Preparation and Crystal Structures of the Silver(I) Carboxylates , *H2O and

DOI: 10.1039/DT9950003565

Source and publish data:

Journal of the Chemical Society, Dalton Transactions p. 3565 - 3570 (1995)

Update date:2022-09-26

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Authors:

Smith, Graham

Reddy, Adi N.

Byriel, Karl A.

Kennard, Colin H. L.

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Article abstract of DOI:10.1039/DT9950003565

Two silver ammine complexes with the polyprotic aromatic acids benzene-1,2-dicarboxylic acid (phthalic acid) and benzene-1,3,5-tricarboxylic acid (trimesic acid) have been prepared and their stuctures determined using single-crystal X-ray diffraction and infrared spectroscopy.Complex 1, , is a hydrogen-bonded polymer based on a simple diamminephthalatodisilver(I) species, with an ammonia molecule and a single phthalate carboxylate oxygen bonded to separate silver atoms, giving essentially linear co-ordination .All three ammine hydrogens are involved in intermolecular hydrogen-bonding interactions, giving a chain polymer.Complex 2, *H2O, is a two-dimensional sheet polymer based on a pseudo-centrosymmetric S-type trimer unit, linked by the carboxylate groups of two independent trimesate residues .The two ammonia molecules are also bonded linearly to two independent silvers .The terminal silvers provide bonding links to adjacent trimesate carboxyl oxygens between the layers while the third trimesate carboxyl group forms conventional centrosymmetric bis<(carboxylato-O,O')silver(I)> dimers , with water molecules in the axial sites for the dimer.A third compound 3, ammonium silver(I) pyrazine-2,3-dicarboxylate , has also been prepared using a procedure similar to that for 1 and 2.However, unlike them, it has no bonded ammines but has a distorted trigonal-planar co-ordination involving two carboxylate oxygens and one heteronitrogen , from three separate ligand molecules, giving a polymer structure.

Full text of DOI:10.1039/DT9950003565

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