocrystals with Luminescent Properties
  作者：Xin Liang、Xun Wang、Jing Zhuang、Qing Peng、Yadong Li

  DOI：10.1021/ic700523x

  日期：2007.7.1

  In this article, branched NaYF4 nanocrystals have been successfully synthesized via a simple hydrothermal method. On the basis of the analysis of HRTEM and TEM images, the growth modes of the branched structure and further branching behavior have been proposed. The up- and down-conversion luminescence of branched NaYF4:Er3+/Yb3+ and NaYF4:Eu3+ have been characterized. Multiarmed NaYF4 phosphors can be introduced into polystyrene to form composite luminescent polymers because of its special geometrical shape. In conclusion, the luminescent branched particles should be of wide potential application as building blocks in the future nanoscience and nanotechnology.
• Mechanochemical Synthesis of Nano-sized Complex Fluorides from Pair of Different Constituent Fluoride Compounds
  作者：Jinfeng Lu、Qiwu Zhang、Fumio Saito

  DOI：10.1246/cl.2002.1176

  日期：2002.12

  Complex fluorides ARF4 (A = Li, Na, K, R = rare earthes) are synthesized by the mechanochemical solid reactions of AF and RF3 powders at room temperature using a planetary ball mill. The reactions proceed with the increase of grinding time and have been completed at 4 h. Transmission electron microscope observation shows that the produced ARF4 powders consist of agglomerates of nano-sized primary particles, which exhibit moderate water solubility. When the ground sample is calcined, the particle size is increased and the water solubility is depressed.

  复合氟化物ARF4（A = Li、Na、K，R = 稀土）是通过AF和RF3粉末在室温下使用行星球磨机进行机械化学固体反应合成的。反应随着研磨时间的增加而进行，并在4小时后完成。透射电子显微镜观察显示，产生的ARF4粉末由纳米级初级颗粒的团聚体组成，表现出中等的水溶性。当研磨的样品被煅烧时，粒径增加，水溶性降低。