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The mol­ecular structure of the title compound, [Cu4ICu2II(C11H14N3S)6](PF6)2·2CH3CN·2CH2Cl2, shows a mixed-valent copper(I/II) thiol­ate complex with a distorted tetra­hedral coordination of the CuI and CuII cations by one guanidine N atom and three S atoms each. Characteristic features of the Cu6S6 skeleton are a total of six chemically identical μ3-thiol­ate bridges and almost planar Cu2S2 units with a maximum deviation of 0.110 (1) Å from the best plane. Each Cu2S2 unit then shares common Cu–S edges with a neighbouring unit; the enclosed dihedral angle is 60.14 (2)°. The geometric centre of the Cu6S6 cation lies on a crystallographic inversion centre. Cu—S bond lengths range from 2.294 (1) to 2.457 (1) Å, Cu—N bond lengths from 2.005 (3) to 2.018 (3) Å and the non-bonding Cu...Cu distances from 2.5743 (7) to 2.5892 (6) Å. C—H...F hydrogen-bond inter­actions occur between the PF6 anion and the complex mol­ecule and between the PF6 anion and the acetonitrile solvent mol­ecule.

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The mol­ecular structure of the title compound, C18H21N3S, shows a twisted conformation with a dihedral angle of 67.45 (4)° between the aromatic ring planes and an N-C-C-S torsion angle of -5.01 (13)°. The imidazolidine ring and the aniline moiety make a dihedral angle of 56.03 (4)° and the asscociated C-N-C angle is 125.71 (10)°. The guanidine-like C=N double bond is clearly localized, with a bond length of 1.2879 (14) Å. The C-S-C angle is 102.12 (5)° and the S-C(aromatic) and S-C bond lengths are 1.7643 (11) and 1.8159 (12) Å.
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