Structural, spectral and magnetic properties of Ni(II), Co(II) and Cd(II) compounds with imidazole derivatives and silanethiolate ligands - Publikacja - MOST Wiedzy

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Structural, spectral and magnetic properties of Ni(II), Co(II) and Cd(II) compounds with imidazole derivatives and silanethiolate ligands

Abstrakt

A series of new metal heteroleptic complexes have been obtained in simple reactions of 1-(3-aminopropyl)-imidazole (api) and 1,4-bis(imidazol-1-yl)-butane (bbi) ligands with metal silanethiolates or acetylacetonates. The obtained complexes are the coordination polymers [Ni{SSi(tBuO)3}2(μ-api)]n1, [Co{SSi(tBuO)3}2(μ-api)]n2, [Cd{SSi(tBuO)3}2(μ-api)·2CH3OH]n3, [Cd{SSi(tBuO)3}2(μ-bbi)·CHCl3]n4 and the dimer [Co{SSi(tBuO)3}2(μ-bbi)·3CH3OH]25. Another coordination polymer with the formula [Ni(acac)2(μ-bbi)·9CHCl3]n6 was obtained in the reaction of Ni(acac)2 with (tBuO)3SiSH (TBST) and bbi; however, the silanethiolate residue didn't coordinate to the metallic center as intended. The molecular structures of 1–6 were determined by single-crystal X-ray diffraction. Compounds 1–5 were additionally characterized by thermogravimetry (TGA) and powder X-ray diffraction. The emission spectra of the Cd complexes 3 and 4 were recorded in the solid state at ambient temperature, whereas 1, 2 and 5 were subjected to magnetic studies. Variable-temperature magnetic measurements of the polycrystalline sample 1 suggest the presence of weak intra-chain magnetic interactions between the nickel(II) ions. Magnetic studies of 2 and 5 show their paramagnetic behavior. For sample 1 as well as samples 2 and 5, a noticeable influence of single-ion magnetic anisotropy on their magnetic behavior has been revealed.

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Accepted albo Published Version
Licencja
Copyright (Royal Society of Chemistry 2017)

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Kategoria:
Publikacja w czasopiśmie
Typ:
artykuł w czasopiśmie wyróżnionym w JCR
Opublikowano w:
CRYSTENGCOMM nr 19, wydanie 25, strony 3506 - 3518,
ISSN: 1466-8033
Język:
angielski
Rok wydania:
2017
Opis bibliograficzny:
Kowalkowska D., Dołęga A., Nedelko N., Hnatejko Z., Ponikiewski Ł., Matracka A., Ślawska-Waniewska A., Strągowska A., Słowy K., Gazda M., Pladzyk A.: Structural, spectral and magnetic properties of Ni(II), Co(II) and Cd(II) compounds with imidazole derivatives and silanethiolate ligands// CRYSTENGCOMM. -Vol. 19, iss. 25 (2017), s.3506-3518
DOI:
Cyfrowy identyfikator dokumentu elektronicznego (otwiera się w nowej karcie) 10.1039/c7ce00555e
Weryfikacja:
Politechnika Gdańska

wyświetlono 261 razy

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