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Article

New Iron(II) Spin Crossover Complexes with Unique Supramolecular Networks Assembled by Hydrogen Bonding and Intermetallic Bonding

1
Department of Creative Technology Engineering Course of Chemical Engineering, Anan College, 265 Aoki, Minobayashi, Anan, Tokushima 774-0017, Japan
2
Department of Chemistry, Faculty of Science, Toho University, 2-2-1 Miyama, Funabashi, Chiba 274-8510, Japan
3
Department of Physics, Faculty of Science, Toho University, 2-2-1, Miyama 274-8510, Japan
*
Author to whom correspondence should be addressed.
Crystals 2018, 8(11), 415; https://doi.org/10.3390/cryst8110415
Received: 25 September 2018 / Revised: 18 October 2018 / Accepted: 20 October 2018 / Published: 5 November 2018
(This article belongs to the Special Issue Synthesis and Applications of New Spin Crossover Compounds)
Two spin crossover (SCO) coordination polymers assembled by combining FeII octahedral ion, 4-cyanopyridine (4-CNpy) and [Au(CN)2] liner unit are described. These compounds, Fe(4-CNpy)2[Au(CN)2]2·1/2(4-CNpy) (1a) and {Fe(4-CNpy)2[Au(CN)2]2}-{Fe(H2O)2[Au(CN)2]2} (1b), present quite different supramolecular networks that show different magnetic behaviors. Compound 1a crystallizes in the centrosymmetric space group Pbcn. The asymmetric unit contains two 4-CNpy, one type of Fe2+, and two types of crystallographically distinct [Au(CN)2] units which form Hofmann-like two dimensional layer structures with guest spaces. The layers are combined with another layer by strong gold-gold intermetalic interactions. Compound 1b crystallizes in the centrosymmetric space group Pnma. The bent bismonodentate [AuI(CN)2] units and FeII ions form a complicated interpenetrated three dimensional structure. In addition, 1b exhibits ferromagnetic interaction. View Full-Text
Keywords: coordination polymer; supramolecular isomerism; spin crossover; crystal engineering coordination polymer; supramolecular isomerism; spin crossover; crystal engineering
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MDPI and ACS Style

Kosone, T.; Tomori, I.; Akahoshi, D.; Saito, T.; Kitazawa, T. New Iron(II) Spin Crossover Complexes with Unique Supramolecular Networks Assembled by Hydrogen Bonding and Intermetallic Bonding. Crystals 2018, 8, 415. https://doi.org/10.3390/cryst8110415

AMA Style

Kosone T, Tomori I, Akahoshi D, Saito T, Kitazawa T. New Iron(II) Spin Crossover Complexes with Unique Supramolecular Networks Assembled by Hydrogen Bonding and Intermetallic Bonding. Crystals. 2018; 8(11):415. https://doi.org/10.3390/cryst8110415

Chicago/Turabian Style

Kosone, Takashi; Tomori, Itaru; Akahoshi, Daisuke; Saito, Toshiaki; Kitazawa, Takafumi. 2018. "New Iron(II) Spin Crossover Complexes with Unique Supramolecular Networks Assembled by Hydrogen Bonding and Intermetallic Bonding" Crystals 8, no. 11: 415. https://doi.org/10.3390/cryst8110415

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