二氯二氧化钼
化合物
二氯二氧化钼是一种无机化合物,化学式为MoO2Cl2。它是浅黄色可溶于水的潮解性固体,可用于制备其它钼化合物。它的加合物MoO2Cl2(ether)2可溶于有机溶剂。二氯二氧化钼可用作一些氧化反应的催化剂。[3]
二氯二氧化钼 | |
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英文名 | Molybdenum dichloride dioxide Molybdyl chloride |
识别 | |
CAS号 | 13637-68-8 |
PubChem | 139520 |
SMILES |
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性质 | |
化学式 | Cl2MoO2 |
摩尔质量 | 198.84 g·mol−1 |
外观 | 浅黄色固体 |
熔点 | 298 °C(571 K)(文献a[1]) 159 °C(432 K)(升华,文献b[2]) |
若非注明,所有数据均出自标准状态(25 ℃,100 kPa)下。 |
制备
- MoO3 + 2 HCl → MoO2Cl2 + H2O
- MoOCl4 + O(Si(CH3)3)2 → MoO2Cl2 + 2 ClSi(CH3)3
二氧化钼于500~700 °C和氯气反应[6],或者五氯化钼在空气中加热也能得到产物:
- MoO2 + Cl2 → MoO2Cl2
- 2 MoCl5 + 2 O2 → 2 MoO2Cl2 + 3 Cl2
化学性质
MoO2Cl2可以形成一系列的加合物,例如MoO2Cl2(THF)2。它和大分子苯胺反应,生成二亚胺配合物MoCl2(NAr)2(L),这种配合物是Schrock型卡宾Mo(OR)2(NAr)(CH-t-Bu)的前驱体。[6]
- MoO2Cl2 + 2 HF → MoO2F2 + 2 HCl
- MoO2Cl2 + 3 SO3 → MoO(SO4)2 + SO2Cl2
参考文献
- ^ Eliseev, S. S.; Malysheva, L. E.; Vozhdaeva, E. E. Methods for synthesis and thermal properties of molybdenum dioxychloride (MoO2Cl)(俄文). Zhurnal Neorganicheskoi Khimii, 1985. 30 (2): 296-300. ISSN: 0044-457X.
- ^ Saeki, Yuzo; Matsuzaki, Ryoko. Chemistry of molybdenum chlorides. V. Thermochemical properties of molybdenum dioxydichloride(日語). Denki Kagaku, 1966. 34 (7): 504-505. ISSN: 0366-9440.
- ^ Marta Castiñeira Reis, Marta Marín-Luna, Carlos Silva López, Olalla Nieto Faza. [MoO 2 ] 2+ -Mediated Oxygen Atom Transfer via an Unusual Lewis Acid Mechanism. Inorganic Chemistry. 2017-09-05, 56 (17): 10570–10575 [2019-03-28]. ISSN 0020-1669. doi:10.1021/acs.inorgchem.7b01529 (英语).
- ^ Francisco J. Arnaiz. Dichlorodioxobis(Dimethylsulphoxide) Molybdenum(VI). Inorganic Syntheses. 1997, 31: 246-7. doi:10.1002/9780470132623.ch39.
- ^ Gibson, V. C.; Kee, T. P.; Shaw, A. New, improved synthesis of the group 6 oxyhalides, W(O)Cl4, W(O)2Cl2 and Mo(O)2Cl2. Polyhedron. 1988, 7 (7): 579–80. doi:10.1016/S0277-5387(00)86336-6.
- ^ 6.0 6.1 Schrock, R. R.; Murdzek, J. S.; Bazan, G. C.; Robbins, J.; DiMare, M.; O'Regan, M. Synthesis of molybdenum imido alkylidene complexes and some Reactions Involving Acyclic Olefins. Journal of the American Chemical Society. 1990, 112: 3875–3886. doi:10.1021/ja00166a023.
- ^ Del Carmen Ruiz, Maria; Rivarola, Juan B.; Quiroga, Oscar D. Chlorination of molybdenum trioxide with carbon tetrachloride. Latin American Applied Research, 1990. 20 (2): 107-111. ISSN: 0327-0793.
拓展阅读
- Korshunov, B. G.; Nirsha, B. M. Reaction of molybdenum dioxydichloride with chloride compounds of Groups IV and V elements(俄文). Zhurnal Neorganicheskoi Khimii, 1969. 14 (7): 1971-1972. ISSN: 0044-457X.