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3 citations found for Lopes, A.
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organic compounds
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In the title compound, C18H24N2, the molecular unit adopts a trans conformation around the central C—C bond [N—C—C—N torsion angle of 179.2 (3)°], with the two aromatic rings almost coplanar [dihedral angle of only 0.70 (4)°]. The crystal packing is driven by co-operative contacts involving weak C—H
N and C—Hπ interactions, and also the need to fill effectively the available space.
N and C—Hπ interactions, and also the need to fill effectively the available space.metal-organic compoundsOpen access
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The title salt, (C5H6N)4[Mo2Cl2O5(SO4)2], comprises four pyridinium cations for each [(MoClO2)2(μ-O)(μ-SO4)2]4− anionic unit. The asymmetric unit consists of three aggregates of the empirical formula. The tetraanionic bimetallic molybdenum(VI) cluster is unprecedented and contains two sulfate and one oxide bridges. This structure constitutes the first example of a non-polymeric compound with terminal oxide, sulfate and halide ligands bonded to the same metal. The hydrogen bonds connecting the pyridinium cations to the molybdenum clusters are diverse, varying from strong and directional interactions to bifurcated bonds with a subsequent loss of directionality.
crystallization papers
The synthetic gene of the amino-terminal domain of the antistasin-type inhibitor ghilanten (ghilanten-D1) from H. ghilianii was constructed, expressed in the methylotrophic yeast P. pastoris and purified by heparin–Sepharose chromatography. Recombinant ghilanten-D1 has been crystallized in complex with porcine β-trypsin in three different-looking but isomorphous crystal forms, each belonging to the orthorhombic space group P212121.
