arsenic pentasulfide | 1303-34-0

• 物质功能分类: 无机化工 - 无机盐 - 金属硫化物及硫酸盐
• 分子结构分类: 无机化合物 - 混合金属/非金属化合物 - 类金属有机物
• 英文名称: arsenic pentasulfide
• 英文别名: [bis(sulfanylidene)-λ5-arsanyl]sulfanyl-bis(sulfanylidene)-λ5-arsane
• CAS: 1303-34-0
• 化学式: As₂S₅
• 分子量: 310.173
• InChiKey: AYRZLUSHOXJGKY-UHFFFAOYSA-N

物化性质

• 熔点：
  >300 °C (lit.)
• 溶解度：
  不溶于水；溶于碱性溶液

计算性质

• 辛醇/水分配系数(LogP)：
  2.48
• 重原子数：
  7
• 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：
  154
• 氢给体数：
  0
• 氢受体数：
  5

ADMET

毒理性

• 副作用

神经毒素 - 感觉运动 职业性肝毒素 - 继发性肝毒素：职业环境中潜在的有毒效应基于人类摄入或动物实验的中毒案例。 再生障碍性贫血 - 血液中增多的变性血红蛋白；该化合物被归类为原发性有毒效应。 生殖毒素 - 对生殖系统有毒的化学物质，包括对后代缺陷以及对男性或女性生殖功能的损害。生殖毒性包括发育效应。参见生殖毒性风险评估指南。 国际癌症研究机构(IARC)致癌物 - 1类：国际癌症研究机构将化学物质分类为确定的人类致癌物。 美国国家毒理学项目(NTP)致癌物 - 已知是人类致癌物。 美国职业安全与健康研究院(ACGIH)致癌物 - 确认的人类致癌物。

Neurotoxin - Sensorimotor Occupational hepatotoxin - Secondary hepatotoxins: the potential for toxic effect in the occupational setting is based on cases of poisoning by human ingestion or animal experimentation. Aplastic anemia - The presence of increased methemoglobin in the blood; the compound is classified as primary toxic effect. Reproductive Toxin - A chemical that is toxic to the reproductive system, including defects in the progeny and injury to male or female reproductive function. Reproductive toxicity includes developmental effects. See Guidelines for Reproductive Toxicity Risk Assessment. IARC Carcinogen - Class 1: International Agency for Research on Cancer classifies chemicals as established human carcinogens. NTP Carcinogen - Known to be a human carcinogen. ACGIH Carcinogen - Confirmed Human.

来源:Haz-Map, Information on Hazardous Chemicals and Occupational Diseases

安全信息

• 危险等级：
  6.1(b)
• 危险品标志：
  N,T
• 安全说明：
  S20/21,S28,S45,S60,S61
• 危险类别码：
  R50/53,R23/25
• WGK Germany：
  3
• 危险品运输编号：
  UN 1557 6.1/PG 2
• 包装等级：
  III
• 危险类别：
  6.1(b)

制备方法与用途

生产方法： 将浓盐酸加入砷酸水溶液中，用量为砷酸溶液的两倍。在冰浴冷却条件下，通入硫化氢气体1小时。若温度升高，则易转变为三硫化二砷，务必注意此过程。沉淀物需用饱和H2S水溶液洗涤，并随后使用乙醇进行洗涤，在低温下干燥。

反应信息

• 作为反应物：
  描述：

  potassium sulfide 、 arsenic pentasulfide 以 水 为溶剂， 生成 potassium tetrathioarsenate
  参考文献：
  名称：

  Atomistic Description of Thiostannate-Capped CdSe Nanocrystals: Retention of Four-Coordinate SnS4 Motif and Preservation of Cd-Rich Stoichiometry

  摘要：

  Colloidal semiconductor nanocrystals (NCs) are widely studied as building blocks for novel solid-state materials. Inorganic surface functionalization, used to displace native organic capping ligands from NC surfaces, has been a major enabler of electronic solid-state devices based on colloidal NCs. At the same time, very little is known about the atomistic details of the organic-to-inorganic ligand exchange and binding motifs at the NC surface, severely limiting further progress in designing all-inorganic NCs and NC solids. Taking thiostannates (K4SnS4, K4Sn2S6, K6Sn2S7) as typical examples of chalcogenidometallate ligands and oleate-capped CdSe NCs as a model NC system, in this study we address these questions through the combined application of solution H-1 NMR spectroscopy, solution and solid-state 119Sn NMR spectroscopy, far-infrared and X-ray absorption spectroscopies, elemental analysis, and by DFT modeling. We show that through the X-type oleate-to-thiostannate ligand exchange, CdSe NCs retain their Cd-rich stoichiometry, with a stoichiometric CdSe core and surface Cd adatoms serving as binding sites for terminal S atoms of the thiostannates ligands, leading to all-inorganic (CdSe)(core)[Cdm(Sn2S7)(y)K((6y-2m))]shell (taking Sn2S76 ligand as an example). Thiostannates SnS44 and Sn2S76- retain (distorted) tetrahedral SnS4 geometry upon binding to NC surface. At the same time, experiments and simulations point to lower stability of Sn2S64 (and SnS32) in most solvents and its lower adaptability to the NC surface caused by rigid Sn2S2 rings.

  DOI：

  10.1021/ja510862c
• 作为产物：
  描述：

  磷酸 生成 arsenic pentasulfide
  参考文献：
  名称：

  SEGRIST, LLOYD E.

  摘要：

  DOI：

文献信息

• M₂As₂Q₅ (M = Ba, Pb; Q = S, Se): a source of infrared nonlinear optical materials with excellent overall performance activated by multiple discrete arsenate anions
  作者：Man-Man Chen、Zuju Ma、Bing-Xuan Li、Wen-Bo Wei、Xin-Tao Wu、Hua Lin、Qi-Long Zhu

  DOI：10.1039/d0tc05952h

  日期：——

  M₂As₂Q₅ (M = Ba, Pb; Q = S, Se) have been screened out by combined experiments and theoretical calculations as a new source of IR NLO materials. Interestingly, they exhibit excellent overall performance activated by multiple discrete arsenate anions.

  M2As2Q5（M = Ba、Pb；Q = S、Se）通过实验和理论计算相结合的方法被筛选出来，成为一种新的红外 NLO 材料。有趣的是，它们在多个离散砷酸根阴离子的激活下表现出卓越的综合性能。
• ——
  作者：HAKAHO TADASI

  DOI：——

  日期：——
• SAGARADZE, N. SH., RESP. KONF. MOL. XIMIKOV, POSVYASHCH. 70-LETIYU OKT. PEB. TEZ. DOKL., TBI+
  作者：SAGARADZE, N. SH.

  DOI：——

  日期：——