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Triple helicates and planar dimers arising from silver(I) coordination to directly linked bis-pyridylimine ligands

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UNSPECIFIED (2002) Triple helicates and planar dimers arising from silver(I) coordination to directly linked bis-pyridylimine ligands. JOURNAL OF THE CHEMICAL SOCIETY-DALTON TRANSACTIONS (8). pp. 1635-1641. doi:10.1039/b110137b

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Official URL: http://dx.doi.org/10.1039/b110137b

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Abstract

Silver(I) coordination is investigated for three ligands of the pyridine-azine class, in which two pyridylimine binding units are linked directly through the imine nitrogen atoms. H-1 NMR, X-ray analysis and ESI mass spectrometry indicate the presence of a range of metallo-supramolecular architectures in solution for all three ligands. X-Ray analysis confirms the solid state structures for a dinuclear triple helicate containing five-coordinate silver centres and a dinuclear dimer in which the silver ions are three-coordinate with long range stabilising interactions to trifluoromethanesulfonate counter-ions. A tetranuclear grid-like array is also implied as a component of the solution library. The five-coordinate silver(I) ions in the triple helicate result in a hetero-ligand system with two ligands oriented in a head-to-tail fashion. This is distinct from the triple helicates formed with octahedral metals such as an iron(II) triple helicate also crystallographically characterised herein.

Item Type: Journal Article
Subjects: Q Science > QD Chemistry
Journal or Publication Title: JOURNAL OF THE CHEMICAL SOCIETY-DALTON TRANSACTIONS
Publisher: ROYAL SOC CHEMISTRY
ISSN: 1472-7773
Official Date: 2002
Dates:
DateEvent
2002UNSPECIFIED
Number: 8
Number of Pages: 7
Page Range: pp. 1635-1641
DOI: 10.1039/b110137b
Publication Status: Published

Data sourced from Thomson Reuters' Web of Knowledge

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