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hydrogen chromate(1-) | 15596-54-0

中文名称
——
中文别名
——
英文名称
hydrogen chromate(1-)
英文别名
hydrogen chromate;Chromate (CrO42-), hydrogen;hydroxy-oxido-dioxochromium
hydrogen chromate(1-)化学式
CAS
15596-54-0
化学式
CrHO4
mdl
——
分子量
117.002
InChiKey
SNQOSLDJBAESSM-UHFFFAOYSA-M
BEILSTEIN
——
EINECS
——
  • 物化性质
  • 计算性质
  • ADMET
  • 安全信息
  • SDS
  • 制备方法与用途
  • 上下游信息
  • 反应信息
  • 文献信息
  • 表征谱图
  • 同类化合物
  • 相关功能分类
  • 相关结构分类

物化性质

  • 熔点:
    >300 °C

计算性质

  • 辛醇/水分配系数(LogP):
    -1.99
  • 重原子数:
    5
  • 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:
    77.4
  • 氢给体数:
    1
  • 氢受体数:
    4

SDS

SDS:0e0629da8242d683f7f5126a867de0b1
查看

反应信息

  • 作为反应物:
    描述:
    参考文献:
    名称:
    Kagan, H.; Bonnemay, M., Chrome Dur, 1958, p. 38 - 51
    摘要:
    DOI:
  • 作为产物:
    描述:
    铬酸盐(VI)离子 在 H2O 作用下, 以 为溶剂, 生成 hydrogen chromate(1-)
    参考文献:
    名称:
    Gmelin Handbuch der Anorganischen Chemie, Gmelin Handbook: Cr: MVol.B, 243, page 537 - 539
    摘要:
    DOI:
  • 作为试剂:
    描述:
    甘露醇高氯酸hydrogen chromate(1-) 作用下, 以 为溶剂, 生成 D-甘露糖
    参考文献:
    名称:
    Soni, Narendra K.; Sharma, Gayatri; Khandelwal, Journal of the Indian Chemical Society, 2007, vol. 84, # 12, p. 1210 - 1215
    摘要:
    DOI:
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文献信息

  • Hydrogen-Atom Transfer from Transition Metal Hydroperoxides, Hydrogen Peroxide, and Alkyl Hydroperoxides to Superoxo and Oxo Metal Complexes
    作者:Michael J. Vasbinder、Andreja Bakac
    DOI:10.1021/ic070015z
    日期:2007.4.1
    L(H2O)RhOOH2+ --> L(H2O)CrOOH2+ + L(H2O)RhOO2+. All of the measured rate constants fall in a narrow range, 17-135 M-1 s-1. These values are about 2.5-3.0 times smaller in D2O, where the hydroperoxo hydrogen is replaced by deuterium, and coordinated molecules of water by D2O. The failure of the back reaction to take place in the available concentration range places the O-H bond dissociation energy in
    超氧铬(III)络合物L(H2O)CrOO2 +(L =(H2O)4和1,4,8,11-四氮杂环十四烷)在明显的氢原子转移过程中氧化铑和钴的氢过氧络合物,即L(H2O) CrOO2 + + L(H2O)RhOOH2 +-> L(H2O)CrOOH2 + + L(H2O)RhOO2 +。所有测得的速率常数都在一个狭窄的范围内,即17-135 M-1 s-1。这些值在D2O中小约2.5-3.0倍,其中氢过氧氢被氘取代,水配位分子被D2O取代。在可用浓度范围内无法发生逆反应,RhOO-H2 +中的OH键解离能为或两种反应的驱动力为80 kJ / mol)。铬离子CrIVaqO2 +将L(H2O)RhOOH2 +和钴类似物氧化为相应的超氧配合物。速率常数大约比用CraqOO2 +氧化的速率常数大102倍。CrIVaqO2 +对叔-BuOOH的氧化具有k = 160 M-1 s-1,并表现出同位素效应kBuOOH
  • Kinetics and mechanism of the oxidation of disaccharides by Cr<sup>VI</sup>
    作者:Viviana Roldán、Juan Carlos González、Mabel Santoro、Silvia García、Nieves Casado、Silvina Olivera、Juan Carlos Boggio、Juan Manuel Salas-Peregrin、Sandra Signorella、Luis F Sala
    DOI:10.1139/v02-187
    日期:2002.12.1

    The oxidation of D-lactose, D-maltose, D-melibiose, and D-cellobiose by CrVI yields the corresponding aldobionic acid and Cr3+ as final products when an excess of reducing disaccharide over CrVI is used. The rate law for the CrVI oxidation reaction is expressed by –d[CrVI]/dt = kH [disaccharide][CrVI], where the second-order kinetic constant, kH, depends on [H+]. The relative reactivity of the disaccharides with CrVI is expressed as follows: Mel > Lac > Cel > Mal, at 33°C. In acid medium, intermediate CrV forms and reacts with the substrate faster than CrVI. The EPR spectra show that five- and six-coordinate oxo-CrV intermediates are formed, with the disaccharide acting as bidentate ligand. Five-coordinate oxo-CrV species are present at any [H+], whereas six-coordinate ones are observed only at pH < 2, where they rapidly decompose to the redox products. In the pH 3–7 range, where hexa-coordinate oxo-CrV species are not observed, CrV complexes are stable enough to remain in solution from several days to several months.Key words: chromium, saccharides, kinetics, EPR.

    D-乳糖、D-麦芽糖、D-蜜糖和D-纤维二糖在过量还原性二糖与CrVI反应时,产生相应的醛糖酸和Cr3+作为最终产物。CrVI氧化反应的速率定律表示为–d[CrVI]/dt = kH [二糖][CrVI],其中二阶动力学常数kH取决于[H+]。在33°C下,二糖与CrVI的相对反应性表现为:蜜糖 > 乳糖 > 纤维二糖 > 麦芽糖。在酸性介质中,中间体CrV形成并比CrVI更快地与底物反应。EPR光谱表明,二糖作为双齿配体,形成了五配位和六配位氧CrV中间体。五配位氧CrV物种存在于任何[H+]下,而六配位物种仅在pH < 2时观察到,它们迅速分解为氧化还原产物。在pH 3–7范围内,六配位氧CrV物种不被观察到,CrV络合物足够稳定,可以在溶液中保持几天到几个月。关键词:铬,糖类,动力学,EPR。
  • A Light Reaction with Negative Temperature Coefficient
    作者:K. WEBER、S. AŠPERGER
    DOI:10.1038/157373b0
    日期:1946.3.23
    With increasing temperature this equilibrium is displaced in such a manner that the concentration of one of the reacting components diminishes, and, consequently, the resulting reaction velocity decreases. It is evident that a negative temperature coefficient is more easily attained the more the equilibrium depends on the rise of temperature and the less the velocity-determining reaction depends on it
    我们赋予负温度系数,即温度商小于 1 的化学反应,其速度随温度升高而降低。这些反应很少被观察到,但已经通过实验实现了一些显着的例子。这种现象可以通过假设反应速度决定部分之前的化学平衡来解释。随着温度升高,这种平衡以这样一种方式被取代,即反应组分之一的浓度降低,从而导致反应速度降低。很明显,平衡越依赖于温度的升高并且决定速度的反应越不依赖于它,就越容易获得负温度系数。光反应的速度通常几乎与温度无关,活化能(至少大部分)由系统吸收的光提供。我们认为,在光反应领域,如果可以找到具有“先行平衡”及其对温度依赖性的机制的反应,那么负温度效应可能会比现在更频繁地被观察到。
  • Synthesis and Characterization of a Chromium(V) <i>cis</i>-Dioxo Bis(1,10-phenanthroline) Complex and Crystal and Molecular Structures of Its Chromium(III) Precursor
    作者:Colin L. Weeks、Aviva Levina、Carolyn T. Dillon、Peter Turner、Ronald R. Fenton、Peter A. Lay
    DOI:10.1021/ic049008q
    日期:2004.11.1
    well-studied Cr(V) 2-hydroxycarboxylato complexes, 2 was equally or more stable in aqueous media (hours at pH=1-13 and 25 degrees C) compared with polar aprotic solvents. A stable Cr(III)-Cr(VI) dimer, [Cr(III)(Cr(VI)O4)(phen)2]+ (detected by ESMS), is formed during the decomposition of 2 in nonaqueous media. Comparative studies of the oxidation of 1 by NaOCl or PbO2 have shown that [Cr(V)(O)2(phen)2]+
    通过氧化相关的Cr(III)合成了第一个具有结构特征的Cr(V)二氧杂配合物cis- [CrV(O)2(phen)2](BF4)(2,phen = 1,10-菲咯啉) )络合物,顺式[[Cr(III)(phen)2(OH2)2](NO3)3.2.5H2O(1,通过X射线晶体学表征),与NaOCl在水溶液中存在过量的NaBF4,及其纯度已通过电喷雾质谱(ESMS),EPR光谱和分析技术得到证实。ESMS已显示先前报道的生成Cr(V)-phen配合物的方法,例如用PbO2或PhIO氧化1,会导致Cr(III),Cr(V),Cr(VI)的混合物,在某些情况下为Cr(IV)物种。3.根据ESMS和X射线吸收光谱测量,将物种3分配为[CrIV(O)(OH)(phen)2] +。2(CrO,1.63 A; Cr-N,2.04 and 2。通过XAFS光谱的多散射(MS)建模(固体,10 K)建立了16
  • Disproportionation of Aquachromyl(IV) Ion by Hydrogen Abstraction from Coordinated Water
    作者:Attila Nemes、Andreja Bakac
    DOI:10.1021/ic0013577
    日期:2001.6.1
    aqueous solutions, the aquachromyl(IV) ion, Cr(aq)O(2+), disproportionates to Cr(aq)(3+) and HCrO(4)(-). The reaction exhibits second-order kinetics with an inverse [H(+)] dependence, -d[Cr(aq)O(2+)]/dt = 38.8[Cr(aq)O(2+)](2)[H(+)](-1) at 25 degrees C. The combination of the rate law and substantial kinetic isotope effect, k(H)/k(D) = 6.9, suggests a mechanism whereby a hydrogen atom is abstracted from
    在水溶液中,水铬基(IV)离子Cr(aq)O(2+)与Cr(aq)(3+)和HCrO(4)(-)歧化。该反应显示出具有[H(+)]反依赖性的二阶动力学,-d [Cr(aq)O(2 +)] / dt = 38.8 [Cr(aq)O(2 +)](2)[ H(+)](-1)在25摄氏度时发生。速率定律和基本动力学同位素效应k(H)/ k(D)= 6.9的组合表明了一种从配位原子中提取氢原子的机理单个去质子化过渡态中的水或羟基基团分子。铬酸盐的形成比铬基的丢失更复杂,并且速度稍慢,这表明中间体的参与。
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