Repozytorium
Wyszukaj
Kolekcje
Inne
Structural diversity and magnetic properties of thiocyanate copper(II) complexes.
Autorzy
Rok wydania
2013
Czasopismo
Numer woluminu
52
Strony
1276-1286
DOI
10.1016/j.poly.2012.06.019
Kolekcja
Język
Angielski
Typ publikacji
Artykuł
Seven novel compounds [Cu(pz)2(SCN)2]n (1), [Cu(ind)2(SCN)2]n.nH2O (2), [Cu(4-apy)(SCN)2]n (3), [Cu(4-cpy)(SCN)2]n (4), [Cu2(μ-SCN)2(SCN)2(2-aepy)2]n (5), [Cu(2-ambzim)(SCN)2]n (6) and [Cu2(μ-SCN)2(SCN)2(pybzim)2] (7) have been synthesized and characterised structurally (by single X-Ray analysis) and spectroscopically. Variable-temperature magnetic susceptibility measurements were performed for the compounds 1, 3, 5, 6 and 7 and their magneto-structural properties were discussed. In structure 1, the weak CuS coordination bonds expand molecules [Cu(pz)2(SCN)2] to the layer extending along crystallographic (100) plane. In 2, 3 and 4, neutral trans-[Cu(ind)2(SCN)2], trans-[Cu(4-apy)2(SCN)2] and cis-[Cu(ambzim)(SCN)2] molecules are linked by end-to-end thiocyanate groups to an infinite one-dimensional chains. The structures 5 and 7 include neutral dinuclear entities. Copper(II) centers of 5 are doubly bridged by linear thiocyanate anions in end-on fashion, whereas the central ions of 7 are linked by SCN− ions in end-to-end coordination mode. The dinuclear [Cu2(μ1,1-SCN)2(SCN)2(2-aepy)2] units are further linked by μ1,3-double end-to-end thiocyanate groups. Simultaneous existence of both EE and EO bridging modes makes the complex 5 a rare example of thiocyanate-bridged copper(II) structures.
Słowa kluczowe
coordination polymers, copper, Thiocyanate bridge, X-ray, UV-Vis spectra, magnetic measurements
Adres publiczny
http://dx.doi.org/10.1016/j.poly.2012.06.019
Strona internetowa wydawcy
Podobne publikacje
Novel copper complexes based on the thiocyanate bridge - synthesis, X-ray studies and magnetic properties.
Machura Barbara, Świtlicka Anna, Nawrot I., Mroziński Jerzy, Kruszyński Rafał
Attempts of synthesis of Hg(SCN)4-based coordination polymers in conjunction with [Cu(L-L)2]2+ building blocks.
Machura Barbara, Świtlicka Anna, Mroziński Jerzy, Kruszyński Rafał, Kusz Joachim
Novel bimetallic thiocyanate-bridged Cu(II)-Hg(II) compounds—synthesis, X-ray studies and magnetic properties.
Machura Barbara, Świtlicka Anna, Zwoliński Piotr, Mroziński Jerzy, Kalińska Bożena, Kruszyński Rafał