ammonium hydrogen fluoride

• 分子结构分类: 无机化合物 - 均质非金属化合物 - 其他非金属卤化物
• 英文名称: ammonium hydrogen fluoride
• 英文别名: ammonium hydrogen bifluoride；ammonium hydrogen difluoride；ammonium hydrogendifluoride；ammonium hydrogenfluoride；ammonium dihydrofluoride；ammonium hydrodifluoride
• 化学式: F₂H*H₄N
• 分子量: 57.0432
• InChiKey: XIONBZYFLSJNBW-UHFFFAOYSA-O

计算性质

• 辛醇/水分配系数(LogP)：
  0.95
• 重原子数：
  3.0
• 可旋转键数：
  0.0
• 环数：
  0.0
• sp3杂化的碳原子比例：
  0.0
• 拓扑面积：
  36.5
• 氢给体数：
  1.0
• 氢受体数：
  0.0

反应信息

• 作为反应物：
  描述：

  ammonium hydrogen fluoride 在 feldspar 作用下， 以 水 为溶剂， 生成 potassium hexafluorosilicate
  参考文献：
  名称：

  AU1426891

  摘要：

  公开号：
• 作为产物：
  描述：

  氟化铵 以 水 为溶剂， 生成 ammonium hydrogen fluoride
  参考文献：
  名称：

  Study of fluoride treatment of silica-containing raw material

  摘要：

  An effect of ammonium hydrofluoride treatment of silica-containing raw material was examined. We described thermodynamics and kinetics of caking raw materials and their crushed materials, ammonium hexafluorosilicate sublimation, and amorphous silica formation. Constants of rate and activation energy of the chemical reactions were calculated.

  DOI：

  10.1134/s1070427211030013
• 作为试剂：
  描述：

  samarium(III) oxide 、 lanthanum(III) oxide 、 potassium carbonate 、 molybdenum(VI) oxide 在 ammonium hydrogen fluoride 作用下， 以 neat (no solvent, solid phase) 为溶剂， 反应 4.0h， 生成
  参考文献：
  名称：

  Fluorescent and chromatic properties of visible-emitting phosphor KLa(MoO4)2:Sm3+

  摘要：

  Sm3+ doped KLa(MoO4)(2) phosphors were synthesized via a high-temperature solid-state reaction. The crystal structure of the phosphors was examined with XRD and a pure phase was confirmed. The photoluminescence (PL) spectra display dependence on both excitation wavelength and Sm3+ doping concentration. The concentration quenching behavior was studied and the possible relaxation channel for self-quenching of luminescence centers was discussed. The electric dipole-dipole interaction is confirmed to be the dominant mechanism for energy transfer between Sm3+ ions on the basis of both Van Uitert's and Dexter's models. The chromatic characteristics are also found to be dependent on both excitation wavelength and Sm3+ doping concentration. (C) 2013 Elsevier B.V. All rights reserved.

  DOI：

  10.1016/j.jallcom.2013.01.063

文献信息

• The role of ammonia in promoting ammonia borane synthesis
  作者：P. Veeraraghavan Ramachandran、Ameya S. Kulkarni

  DOI：10.1039/c6dt02925f

  日期：——

  Ammonia promotes the synthesis of pure ammonia borane (AB) in excellent yields from sodium borohydride and ammonium sulfate in tetrahydrofuran under ambient conditions. An examination of the influence of added ammonia reveals that it is incorporated into the product AB, contrary to its perceived function as a catalyst or a co-solvent. Mechanistic studies point to a nucleophilic attack by ammonia on

  在环境条件下，氨可促进硼氢化钠和硫酸铵在四氢呋喃中的合成，从而以极高的产率促进纯氨硼烷（AB）的合成。对添加的氨的影响进行的检查表明，将其掺入到产品AB中，与其感知到的作为催化剂或助溶剂的功能相反。机理研究表明，氨对硼氢化铵具有亲核攻击，并同时脱氢生成AB。
• Synthesis and Nanoscale Characterization of (NH₄)₄ThF₈ and ThNF
  作者：G. W. Chinthaka Silva、Charles B. Yeamans、Gary S. Cerefice、Alfred P. Sattelberger、Kenneth R. Czerwinski

  DOI：10.1021/ic900632g

  日期：2009.7.6

  Synthesis of (NH4)4ThF8 by a solid state reaction of ThO2 and NH4HF2 and the formation of ThNF by ammonolysis of (NH4)4ThF8 and ThF4 under different experimental conditions were investigated. The solid state reaction of ThO2 with NH4HF2 led to the terminal product (NH4)4ThF8 through a known intermediate (NH4)3ThF7 and most likely two other unknown chemical phases as determined by X-ray powder diffraction

  研究了在不同的实验条件下，ThO 2和NH 4 HF 2的固相反应合成（NH 4）4 ThF 8以及通过（NH 4）4 ThF 8和ThF 4的氨解形成ThNF 。ThO 2与NH 4 HF 2的固态反应通过已知的中间体（NH 4）3 ThF 7导致最终产物（NH 4）4 ThF 8X射线粉末衍射法确定的最可能的另外两个未知化学相。（NH 4）4 ThF 8通过ThF 4中间相转化为ThNF 。对ThF 4氨解的研究表明，它会通过连续形成低化学计量的氮化-氟化物（例如ThN 0.79 F 1.63和ThN 0.9 F 1.3）而转化为ThNF 。在不同的气氛和温度下，还检查了ThNF的热行为，并评估了形成动力学。ThNF分解为低化学计量的氮化or氟化物（ThN x / 3 F 4-x）在最高1100°C的不同环境下。与前体相比，产物的形态发生了重大变化，证实了所涉及的反应步骤。HRTEM对（NH
• Subvalent Group 4B metal alkyls and amides. Part II. The chemistry and properties of bis[bis(trimethylsilyl)methyl]tin(II) and its lead analogue
  作者：John D. Cotton、Peter J. Davidson、Michael F. Lappert

  DOI：10.1039/dt9760002275

  日期：——

  Bis[bis(trimethylsiiyl)methyl]tin, SnR2, has an extensive chemistry, behaving as (i) a Lewis base, (ii) a Lewis acid, or (iii) undergoing oxidative addition (insertion reactions). The following complexes have been isolated, many as well characterised crystals. For class (i), these include (M = Cr or Mo)[M(CO)5(SnR2)], trans-[M(CO)4-(SnR2)2], [Fe2(η-C5H5)2(CO)3(SnR2)], [RhCl(PPh3)2(SnR2)], and [PtC

  双[双（三甲基硅烷基）甲基]锡SnR 2具有广泛的化学性质，表现为（i）路易斯碱，（ii）路易斯酸或（iii）经历氧化加成（插入反应）。已分离出以下配合物，以及许多具有特征的晶体。对于（i）类，它们包括（M = Cr或Mo）[M（CO）5（SnR 2）]，反式-[M（CO）4-（SnR 2）2 ]，[Fe 2（η-C）5 H 5）2（CO）3（SnR 2）]，[RhCl（PPh 3）2（SnR 2）]和[PtCl（PEt 3）（SnR 2）（SnR 2 Cl）]：对于（ii）类，易于与吡啶，4-甲基吡啶或哌啶热解离的1：1加合物，以及类（III），SNR 2（A）B（AB =氯化氢，氟化氢，将MeI，RCL，氯2，溴，O- 2，CH 2：CMeCMe：CH 2，[沫（η-C 5 H ^ 5）（ CO）3 X]（X = H或Me），的[Fe（η-C 5 H ^ 5）（CO）2 X]（X = Cl或Me）时，[的Fe（CO）4
• New Fluorination Reactions of Ammonium Bifluoride
  作者：Jasbinder S. Sanghera、Patricia Hart、Maria G. Sachon、Ken J. Ewing、Ishwar Aggarwal

  DOI：10.1111/j.1151-2916.1990.tb05202.x

  日期：1990.5

  between ammonium bifluoride and specific anhydrous and hydrated metal fluoride salts. The products are defined as ammonium fluoride–metal fluoride complexes. The kinetics of their formation and subsequent dissociation were followed by thermogravimetric analysis. It was observed that these complexes decompose with the evolution of HF above temperatures at which ammonium bifluoride decomposes and where

  本文介绍了一种生产低氧氟锆酸盐玻璃的新途径。该过程涉及在氟化氢铵与特定的无水和水合金属氟化物盐之间使用迄今为止未知的固态化学反应。产品定义为氟化铵-金属氟化物配合物。它们的形成和随后解离的动力学随后进行热重分析。观察到这些配合物在高于氟化氢铵分解且其供应可能耗尽的温度下随着HF的放出而分解。这些材料已用于熔化氟锆酸盐玻璃。这些玻璃的氧含量已显着降低至约 10 ppm。玻璃稳定性，定义为重新加热时没有失透，也似乎随着氧含量的降低而增加。这意味着成核和生长的机制主要是异质成核而不是均质成核。此外，为跨大陆光通信系统生产长长度的无晶体氟化物光纤似乎是一个现实的目标，特别是如果可以消除异质性。
• Strong H···F Hydrogen Bonds as Synthons in Polymeric Quantum Magnets: Structural, Magnetic, and Theoretical Characterization of [Cu(HF₂)(pyrazine)₂]SbF₆, [Cu₂F(HF)(HF₂)(pyrazine)₄](SbF₆)₂, and [CuAg(H₃F₄)(pyrazine)₅](SbF₆)₂
  作者：Jamie L. Manson、John A. Schlueter、Kylee A. Funk、Heather I. Southerland、Brendan Twamley、Tom Lancaster、Stephen J. Blundell、Peter J. Baker、Francis L. Pratt、John Singleton、Ross D. McDonald、Paul A. Goddard、Pinaki Sengupta、Cristian D. Batista、Letian Ding、Changhoon Lee、Myung-Hwan Whangbo、Isabel Franke、Susan Cox、Chris Baines、Derek Trial

  DOI：10.1021/ja808761d

  日期：2009.5.20

  6))(2) (1b), and [CuAg(H(3)F(4))(pyz)(5)](SbF(6))(2) (2) crystallize in either tetragonal or orthorhombic space groups; their structures consist of 2D square layers of [M(pyz)(2)](n+) that are linked in the third dimension by either HF(2)(-) (1a and 1b) or H(3)F(4)(-) (2). The resulting 3D frameworks contain charge-balancing SbF(6)(-) anions in every void. Compound 1b is a defective polymorph of 1a

  合成了三种含 Cu(2+) 的配位聚合物，并通过实验（X 射线衍射、磁化率、脉冲场磁化、热容和 μ 子自旋弛豫）和电子结构研究（量子蒙特卡罗模拟和密度）表征泛函理论计算）。[Cu(HF(2))(pyz)(2)]SbF(6) (pyz = pyrazine) (1a), [Cu(2)F(HF)(HF(2))(pyz)(4)] (SbF(6))(2) (1b) 和 [CuAg(H(3)F(4))(pyz)(5)](SbF(6))(2) (2) 以四方晶系或四方晶系结晶正交空间群；它们的结构由 [M(pyz)(2)](n+) 的 2D 方形层组成，这些层通过 HF(2)(-)（1a 和 1b）或 H(3)F(4) 在第三维中连接(-) (2)。由此产生的 3D 框架在每个空隙中都包含电荷平衡 SbF(6)(-) 阴离子。化合物 1b 是 1a 的缺陷多晶型物，不同之处在于前者中 50% 的 HF(2)(-)