Tetraethylammonium Tris(pyridine-2-thiolato-S,N)cobalt(II), (Et₄N)[Co(2-S-C₅H₄N)₃]

Na[Co(CO)₄] was reacted with pyridine-2-thiol (PyS) in tetrahydrofuran to give the title complex, (C₈H₂₀N)[Co(C₅H₄NS)₃], in which the three S atoms and the three N atoms of the PyS ligands coordinate to the central Co^II atom, forming three four-membered chelate rings with S-Co-N angles of 66°. The geometry around the Co^II atom is distorted octahedral. The average Co-S and Co-N bond distances are 2.568 and 2.108 Å, respectively.

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