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Search query: amine cations
688 articles match your search "amine cations"Results 1 to 10, sorted by relevance:
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The structures of four alkali metal salt forms of sulfadiazine and two organic salt forms of sulfadiazine are described and the bonding modes of the sulfadiazine ligand are discussed.
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The structures of five gold complexes involving piperidine or pyrrolidine, either as neutral ligands or protonated counter-cations, are presented.
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New structures of the N-terminal 43 kDa fragment of the E. coli DNA gyrase B subunit reveal two discrete monovalent cation-binding sites that could have functional roles.
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The asymmetric unit of the title salt, C12H32N42+·2C18HBF15O−·2.5C6H6, which crystallizes in the triclinic space group P
, comprises two half [C12H32N4]2+ dications, two [C18HBF15O]− anions, and 2.5 molecules of benzene as solvate.
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The structures of two semiconducting thiostannates (R2Sn3S7, R is an organic cation) were investigated in detail using single-crystal X-ray diffraction, solid-state NMR spectroscopy and electron microscopy. The atomic level structures of the compounds are discussed in relation to their different light absorption properties.
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The complex [tris(pyridin-2-ylmethyl)amine]copper(II) bromide adopts a trigonal–bipyramidal coordination geometry about the CuII ion. The outer sphere bromine counter-ions are severely disordered.
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In the title compound, the coordination of the two tridentate ligands bis(pyridin-2-yl)methanamine to FeII results in a strongly distorted octahedral [FeN6] coordination polyhedron, with acute N—Fe—N bite angles in the five-membered metalacycles.
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The asymmetric unit of the title compound consists of two independent ion pairs of 4-(dimethylamino)pyridin-1-ium quinolin-8-ol-5-sulfonate (HDMAP+·HqSA−) and neutral N,N-dimethylpyridin-4-amine (DMAP), forming a 1:1:1 cation:anion:neutral molecule co-crystal. The compound has a layered structure, including cation layers of HDMAP+ with DMAP and anion layers of HqSA− in the crystal. The cation and anion layers are linked by intermolecular C—H
O hydrogen bonds and C—H
π interactions.
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The new copper(II) complex [CuLCl2]2, where L is a product of Schiff base condensation between methylamine and 2-pyridinecarbaldehyde, is built of discrete centrosymmetric dimers.
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The crystal structure of bis{bis(azido-κN)bis[bis(pyridin-2-yl-κN)amine]cobalt(III)} sulfate dihydrate is comprised of discrete [Co(dpa)2(N3)2]+ cations, SO42− anions and solvent water molecules in a 2:1:2 ratio; extensive hydrogen-bonding interactions link the species into a three-dimensional supramolecular framework.