TY - JOUR
T1 - Syntheses, structures, and magnetic properties of heterobimetallic complexes based on tetracyanometallic building blocks
AU - Wen, He Rui
AU - Wang, Cai Feng
AU - Du, Zi Yi
AU - Zuo, Jing Lin
PY - 2008/6/27
Y1 - 2008/6/27
N2 - Two tetracyanometalate building blocks, [Fe(5,5′-dmbipy)(CN)4]- (2) and [Fe(4,4′-dmbipy)(CN)4]- (3) (5,5′-dmbipy = 5,5′-dimethyl-2,2′-bipyridine; 4,4′-dmbipy = 4,4′-dimethyl-2,2′-bipyridine), and two cyano-bridged heterobimetallic complexes, [Cu2(bpca)2(H2O)2Fe2(5,5′-dmbipy)2(CN)8] · 2[Cu(bpca)Fe(5,5′-dmbipy)(CN)4] · 4H2O (4) and [Cu(bpca)Fe(4,4′-dmbipy)(CN)4]n (5) (bpca = bis(2-pyridylcarbonyl)amidate), have been synthesized and structurally characterized. Complex 4 contains two dinuclear and one tetranuclear heterobimetallic clusters in an asymmetric unit whereas the structure of complex 5 features a one-dimensional heterobimetallic zigzag chain. The Cu(II) ion is penta-coordinated in the form of a distorted square-based pyramid. Magnetic studies show ferromagnetic coupling between Cu(II) and Fe(III) ions with g = 2.28, J1 = 2.64 cm-1, J2 = 5.40 cm-1 and TIP = -2.36 × 10-3 for complex 4, and g = 2.17, J = 4.82 cm-1 and zJ′ = 0.029 cm-1 for complex 5.
AB - Two tetracyanometalate building blocks, [Fe(5,5′-dmbipy)(CN)4]- (2) and [Fe(4,4′-dmbipy)(CN)4]- (3) (5,5′-dmbipy = 5,5′-dimethyl-2,2′-bipyridine; 4,4′-dmbipy = 4,4′-dimethyl-2,2′-bipyridine), and two cyano-bridged heterobimetallic complexes, [Cu2(bpca)2(H2O)2Fe2(5,5′-dmbipy)2(CN)8] · 2[Cu(bpca)Fe(5,5′-dmbipy)(CN)4] · 4H2O (4) and [Cu(bpca)Fe(4,4′-dmbipy)(CN)4]n (5) (bpca = bis(2-pyridylcarbonyl)amidate), have been synthesized and structurally characterized. Complex 4 contains two dinuclear and one tetranuclear heterobimetallic clusters in an asymmetric unit whereas the structure of complex 5 features a one-dimensional heterobimetallic zigzag chain. The Cu(II) ion is penta-coordinated in the form of a distorted square-based pyramid. Magnetic studies show ferromagnetic coupling between Cu(II) and Fe(III) ions with g = 2.28, J1 = 2.64 cm-1, J2 = 5.40 cm-1 and TIP = -2.36 × 10-3 for complex 4, and g = 2.17, J = 4.82 cm-1 and zJ′ = 0.029 cm-1 for complex 5.
KW - Crystal structures
KW - Cyano-bridged complexes
KW - Heterobimetallic
KW - Magnetic properties
KW - Tetracyanometalate
UR - http://www.scopus.com/inward/record.url?scp=44849118271&partnerID=8YFLogxK
U2 - 10.1016/j.ica.2008.02.036
DO - 10.1016/j.ica.2008.02.036
M3 - 文章
AN - SCOPUS:44849118271
SN - 0020-1693
VL - 361
SP - 2901
EP - 2908
JO - Inorganica Chimica Acta
JF - Inorganica Chimica Acta
IS - 9-10
ER -