共 50 条
Formation of a Magnetically Coupled Neutral [4 x 4] Square Grid from a 2,6-Pyridinedicarbaldehyde Bis(hydrazone) Ligand
被引:12
|作者:
Adhikary, Amit
[1
]
Goswami, Soumyabrata
[1
]
Sheikh, Javeed Ahmad
[1
]
Konar, Sanjit
[1
]
机构:
[1] IISER Bhopal, Dept Chem, Bhopal 462066, MP, India
关键词:
Self-assembly;
Magnetic properties;
Magnetostructural correlation;
Copper;
Square grids;
METAL-ORGANIC FRAMEWORK;
SPIN-CROSSOVER;
COMPLEXES;
CLUSTER;
COPPER(II);
SERIES;
BINDING;
D O I:
10.1002/ejic.201301536
中图分类号:
O61 [无机化学];
学科分类号:
070301 ;
081704 ;
摘要:
The synthesis, characterization, magnetic properties, and magnetostructural correlation of a square-grid complex having the molecular formula [Cu16L81](dmf)(3) (1) {H4L1 = 2,6-bis[(3-methoxysalicylidene)hydrazinecarbonyl]pyridine} is described. Reaction of the H4L1 ligand and the Cu2+ salt generates complex 1, which exhibits a rare grid structure with a [4x4] metallic core of Cu2+. Structural studies revealed a mixed coordination geometry around the Cu2+ core. The molecule has a fourfold rotational axis and one inversion center. Magnetic investigations showed the coexistence of both ferro- and antiferromagnetic spin exchanges, though antiferromagnetic exchange dominates over ferromagnetic coupling in the low-temperature region.
引用
收藏
页码:963 / 967
页数:5
相关论文