Systematische Studie zu den Koordinationseigenschaften des Guanidin-Liganden Bis(tetramethylguanidino)propan mit den Metallen Mangan, Cobalt, Nickel, Zink, Cadmium, Quecksilber und Silber. A Systematic Study on the Coordination Properties of the Guanidine

The mixed-valent copper thiol-ate complex hexa-kis-{μ3-2-[(1,3-dimethyl-imidazol-idene)amino]-benzene-thiol-ato}dicopper(II)tetra-copper(I) bis-(hexa-fluoridophosphate) acetonitrile disolvate dichloro-methane disolvate

The mol-ecular structure of the title compound, [Cu4(I)Cu2(II)(C11H14N3S)6](PF6)2·2CH3CN·2CH2Cl2, shows a mixed-valent copper(I/II) thiol-ate complex with a distorted tetra-hedral coordination of the Cu(I) and Cu(II) 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-thiol-ate 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 inter-actions occur between the PF6(-) anion and the complex mol-ecule and between the PF6(-) anion and the acetonitrile solvent mol-ecule.

Bis(2-{[bis-(dimethyl-amino)-methyl-idene]amino-κN}benzene-sulfonato-κN)copper(II)

The mol-ecular structure of the title compound, [Cu(C11H16N3O3S)2], shows the Cu(II) atom with a distorted square-planar coordination geometry from the N2O2 donor set of the two chelating 2-{[bis-(dimethyl-amino)-methyl-idene]amino}-benzene-sulfonate ligands. The Cu(II) atom lies 0.065 (1) Å above the N2O2 plane and the Cu-O [2 × 1.945 (2) Å] and Cu-N bond lengths [1.968 (3) and 1.962 (3) Å] lie in expected ranges. The two aromatic ring planes make a dihedral angle of 85.48 (1)°.

N-Trityl-2-(tritylsulfan-yl)aniline

The title compound, C₄₄H₃₅NS, is a derivative of amino­thio­phenol and possesses a protected S-triphenyl­methyl thio­ether and an N-triphenyl­methyl­amine functional group. The trityl groups show an anti orientation, with C—C—N—C and C—C—S—C torsion angles of −151.0 (3) and −105.3 (2)°, respectively. There is an intra­molecular N—H⋯S hydrogen bond.

2-[2-(Benzyl-sulfan-yl)phen-yl]-1,1,3,3-tetra-methyl-guanidine

The mol-ecular structure of the title compound, C(18)H(23)N(3)S, shows it to be a derivative of an amino-thio-phenol possessing a tetra-methyl-guanidine group with a localized C=N double bond of 1.304 (2) Å and a protected thiol functional group as an S-benzyl thio-ether. The two aromatic ring planes make a dihedral angle of 67.69 (6)°.

N-[Bis(dimethyl-amino)-methyl-idene]-2-[(triphenyl-meth-yl)sulfan-yl]ethanaminium hexa-fluoro-phosphate

The mol-ecular structure of the title compound, C(26)H(32)N(3)S(+)·PF(6) (-), shows a protonated guanidyl group bridged by an ethyl-ene linker with a tritylsulfanyl unit. The guanidinium (gua) unit displays charge delocalization over the three N-C(gua) bonds. The N-C-C-S group shows a folded nonplanar conformation with a torsion angle of 158.4 (1)°. In the crystal, the cation and anion are linked by an N-H⋯F inter-action.