Spin-Crossover Phenomenon in a Pentanuclear Iron(II) Cluster Helicate
- Zheng Yan (194231)
- Wei Liu (20030)
- Yuan-Yuan Peng (2661931)
- Yan-Cong Chen (1411087)
- Quan-Wen Li (1755667)
- Zhao-Ping Ni (1637287)
- Ming-Liang Tong (1411093)
DOIAbstract
The first spin-crossover cluster helicate [{Fe<sup>II</sup>(μ-bpt)<sub>3</sub>}<sub>2</sub>Fe<sup>II</sup><sub>3</sub>(μ<sub>3</sub>-O)][Fe<sup>II</sup><sub>2</sub>(μ-Cl)(μ-bpt)(NCS)<sub>4</sub>(H<sub>2</sub>O)]·2H<sub>2</sub>O·C<sub>2</sub>H<sub>5</sub>OH [Hbpt = 3,5-bis(pyridin-2-yl)-1,2,4-triazole] was reported, in which one spin-crossover unit and one low-spin triple-stranded [Fe<sup>II</sup>(bpt)<sub>3</sub>]<sup>−</sup> unit wrapped a rare planar [Fe<sup>II</sup><sub>3</sub>(μ<sub>3</sub>-O)]<sup>4+</sup> core to form a bis(triple-helical) cation with trigonal-bipyramidal topology. The origin of different magnetic behaviors of two [Fe<sup>II</sup>(bpt)<sub>3</sub>]<sup>−</sup> units could be ascribed to their different intermolec...
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