1. Incorporation of M(H2O)62+ between layers {M(H2O)2Ru2(CO3)4Cl2}n2n− (M = Zn, Mn): syntheses, structures and magnetic properties.
- Author
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Liu, Bin, Jia, Yan-Yan, Yang, Huai-Qing, Yang, Jian-Hui, and Xue, Gang-Lin
- Subjects
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METAL ions , *AQUEOUS solutions , *CHEMICAL synthesis , *CHEMICAL reactions , *CHEMICAL precursors , *MAGNETIC properties - Abstract
Isostructural heterometallic diruthenium carbonates KM(H2O)6[M(H2O)2Ru2(CO3)4Cl2]·4H2O [M = Zn (1) and Mn (2)] were synthesized from the reaction of the precursors [Ru2(CO3)4Cl2]5− and transitional metal ions in aqueous solution. Complexes 1 and 2 show layered structures in which Ru2(ii,iii) units are linked by four octahedral environment M(H2O)22+ ions in a cross fashion and vice versa giving a negative bimetallic square grid layer {M(H2O)2Ru2(CO3)4Cl2}n3n−. M(H2O)62+ ions, linked by K+ forming zigzag chain {KM(H2O)6}n3+, are located in the void spaces between the layers. The adjacent bimetallic carbonate layers are connected with K–O and K–Cl bonds, and hydrogen bonding, forming a supramolecular 3D framework structure. Their magnetic properties were characterized in detail, and intralayer ferromagnetic coupling between the Ru2 dimer and Mn2+ ion, as well as long-range ordering (Tc = 5.2 K) coexistence of domain movement behavior were observed for complex 2. [ABSTRACT FROM AUTHOR]
- Published
- 2013
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