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乙酸钌(III)

乙酸钌(III)
识别
CAS号 72196-32-8  checkY
性质
外观 绿色至黑色固体(碱式盐)
溶解性 可溶于醇
若非注明,所有数据均出自标准状态(25 ℃,100 kPa)下。

乙酸钌(III)是一种配位化合物,化学式为Ru2(OAc)6-n(OH)n,其中OAc为乙酸根,目前仅已知Ru(III)的碱式盐。

制备与结构

[编辑]

乙酸钌(III)的“一水合物”于1987年通过[Ru2(μ-OAc)4Cl]和AgOAc在乙酸/甲醇溶液中反应、过滤、滤液在空气中浓缩结晶制得。[1]

红色的一水合物[Ru2(μ-OAc)4(OAc)2]·H2O为Ru26+(d10)配合物,属三斜晶系P1空间群,分子中存在2.265 Å的Ru-Ru键,和[Ru2(μ-OAc)4(H2O)2]几乎一致,但比[Ru2(μ-OAc)4(H2O)2]BF4的键略长。分子中四个乙酸根配体为桥联配体,两个为单齿配体。[1]一年后,有文献指出该化合物仅具有Ru25+而非Ru26+,进一步的表征发现该物质的结构为[Ru2(μ-OAc)4(OAc)2H]·0.7H2O。[2]

氢氧化铬和冰乙酸混合后煮沸,得到黑绿色的液体,过滤,滤出的黑色晶体粉末为碱式盐Ru2(OAc)4(OH)2(OH2)2。若氢氧化铬和50%乙酸溶液反应,蒸干后得到的黑色潮解性晶体为Ru2(OAc)5OH。[3]

三氯化钌三水合物和乙酸钠乙醇/乙酸中反应,可以得到[Ru33-O)(μ-OAc)6(H2O)3][OAc]:[4]

3 RuCl3(H2O)3 + 9 NaOAc → [Ru3O(OAc)6(H2O)3]OAc + 2 HOAc + 9 NaCl + 5 H2O

参考文献

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  1. ^ 1.0 1.1 Michael G. B. Drew, Paula Higgins, G. Malachy McCann. The first hexacarboxylato diruthenium( III ) complex. Synthesis, X-ray crystal structure, and properties of tetra-µ-acetato-diacetatodiruthenium( III ) monohydrate. J. Chem. Soc., Chem. Commun. 1987, (18): 1385–1387 [2021-01-15]. ISSN 0022-4936. doi:10.1039/C39870001385 (英语). 
  2. ^ F. Albert Cotton, Marek Matusz, Bianxiao Zhong. Oxidation states available to the dirutheniumn+ core in tetracarboxylato-bridged species. Inorganic Chemistry. 1988-11, 27 (24): 4368–4372 [2021-01-15]. ISSN 0020-1669. doi:10.1021/ic00297a008 (英语). 
  3. ^ Alfred William Mond. CLX.—The acetates of ruthenium. J. Chem. Soc. 1930, 0 (0): 1247–1249 [2021-01-15]. ISSN 0368-1769. doi:10.1039/JR9300001247 (英语). 
  4. ^ Thomas B. Rauchfuss (编). Ruthenium Complexes. Hoboken, NJ, USA: John Wiley & Sons, Inc. 2010-09-07: 148–163 [2021-01-15]. ISBN 9780470651568. doi:10.1002/9780470651568.ch8. 
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乙酸钌(III)
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