Abstract
Reaction of bzo 2-18S6 (2,3,11,12-dibenzo-1,4,7,10,13,16-hexathiacyclooctadeca-2,11-diene) with Fe, Co, Ni and Cu salts yields the corresponding metal complexes [M(bzo 2-18S6)] n+ . Their trifluoromethanesulfonate salts were characterized by spectroscopic and electrochemical methods and the structure of [Ni(bzo 2-18S6)][B(C 6H 5) 4] 2 was elucidated by X-ray structure determination. It crystallizes in space group P2 1/ n with a = 1497.8(4), b = 1096.5(4), c = 1772.5(5) pm, β = 104.26(2)°, Z = 2 and D calc = 1.36 g/cm 3; R = 0.061, R w = 0.041. The nickel centre is surrounded by the six sulfur atoms of the ligand in a slightly distorted octahedron. The NiS distances indicate a ligand compression effect of bzo 2-18S6. The different electrochemical behaviour of the [M(bzo 2-18S6)] n+ complexes is discussed.
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