Acta Cryst. (2008). C64, m87-m90 [ doi:10.1107/S0108270107065584 ]
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2N,O)dinitrosylmolybdenum(0) and bis(2-aminoethanethiolato-2N,S)dinitrosylmolybdenum(0) acetonitrile monosolvateAbstract: The title compounds, [Mo(C2H4NO2)2(NO)2], (I), and [Mo(C2H6NS)2(NO)2]·CH3CN, (II), contain distorted octahedral complexes in which the monoanionic N,S- and N,O-bidentate ligands coordinate the molybdenum centres in different modes. The anionic O atoms of the glycinate ligands in (I) are coordinated trans to the nitrosyl ligands and the amine N atoms are located trans to each other, whereas in (II) the anionic S atoms are coordinated trans to each other and the amine N atoms are located trans to the nitrosyl ligands. Each compound has a single complete complex in the asymmetric unit on a general position. Six N-H
O contacts with NO distances of less than 3.2 Å are observed in (I) between the amine groups and the nitrosyl and carboxylate O atoms. In the 1:1 solvate (II), the acetonitrile molecule forms short N-HN contacts (NN < 3.2 Å) between the solvent N atoms and one of the amine H atoms. In addition, three weak intermolecular N-HS interactions (NS > 3.3 Å) contribute to the stabilization of the structure of (II).
Formula: [Mo(C2H4NO2)2(NO)2] and [Mo(C2H6NS)2(NO)2]·C2H3N
 |   Structure factor file (CIF format) (132.1 kbytes) |
| Structure factor file (CIF format) (191.0 kbytes) |
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