Repozytorium
Wyszukaj
Kolekcje
Inne
A CuIINiII complex with ethylenediamine: crystal structure and ferromagnetic behaviour of an aqua-bridged heterometallic chain containing ambidentate Ni(OAc)42- blocks.
Autorzy
Rok wydania
2010
Czasopismo
European Journal of Inorganic Chemistry
Strony
3529-3535
DOI
10.1002/ejic.201000212
Kolekcja
Język
Angielski
Typ publikacji
Artykuł
A one‐pot reaction of copper powder and nickel and ammonium acetates in a CH3OH solution of ethylenediamine (en) yields a unique 1D aqua‐bridged polymer [Cu(en)2(μ2‐H2O)2Ni(OAc)4]n·4nH2O (1) with an ambidentate Ni(OAc)42– fragment that has not been previously characterized. The basic structural motif of 1 contains a previously unreported heterometallic M(μ2‐H2O)M′ aqua‐bridge chain with alternating metal atoms. A complex system of N/O–H···O hydrogen bonds strengthens the polymeric chains and links them into a supramolecular three‐dimensional network. Variable‐temperature magnetic susceptibility measurements of 1 revealed a weak ferromagnetic coupling (J = 1.1 cm–1) between the paramagnetic copper(II) and nickel(II) ions, which is transmitted through the oxygen bridges.
Słowa kluczowe
copper, nickel, chain structures, Direct synthesis, ferromagnetic behaviour, high-field EPR spectroscopy
Adres publiczny
https://doi.org/10.1002/ejic.201000212
Strona internetowa wydawcy
Podobne publikacje
A new Cu/Zn carboxylato-bridged 1D polymer: direct synthesis, X-ray structure and magnetic properties.
Buvaylo Elena A., Kokozay Vladimir N., Vassilyeva Olga Yu., Skelton Brian W., Jezierska Julia, Ozarowski Andrew
Synthesis, crystal structure and magnetic properties of heterodimetallic ReIVCuII complexes.
Tomkiewicz Alina, Mroziński Jerzy, Brüdgam I., Hartl F.
A strategy for new macrocycle magnetic materials synthesis.
Mroziński Jerzy, Bieńko Alina