Display options
Cite
Sarkar B, Ray MS, Li YZ, et al. Ferromagnetic coupling in trinuclear, partial cubane Cu(II) complexes with a micro(3)-OH core: magnetostructural correlations. Chemistry. 2007;13(33):9297-309doi: 10.1002/chem.200700628.
Sarkar, B., Ray, M. S., Li, Y. Z., Song, Y., Figuerola, A., Ruiz, E., Cirera, J., Cano, J., & Ghosh, A. (2007). Ferromagnetic coupling in trinuclear, partial cubane Cu(II) complexes with a micro(3)-OH core: magnetostructural correlations. Chemistry (Weinheim an der Bergstrasse, Germany), 13(33), 9297-309. https://doi.org/10.1002/chem.200700628
Sarkar, Biswarup, et al. "Ferromagnetic coupling in trinuclear, partial cubane Cu(II) complexes with a micro(3)-OH core: magnetostructural correlations." Chemistry (Weinheim an der Bergstrasse, Germany) vol. 13,33 (2007): 9297-309. doi: https://doi.org/10.1002/chem.200700628
Sarkar B, Ray MS, Li YZ, Song Y, Figuerola A, Ruiz E, Cirera J, Cano J, Ghosh A. Ferromagnetic coupling in trinuclear, partial cubane Cu(II) complexes with a micro(3)-OH core: magnetostructural correlations. Chemistry. 2007;13(33):9297-309. doi: 10.1002/chem.200700628. PMID: 17763507.
Copy Download .nbib Format: NLM
Share it on

Chemistry. 2007;13(33):9297-309. doi: 10.1002/chem.200700628.

Ferromagnetic coupling in trinuclear, partial cubane Cu(II) complexes with a micro(3)-OH core: magnetostructural correlations.

Chemistry (Weinheim an der Bergstrasse, Germany)

Biswarup Sarkar, Mau Sinha Ray, Yi-Zhi Li, You Song, Albert Figuerola, Eliseo Ruiz, Jordi Cirera, Joan Cano, Ashutosh Ghosh

Affiliations

  1. Department of Chemistry, University College of Science, University of Calcutta, Kolkata, India.

PMID: 17763507 DOI: 10.1002/chem.200700628

Abstract

Three new trinuclear copper(II) complexes, [(CuL(1))(3)(micro(3)-OH)][ClO(4)](2).3 H(2)O (1), [(CuL(2))(3)(micro(3)-OH)][ClO(4)](2).H(2)O (2), and [(CuL(3))(3)(micro(3)-OH)][ClO(4)](2).7 H(2)O (3) have been synthesized from the three tridentate Schiff bases HL(1), HL(2), and HL(3) (HL(1)=6- aminomethyl-3-methyl-1-phenyl-4-azahex-2-en-1-one, HL(2)=6-aminoethyl-3-methyl-1-phenyl-4-azahex-2-en-1-one, and HL(3)=6-aminodimethyl-3-methyl-1-phenyl-4-azahex-2-en-1-one). They have been characterized by X-ray crystallography and IR and UV spectroscopy, and their magnetic properties have been investigated. All the compounds contain a partial cubane [Cu(3)O(4)] core consisting of the trinuclear unit [(CuL)(3)(micro(3)-OH)](2+), perchlorate ions, and water molecules. In each of the complexes, the copper atoms are five-coordinate with a distorted square-pyramidal geometry except complex 1, in which one of the Cu(II) of the trinuclear unit is weakly coordinated to one of the perchlorate ions. Magnetic measurements performed in SQUID MPMS-XL7 using polycrystalline samples at an applied field of 2 kOe indicate a global intramolecular ferromagnetic coupling. Magnetostructural correlations have been calculated on the basis of theoretical models without symmetry restriction. Continuous shape measurements are an appropriate tool for establishing the degree of distortion of the Cu(II) from square-planar geometry. Structural, theoretical, and experimental magnetic data indicate that the higher the degree of distortion, the greater the ferromagnetic coupling.

Publication Types