Publications by authors named "Manfred Steimann"

In the title compound, C10H16N2O9S3, the pyrimidine ring of the 1,3-dimethyl barbituric acid moiety has an envelope conformation with the C atom carrying the methyl-sulfonyl and bis-(methyl-sulfon-yl)methyl substituents as the flap. The dihedral angle between mean plane of the pyrimidine ring and the S/C/S plane is 72.4 (3)°.

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The title compound, C18H28N2S2·CHCl3, crystallizes as a zwitterion. The C-S bonds are almost equivalent, with lengths of 1.666 (3) and 1.

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In the title compound, C3H8O4S2, the two central S-C(H2) bond lengths are almost identical [1.781 (2) and 1.789 (2) Å].

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The title compound, C15H18N4O7, is a product of the substitution reaction of 5,5-di-bromo-1,3-di-methyl-barbituric acid with sodium sulfide in aqueous acetone. In the crystal, mol-ecules display neither inter-molecular nor intra-molecular hydrogen bonding and the two barbiturate rings adopt the keto form.

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The title structure, (C(11)H(20)BrN(2))[Ag(CN)(2))], is built up from an approximately C(2v)-symmetric imidazolium cation and a nearly linear dicyanidoargentate anion [N-Ag-N = 176.6 (9)° and Ag-C-N = 178.8 (9) and 177.

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In the title salt, C(11)H(21)N(2) (+)·C(6)H(5)O(3)S(-), which has two cation-anion pairs in the asymmetric unit, the two imidazolium cations are linked to two separate acceptor O atoms of one of the benzene-sulfonate anions through aromatic C-H⋯O hydrogen bonds, while the second anion is unassociated.

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