Synthesis and Magnetic Studies of [Cu3IILnIII] Heterotetranuclear Complexes with N,N’- Bis(3-amino-2,2-dimethylpropyl)oxamidocopper (II)

• Autorzy: Li Y. T. , Yan C. W. , Wang H. L.
• Języki publikacji: EN

Abstrakty

EN

Eleven newoxamido-bridged Cu"Ln"'-type (Ln = La, Ce, Pr.Nd, Sm, Eu, Gd, Tb, Ho, Er, Yb) heterotetranuclear complexes, namely Cu3(Me2Oxpn)3Ln(NOj)3, where Me2oxpn denotesN,N'-bis(3-amino-2,2-dimethylpropyl)oxamido dianion, have been synthesized and characterized by elemental analyses, molar conducti vity measurements, and spectro-scopic (IR, UV, ESR) studies. Cryomagnetic measurements (4.2~300 K) and studies of Cu3(Me2oxpn)jGd(NO3)3 complex have revealed that the gadolinium(Ill) and copper(II) ions arę ferromagnetically coupled with the exchang_e integraj J = +3.88 cm'1, on the basis of the spin Hamiltonian operator [H = -2J(S, o S" + S: o S" + Sj o S,>)].

Słowa kluczowe

EN

heterotetranuclear complexes; oxamido-bridge; copper(II); lanthanide(III); synthesis; magnetic properties

• Wydawca: Polskie Towarzystwo Chemiczne
• Czasopismo: Polish Journal of Chemistry
• Rocznik: 2001
• Tom: Vol. 75, nr 12
• Strony: 1817--1824
• Opis fizyczny: Bibliogr. 30 poz., rys.

Twórcy

autor

Li Y. T.

autor

Yan C. W.

autor

Wang H. L.

• Department of Chemistry, Qufu Normal University, Qufu Shandong, 273165, P. R. China