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cesium bromide

中文名称
——
中文别名
——
英文名称
cesium bromide
英文别名
cesium;bromide
cesium bromide化学式
CAS
——
化学式
BrCs
mdl
——
分子量
212.809
InChiKey
LYQFWZFBNBDLEO-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

计算性质

  • 辛醇/水分配系数(LogP):
    -5.99
  • 重原子数:
    2
  • 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:
    1

ADMET

代谢
溴主要通过吸入进入人体,但也可以通过皮肤接触。溴盐可以摄入。由于溴的活性,它会迅速形成溴化物并可能沉积在组织中,取代其他卤素。
Bromine is mainly absorbed via inhalation, but may also enter the body through dermal contact. Bromine salts can be ingested. Due to its reactivity, bromine quickly forms bromide and may be deposited in the tissues, displacing other halogens. (L626)
来源:Toxin and Toxin Target Database (T3DB)
毒理性
  • 毒性总结
溴是一种强大的氧化剂,能够从粘膜的水分中释放出氧自由基。这些自由基也是有力的氧化剂,能够造成组织损伤。此外,氢溴酸和溴酸的形成将导致二次刺激。溴离子还已知会影响中枢神经系统,导致溴中毒。这被认为是溴离子取代神经递质和传输系统中的氯离子的结果,从而影响许多突触过程。(L626, L627, A543)
Bromine is a powerful oxidizing agent and is able to release oxygen free radicals from the water in mucous membranes. These free radicals are also potent oxidizers and produce tissue damage. In additon, the formation of hydrobromic and bromic acids will result in secondary irritation. The bromide ion is also known to affect the central nervous system, causing bromism. This is believed to be a result of bromide ions substituting for chloride ions in the in actions of neurotransmitters and transport systems, thus affecting numerous synaptic processes. (L626, L627, A543)
来源:Toxin and Toxin Target Database (T3DB)
毒理性
  • 致癌物分类
对人类不具有致癌性(未被国际癌症研究机构IARC列名)。
No indication of carcinogenicity to humans (not listed by IARC).
来源:Toxin and Toxin Target Database (T3DB)
毒理性
  • 健康影响
溴蒸气会引起刺激和对粘膜的直接损害。元素溴也会烧伤皮肤。溴化物离子是一种中枢神经系统抑制剂,长期暴露会产生神经元效应。这被称为溴中毒,可能导致从中睡意到昏迷、恶病质、昏迷、反射丧失或病理反射、阵挛性癫痫、震颤、共济失调、神经敏感性丧失、瘫痪、眼乳头水肿、言语异常、脑水肿、谵妄、攻击性和精神病的中心反应。
Bromine vapour causes irritation and direct damage to the mucous membranes. Elemental bromine also burns the skin. The bromide ion is a central nervous system depressant and chronic exposure produces neuronal effects. This is called bromism and can result in central reactions reaching from somnolence to coma, cachexia, exicosis, loss of reflexes or pathologic reflexes, clonic seizures, tremor, ataxia, loss of neural sensitivity, paresis, papillar edema of the eyes, abnormal speech, cerebral edema, delirium, aggressiveness, and psychoses. (L625, L626, L627)
来源:Toxin and Toxin Target Database (T3DB)
毒理性
  • 暴露途径
口服(L626);吸入(L626);皮肤给药(L626)
Oral (L626) ; inhalation (L626) ; dermal (L626)
来源:Toxin and Toxin Target Database (T3DB)
毒理性
  • 症状
溴蒸气会引起刺激和对粘膜的直接损害。症状包括流泪、流鼻涕、眼部刺激伴有来自咽和上呼吸道的粘液分泌、咳嗽、呼吸困难、窒息、喘息、鼻出血和头痛。溴离子是一种中枢神经系统抑制剂,会引起共济失调、言语不清、震颤、恶心、呕吐、乏力、眩晕、视觉障碍、不稳、头痛、记忆和注意力受损、定向障碍和幻觉。这被称为溴中毒。
Bromine vapour causes irritation and direct damage to the mucous membranes. Symptoms include lacrimation, rhinorrhoea, eye irritation with mucous secretions from the oropharyngeal and upper airways, coughing, dyspnoea, choking, wheezing, epistaxis, and headache. The bromide ion is a central nervous system depressant producing ataxia, slurred speech, tremor, nausea, vomiting, lethargy, dizziness, visual disturbances, unsteadiness, headaches, impaired memory and concentration, disorientation and hallucinations. This is called bromism. (L626, L627)
来源:Toxin and Toxin Target Database (T3DB)

反应信息

  • 作为反应物:
    描述:
    3,5-difluoro-1,2,4,6-thiatriazin-1-ium;hexafluoroarsenic(1-) 、 cesium bromide 以78%的产率得到
    参考文献:
    名称:
    FISCHER, EBERHARD;JAODAS-PREZEL, EVELINE;MAGGIULLI, ROBERTO;MEWS, RUDIGER+, CHEM. BER., 124,(1991) N, C. 1347-1352
    摘要:
    DOI:
  • 作为试剂:
    描述:
    BOC-D-色氨酸Dicaesio carbonate3-溴-2-丁酮乙酸铵cesium bromide碳酸氢钠 、 Brine 、 magnesium sulfate 、 silica gel 作用下, 以 乙醇N,N-二甲基甲酰胺邻二甲苯乙酸乙酯 为溶剂, 反应 3.75h, 以to afford 3 g of the desired product as a white powder的产率得到Tert-butyl (1R)-1-(4,5-Dimethyl-1,3-oxazol-2-yl)-2-(1H-indol-3-yl)ethylcarbamate
    参考文献:
    名称:
    &bgr;-carboline compounds
    摘要:
    本发明涉及一种公式化合物,其中变量在规范中定义,其能够结合生长抑素受体并阻断Na通道。
    公开号:
    US06586445B1
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文献信息

  • Octadecylamine‐Functionalized Single‐Walled Carbon Nanotubes for Facilitating the Formation of a Monolithic Perovskite Layer and Stable Solar Cells
    作者:Vincent Tiing Tiong、Ngoc Duy Pham、Teng Wang、Tianxiang Zhu、Xinluo Zhao、Yaohong Zhang、Qing Shen、John Bell、Linhua Hu、Songyuan Dai、Hongxia Wang
    DOI:10.1002/adfm.201705545
    日期:2018.3
    approach is developed to synthesize perovskite films consisting of monolithic‐like grains with micrometer size through in situ deposition of octadecylamine functionalized singlewalled carbon nanotubes (ODA‐SWCNTs) onto the surface of the perovskite layer. The ODA‐SWCNTs form a capping layer that controls the evaporation rate of organic solvents in the perovskite film during the postthermal treatment
    由于其优异的光学和电子性能,有机-无机卤化铅钙钛矿具有广阔的应用前景。为了获得高性能的钙钛矿太阳能电池,需要使用具有大晶粒的钙钛矿光吸收层,以便在设备运行期间最大程度地减少晶界和复合。本文中,开发了一种简单而有效的方法,通过将十八烷基胺官能化的单壁碳纳米管(ODA-SWCNT)原位沉积在钙钛矿层的表面上来合成具有微米级尺寸的整体样晶粒的钙钛矿膜。ODA-SWCNT形成覆盖层,该覆盖层控制后热处理过程中钙钛矿膜中有机溶剂的蒸发速率。这种有利的形态反过来大大增强了钙钛矿型太阳能电池的短路电流密度,并几乎完全消除了滞后现象。使用(FA0.83 MA 0.17)0.95 Cs 0.05 Pb(I 0.83 Br 0.17)3作为光吸收剂。此外,具有ODA-SWCNT的钙钛矿太阳能电池表现出非凡的稳定性,在高湿度(60-90%)的环境下经过45天的稳定性测试后,其性能保持率高达80%。这项工作为钙钛
  • Method of producing aromatic carbonate
    申请人:Mitsubishi Chemical Corporation
    公开号:US05543547A1
    公开(公告)日:1996-08-06
    The present invention relates to a method of producing an aromatic carbonate by reacting an aromatic hydroxy compound, carbon monoxide and oxygen using as a catalyst a specified catalyst system containing palladium and cerium compounds. Specifically, the present invention relates to a method of producing an aromatic carbonate by reacting an aromatic hydroxy compound, carbon monoxide and oxygen in the presence of a catalyst containing the following compounds: (A) at least one selected from palladium and palladium compounds; (B) at least one of trivalent or tetravalent cerium compounds; (C) at least one selected from quaternary ammonium salts and quaternary phosphonium salts; (D) at least one selected from quinones and reduction products thereof, i.e., aromatic diols; or (A) and (B) components of the above; and (E) at least one inorganic halide selected from alkali metal halides and alkali earth metal halides.
    本发明涉及一种通过使用含有钯和铈化合物的特定催化剂体系,通过反应芳香羟基化合物、一氧化碳和氧来生产芳香碳酸酯的方法。具体而言,本发明涉及一种通过在催化剂的存在下反应芳香羟基化合物、一氧化碳和氧来生产芳香碳酸酯的方法,所述催化剂包含以下化合物:(A)至少选自钯和钯化合物之一;(B)三价或四价铈化合物之一;(C)至少选自季铵盐和季膦盐之一;(D)至少选自醌和其还原产物,即芳香二酚;或者(A)和(B)上述组分;以及(E)至少选自碱金属卤化物和碱土金属卤化物之一的无机卤化物。
  • CsPbBr<sub>3</sub> Perovskite Nanocrystals for Photocatalytic [3+2] Cycloaddition
    作者:Yixiong Lin、Yong Yan
    DOI:10.1002/cssc.202301060
    日期:2024.1.8
    Abstract

    Visible‐light‐induced halide‐exchange between halide perovskite and organohalide solvents has been studied in which photoinduced electron transfer from CsPbBr3 nanocrystals (NCs) to dihalomethane solvent molecules produces halide anions via reductive dissociation, followed by a spontaneous anion‐exchange. Photogenerated holes in this process are less focused. Here, for CsPbBr3 in dibromomethane (DBM), we discover that Br radical (Br⋅) is a key intermediate resulting from the hole oxidation. We successfully trapped Br⋅ with reported methods and found that Br⋅ is continuously generated in DBM under visible light irradiation, hence imperative for catalytic reaction design. Continuous Br⋅ formation within this halide‐exchange process is active for photocatalytic [3+2] cycloaddition for vinylcyclopentane synthesis, a privileged scaffold in medicinal chemistry, with good yield and rationalized diastereoselectivity. The NC photocatalyst is highly recyclable due to Br‐based self‐healing, leading to a particularly economic and neat heterogeneous reaction where the solvent DBM also acts as a co‐catalyst in perovskite photocatalysis. Halide perovskites, notable for efficient solar energy conversion, are demonstrated as exceptional photocatalysts for Br radical‐mediated [3+2] cycloaddition. We envisage such perovskite‐induced Br radical strategy may serve as a powerful chemical tool for developing valuable halogen radical‐involved reactions.

    摘要 研究了可见光诱导的卤化物过氧化物和有机卤化物溶剂之间的卤化物交换,其中 CsPbBr3 纳米晶体(NCs)和二卤甲烷溶剂分子之间的光诱导电子转移通过还原解离产生了卤化物阴离子,随后发生了自发的阴离子交换。在这一过程中光生成的空穴不太集中。在这里,对于二溴甲烷(DBM)中的 CsPbBr3,我们发现 Br 自由基(Br⋅)是空穴氧化产生的关键中间产物。我们采用已报道的方法成功捕获了 Br⋅,并发现在可见光照射下,DBM 中会持续产生 Br⋅,因此催化反应设计势在必行。在这一卤化物交换过程中,Br⋅的连续生成可用于光催化[3+2]环加成法合成乙烯基环戊烷(药物化学中的一种重要支架),并具有良好的产率和合理的非对映选择性。由于基于 Br 的自修复作用,NC 光催化剂具有很高的可回收性,从而实现了一种特别经济和简洁的异质反应,其中溶剂 DBM 也在过氧化物光催化中起到了辅助催化剂的作用。卤化物过氧化物因其高效的太阳能转换而备受瞩目,已被证明是 Br 自由基介导的 [3+2] 环加成反应的特殊光催化剂。我们设想,这种由包晶石诱导的 Br 自由基策略可作为一种强大的化学工具,用于开发有价值的卤素自由基相关反应。
  • PLETNEV, S. I.;IGUMNOV, S. M.;ZAXAROVA, E. V.;MAKAROV, K. N., IZV. AN CCCP. CEP. XIM.,(1990) N, S. 636-640
    作者:PLETNEV, S. I.、IGUMNOV, S. M.、ZAXAROVA, E. V.、MAKAROV, K. N.
    DOI:——
    日期:——
  • AVETISYAN, EH. A.;CHERSTKOV, V. F.;SNEGIREV, V. F.;STERLIN, S. R.;GERMAN,+, IZV. AN CCCP. CEP. XIM.,(1990) N, S. 695-698
    作者:AVETISYAN, EH. A.、CHERSTKOV, V. F.、SNEGIREV, V. F.、STERLIN, S. R.、GERMAN,+
    DOI:——
    日期:——
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表征谱图

  • 氢谱
    1HNMR
  • 质谱
    MS
  • 碳谱
    13CNMR
  • 红外
    IR
  • 拉曼
    Raman
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ir
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  • 峰位数据
  • 峰位匹配
  • 表征信息
Shift(ppm)
Intensity
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Assign
Shift(ppm)
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测试频率
样品用量
溶剂
溶剂用量
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