Preparation, characterization and X-ray analysis of [Co-2(Cl)(2)tpmc](BF4)(2). Comparative structural analysis with the complexes having analogous geometries and ligands
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2007
Authors
Vucković, GordanaTanasković, Slađana
Rychlewska, U.
Radanović, Dušanka
Mrozinski, J.
Korabik, M.
Article (Published version)
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A novel binuclear Co(II) complex, [Co-2(Cl)(2)tpmc](BF4)(2) (tpmc=N,N,N",N"'-tetrakis(2-pyridylmethyl)-1,4,8,11-tetraazacyclotetradecane), was prepared and structurally characterized by X-ray diffraction analysis at low temperature. The complex crystallizes in P2(1)/c space group of the monoclinic crystal system, and its crystals are isomorphic with those Of [Cu-2(Br)(2)tpmc](ClO4)(2) complex. In the crystal structure the complex cations [Co-2(Cl)(2)tpmc](2+) are settled around the inversion centres. Cobalt(II) is exo coordinated with four macrocyclic N atoms, and Cl- supplements the fifth coordination site. Based on the index of trigonality, the coordination polyhedron formed around Co(II) ion is described as distorted trigonal bipyramid. Two metal centres are at a distance of 5.710 angstrom. This is the first Co(II) complex for which X-ray analysis confirmed a chair conformation of tpmc ligand. IR, EPR (X-band) and UV/VIS absorption and reflectance spectra, molar conductivities and m...agnetic measurements (SQUID) are used to study the investigated complex. A comparative structural analysis with some of the described Co(II) and Cu(II) complexes of analogous geometries and type of pendant azamacrocyclic ligands was also done.
Keywords:
Co(II) dimeric complex / pendant azamacrocycles / chloro ligand / X-ray analysis / magnetic propertiesSource:
Journal of Molecular Structure, 2007, 827, 1-3, 80-87Publisher:
- Elsevier Science BV, Amsterdam
Funding / projects:
- Hemijske i biohemijske konsekvence metal-ligand interakcija, II. deo (RS-MESTD-MPN2006-2010-142017)
- Sinteze, fizičke, strukturne i biološke karakteristike novih kompleksnih jedenjenja (RS-MESTD-MPN2006-2010-142028)
DOI: 10.1016/j.molstruc.2006.05.009
ISSN: 0022-2860
WoS: 000244400100011
Scopus: 2-s2.0-33846508069
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PharmacyTY - JOUR AU - Vucković, Gordana AU - Tanasković, Slađana AU - Rychlewska, U. AU - Radanović, Dušanka AU - Mrozinski, J. AU - Korabik, M. PY - 2007 UR - https://farfar.pharmacy.bg.ac.rs/handle/123456789/962 AB - A novel binuclear Co(II) complex, [Co-2(Cl)(2)tpmc](BF4)(2) (tpmc=N,N,N",N"'-tetrakis(2-pyridylmethyl)-1,4,8,11-tetraazacyclotetradecane), was prepared and structurally characterized by X-ray diffraction analysis at low temperature. The complex crystallizes in P2(1)/c space group of the monoclinic crystal system, and its crystals are isomorphic with those Of [Cu-2(Br)(2)tpmc](ClO4)(2) complex. In the crystal structure the complex cations [Co-2(Cl)(2)tpmc](2+) are settled around the inversion centres. Cobalt(II) is exo coordinated with four macrocyclic N atoms, and Cl- supplements the fifth coordination site. Based on the index of trigonality, the coordination polyhedron formed around Co(II) ion is described as distorted trigonal bipyramid. Two metal centres are at a distance of 5.710 angstrom. This is the first Co(II) complex for which X-ray analysis confirmed a chair conformation of tpmc ligand. IR, EPR (X-band) and UV/VIS absorption and reflectance spectra, molar conductivities and magnetic measurements (SQUID) are used to study the investigated complex. A comparative structural analysis with some of the described Co(II) and Cu(II) complexes of analogous geometries and type of pendant azamacrocyclic ligands was also done. PB - Elsevier Science BV, Amsterdam T2 - Journal of Molecular Structure T1 - Preparation, characterization and X-ray analysis of [Co-2(Cl)(2)tpmc](BF4)(2). Comparative structural analysis with the complexes having analogous geometries and ligands VL - 827 IS - 1-3 SP - 80 EP - 87 DO - 10.1016/j.molstruc.2006.05.009 ER -
@article{ author = "Vucković, Gordana and Tanasković, Slađana and Rychlewska, U. and Radanović, Dušanka and Mrozinski, J. and Korabik, M.", year = "2007", abstract = "A novel binuclear Co(II) complex, [Co-2(Cl)(2)tpmc](BF4)(2) (tpmc=N,N,N",N"'-tetrakis(2-pyridylmethyl)-1,4,8,11-tetraazacyclotetradecane), was prepared and structurally characterized by X-ray diffraction analysis at low temperature. The complex crystallizes in P2(1)/c space group of the monoclinic crystal system, and its crystals are isomorphic with those Of [Cu-2(Br)(2)tpmc](ClO4)(2) complex. In the crystal structure the complex cations [Co-2(Cl)(2)tpmc](2+) are settled around the inversion centres. Cobalt(II) is exo coordinated with four macrocyclic N atoms, and Cl- supplements the fifth coordination site. Based on the index of trigonality, the coordination polyhedron formed around Co(II) ion is described as distorted trigonal bipyramid. Two metal centres are at a distance of 5.710 angstrom. This is the first Co(II) complex for which X-ray analysis confirmed a chair conformation of tpmc ligand. IR, EPR (X-band) and UV/VIS absorption and reflectance spectra, molar conductivities and magnetic measurements (SQUID) are used to study the investigated complex. A comparative structural analysis with some of the described Co(II) and Cu(II) complexes of analogous geometries and type of pendant azamacrocyclic ligands was also done.", publisher = "Elsevier Science BV, Amsterdam", journal = "Journal of Molecular Structure", title = "Preparation, characterization and X-ray analysis of [Co-2(Cl)(2)tpmc](BF4)(2). Comparative structural analysis with the complexes having analogous geometries and ligands", volume = "827", number = "1-3", pages = "80-87", doi = "10.1016/j.molstruc.2006.05.009" }
Vucković, G., Tanasković, S., Rychlewska, U., Radanović, D., Mrozinski, J.,& Korabik, M.. (2007). Preparation, characterization and X-ray analysis of [Co-2(Cl)(2)tpmc](BF4)(2). Comparative structural analysis with the complexes having analogous geometries and ligands. in Journal of Molecular Structure Elsevier Science BV, Amsterdam., 827(1-3), 80-87. https://doi.org/10.1016/j.molstruc.2006.05.009
Vucković G, Tanasković S, Rychlewska U, Radanović D, Mrozinski J, Korabik M. Preparation, characterization and X-ray analysis of [Co-2(Cl)(2)tpmc](BF4)(2). Comparative structural analysis with the complexes having analogous geometries and ligands. in Journal of Molecular Structure. 2007;827(1-3):80-87. doi:10.1016/j.molstruc.2006.05.009 .
Vucković, Gordana, Tanasković, Slađana, Rychlewska, U., Radanović, Dušanka, Mrozinski, J., Korabik, M., "Preparation, characterization and X-ray analysis of [Co-2(Cl)(2)tpmc](BF4)(2). Comparative structural analysis with the complexes having analogous geometries and ligands" in Journal of Molecular Structure, 827, no. 1-3 (2007):80-87, https://doi.org/10.1016/j.molstruc.2006.05.009 . .