Preparation, characterization and X-ray analysis of [Co2(Cl)2tpmc](BF4)2. Comparative structural analysis with the complexes having analogous geometries and ligands
Само за регистроване кориснике
2007
Аутори
Vučković, GordanaTanasković, Slađana B.
Rychlewska, Urszula

Radanović, Dušanka

Mroziñski, Jerzy
Korabik, Maria
Чланак у часопису (Објављена верзија)

Метаподаци
Приказ свих података о документуАпстракт
A novel binuclear Co(II) complex, [Co2(Cl)2tpmc](BF4)2 (tpmc = N,N′,N″,N‴-tetrakis(2-pyridylmethyl)-1,4,8,11-tetraaz acyclotetradecane), was prepared and structurally characterized by X-ray diffraction analysis at low temperature. The complex crystallizes in P21/c space group of the monoclinic crystal system, and its crystals are isomorphic with those of [Cu2(Br)2tpmc](ClO4)2 complex. In the crystal structure the complex cations [Co2(Cl)2tpmc]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 Å. 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.
Кључне речи:
Chloro ligand / Co(II) dimeric complex / Magnetic properties / Pendant azamacrocycles / X-ray analysisИзвор:
Journal of Molecular Structure, 2007, 827, 1-3, 80-87Издавач:
- Elsevier
Финансирање / пројекти:
- Хемијске и биохемијске консеквенце метал-лиганд интеракција, II. део (RS-142017)
- Синтезе, физичке, структурне и биолошке карактеристике нових комплексних једењења (RS-142028)
DOI: 10.1016/j.molstruc.2006.05.009
ISSN: 0022-2860
WoS: 000244400100011
Scopus: 2-s2.0-33846508069
Институција/група
IHTMTY - JOUR AU - Vučković, Gordana AU - Tanasković, Slađana B. AU - Rychlewska, Urszula AU - Radanović, Dušanka AU - Mroziñski, Jerzy AU - Korabik, Maria PY - 2007 UR - https://cer.ihtm.bg.ac.rs/handle/123456789/4250 AB - A novel binuclear Co(II) complex, [Co2(Cl)2tpmc](BF4)2 (tpmc = N,N′,N″,N‴-tetrakis(2-pyridylmethyl)-1,4,8,11-tetraaz acyclotetradecane), was prepared and structurally characterized by X-ray diffraction analysis at low temperature. The complex crystallizes in P21/c space group of the monoclinic crystal system, and its crystals are isomorphic with those of [Cu2(Br)2tpmc](ClO4)2 complex. In the crystal structure the complex cations [Co2(Cl)2tpmc]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 Å. 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 T2 - Journal of Molecular Structure T1 - Preparation, characterization and X-ray analysis of [Co2(Cl)2tpmc](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 = "Vučković, Gordana and Tanasković, Slađana B. and Rychlewska, Urszula and Radanović, Dušanka and Mroziñski, Jerzy and Korabik, Maria", year = "2007", abstract = "A novel binuclear Co(II) complex, [Co2(Cl)2tpmc](BF4)2 (tpmc = N,N′,N″,N‴-tetrakis(2-pyridylmethyl)-1,4,8,11-tetraaz acyclotetradecane), was prepared and structurally characterized by X-ray diffraction analysis at low temperature. The complex crystallizes in P21/c space group of the monoclinic crystal system, and its crystals are isomorphic with those of [Cu2(Br)2tpmc](ClO4)2 complex. In the crystal structure the complex cations [Co2(Cl)2tpmc]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 Å. 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", journal = "Journal of Molecular Structure", title = "Preparation, characterization and X-ray analysis of [Co2(Cl)2tpmc](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" }
Vučković, G., Tanasković, S. B., Rychlewska, U., Radanović, D., Mroziñski, J.,& Korabik, M.. (2007). Preparation, characterization and X-ray analysis of [Co2(Cl)2tpmc](BF4)2. Comparative structural analysis with the complexes having analogous geometries and ligands. in Journal of Molecular Structure Elsevier., 827(1-3), 80-87. https://doi.org/10.1016/j.molstruc.2006.05.009
Vučković G, Tanasković SB, Rychlewska U, Radanović D, Mroziñski J, Korabik M. Preparation, characterization and X-ray analysis of [Co2(Cl)2tpmc](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 .
Vučković, Gordana, Tanasković, Slađana B., Rychlewska, Urszula, Radanović, Dušanka, Mroziñski, Jerzy, Korabik, Maria, "Preparation, characterization and X-ray analysis of [Co2(Cl)2tpmc](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 . .