Crystal and molecular structure of dichlorobis(2,2′-thiodiethanol)cobalt(II)

Add time:08/22/2019    Source:sciencedirect.com

The crystal and molecular structure of dichlorobis(2,2′-thiodiethanol)cobalt(II) was determined from three-dimensional X-ray data collected by counter methods. The compound crystallizes as prismatic pink plates and belongs to space group P21/c. The unit cell dimensions are a = 6.786(2), b = 11.270(3), c = 10.331(3) Å, β = 109.24(2)°, and Z = 2. The structure was solved by direct methods from 1496 reflections and was refined by least-squares to an R value of 0.028. The complex is centrosymmetric, and each thiodiethanol molecule is bonded to cobalt through a sulphur (CoS 2.508 Å) and an oxygen atom (CoO 2.066 Å), resulting in a five-membered chelating ring. The six coordination around cobalt is completed by the two chlorine atoms occupying the apical positions trans to each other (CoCl 2.423 Å). There is extensive hydrogen bonding involving the hydroxyl groups and chlorine atoms.

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