Abstract
Abstract A cyanide-bridged bimetallic compound, [Ni(1,1-dmen)2]2[Fe(CN)6](BPDS)0.5·4H2O (1) (1,1-dmen = 1,1-dimethylethylenediamine, BPDS2− = biphenyl-4,4′-disulfonate), has been prepared. It has a pseudo 2-D network structure based on a Fe4Ni4 square unit with two Fe–CN–Ni–NC–Fe and two Fe–CN···H2O–Ni–NC–Fe linkages and shows a metamagnetic ordering with TC = 3.3 K. The dehydration of 1 at 150 °C has afforded [Ni(1,1-dmen)2]2[Fe(CN)6](BPDS)0.5 (1a). It has a definite 2-D network structure based on a Fe4Ni4 square unit with four Fe–CN–Ni–NC–Fe linkages and shows essentially a ferromagnetic ordering with TC = 10.7 K under weak applied field (> 250 G). 1a is hygroscopic and adsorbed atmospheric moisture to afford [Ni(1,1-dmen)2]2[Fe(CN)6](BPDS)0.5·2H2O (1b), which has a pseudo 2-D network structure similar to that of 1 and shows a metamagnetic ordering with TC = 4.0 K. 1a and 1b can be interconverted by dehydration at 150 °C and hydration in open air at room temperature, producing a unique molecular magnetic system exhibiting a reversible ferromagnetism/metamagnetism modulation.
References
18
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Dates
Type | When |
---|---|
Created | 22 years, 11 months ago (Sept. 6, 2002, 6:20 a.m.) |
Deposited | 1 year, 7 months ago (Jan. 19, 2024, 4:01 p.m.) |
Indexed | 1 year, 7 months ago (Jan. 20, 2024, 5:37 a.m.) |
Issued | 23 years, 1 month ago (Aug. 1, 2002) |
Published | 23 years, 1 month ago (Aug. 1, 2002) |
Published Online | 23 years ago (Aug. 15, 2002) |
Published Print | 23 years, 1 month ago (Aug. 1, 2002) |
@article{Usuki_2002, title={A Bimetallic Magnetic System Exhibiting Reversible Ferromagnetism/Metamagnetism Modulation}, volume={75}, ISSN={1348-0634}, url={http://dx.doi.org/10.1246/bcsj.75.1693}, DOI={10.1246/bcsj.75.1693}, number={8}, journal={Bulletin of the Chemical Society of Japan}, publisher={Oxford University Press (OUP)}, author={Usuki, Naoki and Ohba, Masaaki and Okawa, Hisashi}, year={2002}, month=aug, pages={1693–1698} }