Copper(II) trinuclear complex with trimesic acid salicylidene hydrazone: Synthesis, structure, and magnetic properties

Copper(II) trinuclear complex with trimesic acid salicylidene hydrazone: Synthesis, structure, and magnetic properties

A trinuclear copper(II) complex of trimesic acid salicylidene hydrazone (H 6 L) having the composition [Cu 3 L · 4Py] · CH 3 OH was synthesized and characterized. By X-ray crystallography, the crystals are triclinic: a = 11.7940(4) Å, b = 13.7241(5) Å, c = 15.8993(6) Å, α = 107.4120(10)°, β = 94.290...

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Bibliographic Details
Published in:Russian journal of inorganic chemistry Vol. 56; no. 4; pp. 600 - 605
Main Authors: Shul’gin, V. F., Konnik, O. V., Gurtovoi, R. I., Bogomyakov, A. S., Zub, V. Ya, Minin, V. V.
Format: Journal Article
Language:English
Published: Dordrecht SP MAIK Nauka/Interperiodica 01-04-2011
Subjects:
Bridges (structures)
Chemistry
Chemistry and Materials Science
Clusters
Copper
Hydrazones
Inorganic Chemistry
MAGNETIC PROPERTIES
Physical Methods Of Investigation
PROPERTIES
Reflection
Trimesic acid
Unit cell
Pyridine Molecule
Salicylic Aldehyde
Benzene Dicarboxylic Acid
Static Magnetic Susceptibility
Trinuclear Complex
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Summary:A trinuclear copper(II) complex of trimesic acid salicylidene hydrazone (H 6 L) having the composition [Cu 3 L · 4Py] · CH 3 OH was synthesized and characterized. By X-ray crystallography, the crystals are triclinic: a = 11.7940(4) Å, b = 13.7241(5) Å, c = 15.8993(6) Å, α = 107.4120(10)°, β = 94.2900(10)°, γ = 105.5650(10)°, space group , Z = 2. The number of symmetrically unique reflections having I > 2σ( I ) is 7636, R = 0.0465, and R w = 0.1198. The newly prepared complex contains, in its unit cell, two [Cu 3 L · 4Py] molecules which are linked to form a dimer on account of phenoxo bridges (the Cu-O bond length is 2.555 the Cu…Cu distance is 3.348 Separations between them are 9.414, 9.371, and 9.667 of temperature is satisfactorily fitted in terms of a triangular cluster model (−2 J = 2.2 cm −1 ) with extra intermolecular interactions ( zJ ′ = 0.4 cm −1 ). EPR spectra of solutions at 360–380 K feature a poorly resolved HFS, whose modeling gives a satisfactory result with allowance for the interaction of unpaired electrons with three equivalent copper nuclei ( g = 2.098; a Cu = 25.8 × 10 −4 cm −1 ).
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content type line 23
ISSN:0036-0236
1531-8613
DOI:10.1134/S0036023611040243