Wyniki wyszukiwania - BazTech

Ograniczanie wyników

Znaleziono wyników: 2

Liczba wyników na stronie

Wyniki wyszukiwania

Wyszukiwano:
w słowach kluczowych: macrocyclic complex

Sortuj według:

Ogranicz wyniki do:

Magnetic Properties of Novel One-Dimensional Ni(II) Chain and Binuclear Cu(II)-Ni(II) Complexes

Ren S., Ma S. L.

Polish Journal of Chemistry

2009

Vol. 83, nr 2

181-186

A novel one-dimensional chain with nickel(II) macrocyclic complex and extended terephthalato-bridged, namely, [Ni(L)(TPHA)]ź8H2O (1) (L = 1,3,6,9,11,14- hexaaza-tricyclo[12.2.1.16,9]octadecane, TPHA = terephthalate dianion) and a new binuclear Cu(II)-Ni(II) complex, [Cu(oxap)Ni(bpy)2](ClO4)2ź2H2O (2) [oxap = N,N?- bis(2-aminopropyl)oxamido dianion, bpy = 2,2?-bipyridine] have been magnetically characterized by variable-temperature magnetic susceptibilities measurements. The fitting results of the agnetic data of all two complexes support exhibiting the occurrence of an antiferromagnetic coupling with J values of -1.25 cm-1 for 1 and -93.9 cm-1 for 2, respectively.

Bimetallic complexes with macrocyclic ligands. Variation of magnetic exchange interactions in some heteronuclear thiocyanato-bridged compounds

Tomkiewicz A., Kłak J., Mroziński M.

Materials Science Poland

2004

Vol. 22, No. 3

252--263

A series of heterobinuclear, thiocyanato-bridged complexes of macrocyclic ligands of copper(II) and nickel(II) have been characterized by variable-temperature magnetic susceptibility (1.72-300 K). The complexes have the following composition: (CuL1)3[Fe(NCS)6]2ź3H2O (1), (CuL1)[Ni(NCS)6]ź2H2O (2), (CuL1)[Co(NCS)4]ź3H2O (3), where L1 is 5,12-dimethyl-[14]-1,4,8,11-tetraazacyclotetradeca-4,11-diene and (NiL2)3[Fe(NCS)6]2ź2H2O (4), (NiL2)[Co(NCS)4]ź3H2O (5), (NiL2)2[Cr(NCS)6] ClO4 (6), where L2 is 5,7,12,14-tetramethyl-[14]-1,4,8,11-tetraazacyclotetradeca-4,11-diene. The results indicate that all of them behave as weakly interacting magnets.