Abstract
A novel topological frustrated pentanuclear cluster helicate [(Cu II(μ-L)3}2Cu(μ3-OH)] 3+ (L=3, 5bis(2-pyridyl)pyrazolate) has been synthesized and characterized. This cluster has a helical arrangement of ligands around the central metal core. Dzyaloshinsky-Moriya interactions are essential components to observe a gradual magnetization and forbidden transitions of high-field/multi-frequency (HF/MF)-ESR. The origin of the magnetic anisotropy of this compound is influenced by its helical spin structure, and consequently, the Cu5-cluster helicate introduces a unique magnetic anisotropy. This observation is a direct evidence of the topological part of the new spin phase in a magnetic system.
Original language | English |
---|---|
Pages (from-to) | 11139-11144 |
Number of pages | 6 |
Journal | Chemistry - A European Journal |
Volume | 16 |
Issue number | 36 |
DOIs | |
Publication status | Published - 2010 Sep 24 |
Externally published | Yes |
Keywords
- Cluster compounds
- Helical structures
- Magnetic anisotropy
- Spin frustration
ASJC Scopus subject areas
- Catalysis
- Organic Chemistry