Incorporation of M(H2O)62+ between layers {M(H2O)2Ru2(CO3)4Cl2}n2n- (M = Zn, Mn): syntheses, structures and magnetic properties

被引：18
|
作者：
Liu, Bin [1 ]
Jia, Yan-Yan [1 ]
Yang, Huai-Qing [1 ]
Yang, Jian-Hui [1 ]
Xue, Gang-Lin [1 ]
机构：
[1] Northwest Univ, Coll Chem & Mat Sci, Key Lab Synthet & Nat Funct Mol Chem, Shaanxi Key Lab Physicoinorgan Chem,Minist Educ, Xian 710069, Peoples R China
来源：
DALTON TRANSACTIONS | 2013年 / 42卷 / 48期
基金：
中国国家自然科学基金;
关键词：
MOLECULE-BASED MAGNETS; 3-DIMENSIONAL NETWORK; BUILDING-BLOCKS; DIRUTHENIUM; UNITS; FERROMAGNETISM; RELAXATION; CHIRALITY; BEHAVIOR; DIMERS;
D O I：
10.1039/c3dt51612a
中图分类号：
O61 [无机化学];
学科分类号：
070301 ; 081704 ;
摘要：
Isostructural heterometallic diruthenium carbonates KM(H2O)(6)[M(H2O)(2)Ru-2(CO3)(4)Cl-2]center dot 4H(2)O [M = Zn (1) and Mn (2)] were synthesized from the reaction of the precursors [Ru-2(CO3)(4)Cl-2](5-) and transitional metal ions in aqueous solution. Complexes 1 and 2 show layered structures in which Ru-2(II,III) units are linked by four octahedral environment M(H2O)(2)(2+) ions in a cross fashion and vice versa giving a negative bimetallic square grid layer {M(H2O)(2)Ru-2(CO3)(4)Cl-2}(n)(3n-). M(H2O)(6)(2+) ions, linked by K+ forming zigzag chain {KM(H2O)(6)}(n)(3+), 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 Ru-2 dimer and Mn2+ ion, as well as long-range ordering (T-c = 5.2 K) coexistence of domain movement behavior were observed for complex 2.
引用
收藏
页码：16742 / 16748
页数：7
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