Mo3Co-Dpt

In order to obtain crystals of Mo3Co-Dpts the dark brown solution Mo3Co-D is absorbed on a short cation exchanger, Dowex 50W-X2 (diameter 2.2 cm, length 5 cm), and eluted with Hpts (4 M) The eluate from the column is kept in a refrigerator (ca. — 5°C). After one week black-brown crystals deposit, which are collected by Altration, washed with ethyl acetate, and air-dried yield 0.13 g (15% based on Mo3Co-D in HCl (1 M). 

MOLYBDENUM-NICKEL CLUSTER AQUA ION, [Mo3NiS4(H20)io] + (Mo3Ni) IN SOLUTION AND [Mo3NiS4(H20)io](CH3C6H4S03)4 7H2O (Mo3Nipts) 

Decaaquotrimolybdenum-nickel-tetrasulfide, [Mo3NiS4(H20)io] (M03N1), in solution 

The cluster Mo3Ni in dilute HCl or Hpts is fairly stable toward air oxidtion and can be handled in the air the solution of Hpts (2 M) is air-oxidized by only 15% per month. However, if the solution is stored for a prolonged period, storage under a dinitrogen atmosphere is recommended. The crystals MoNipts dissolve in some organic solvents (e.g., acetonitrile, acetone, and A, A -dimethyl-folmamide). 

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H20)9Mo3S4CoCoS4M 3(H20)9] + (Mo3Co-D), in solution AND [(H20)9M03S4CoCoS4M03(H20)9(CH3C6H4S03)8 I8H2O (Mo3Co-Dpts)... 

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