A dimeric copper coumarin complex: synthesis and crystal structure of [{Cu(4-methyl-7-(salicylideneamino)coumarin)2}2]

• Authors: Elham Aazam , Amel EL Husseiny , Peter Hitchcock , Jemila Alshehri
• Languages of publication: EN

Abstracts

EN

A binuclear copper complex [{Cu(L)2}2], C68H48Cu2N4O12C (where L is 4-methyl-7-(salicylideneamino)coumarin), has been synthesized and characterized using elemental analysis, molar conductance measurements, and infrared, ultraviolet and ESR spectrosopy. The molecular structure of title compound, determined by single-crystal X-ray diffraction studies, reveals that the two symmetric Cu(L)2 units are associated into a dimer by rather long Cu...O bonds. The Cu(II) ions are bridged via the phenolic oxygen of one of the monomers and have distorted trigonal bipyramidal conformation geometry. Within each monomer the two methylsubstituted coumarin skeletons are trans to one another, but adopt a parallel arrangement with respect to the other monomer. Only half of the complex molecule can be found in the asymmetric unit, Z′ = 0.5, the other half is generated by the symmetry centre. [...]

Keywords

EN

Coumarin; Schiff base; Copper(II) complex; Crystal structure; ESR

• Publisher: De Gruyter Open
• Journal: Open Chemistry
• Year: 2008
• Volume: 6
• Issue: 2
• Pages: 319-323

Dates

published

1 - 6 - 2008

online

17 - 4 - 2008

Contributors

author

Elham Aazam

• Department of Chemistry, Girls section, University of King Abdulaziz, PO Box 6171, Jeddah, 21442, Saudi Arabia

author

Amel EL Husseiny

• Department of Chemistry, Girls section, University of King Abdulaziz, PO Box 6171, Jeddah, 21442, Saudi Arabia

author

Peter Hitchcock

• The Chemistry Laboratory, School of Chemistry, Physics and Environmental Science, University of Sussex, Brighton BN1 9QJ, England, UK

author

Jemila Alshehri

• The Chemistry Laboratory, School of Chemistry, Physics and Environmental Science, University of Sussex, Brighton BN1 9QJ, England, UK

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Identifiers

DOI

10.2478/s11532-008-0018-3