Next Article in Journal / Special Issue
Control of Spin-Crossover Phenomena in One-Dimensional Triazole-Coordinated Iron(II) Complexes by Means of Functional Counter Ions
Previous Article in Journal / Special Issue
Spin-Singlet Transition in the Magnetic Hybrid Compound from a Spin-Crossover Fe(III) Cation and π-Radical Anion
Article Menu
Issue 3 (September) cover image

Export Article

Open AccessArticle
Inorganics 2017, 5(3), 55; https://doi.org/10.3390/inorganics5030055

Modification of Cooperativity and Critical Temperatures on a Hofmann-Like Template Structure by Modular Substituent

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
Research Center for Spectrochemistry, University of Tokyo, Bunkyo-ku, Tokyo 113-0033, Japan
4
Research Centre for Materials with Integrated Properties, Toho University, 2-2-1 Miyama, Funabashi, Chiba 274-8510, Japan
*
Authors to whom correspondence should be addressed.
Received: 12 July 2017 / Revised: 6 August 2017 / Accepted: 7 August 2017 / Published: 16 August 2017
(This article belongs to the Special Issue Spin-Crossover Complexes)
View Full-Text   |   Download PDF [3608 KB, uploaded 16 August 2017]   |  

Abstract

In a series of Hofmann-like spin crossover complexes, two new compounds, {Fe(3-F-4-Methyl-py)2[Au(CN)2]2} (1) and {Fe(3-Methyl-py)2[Au(CN)2]2} (2) (py = pyridine) are described. The series maintains a uniform 2-dimentional (2-D) layer structure of {Fe[Au(CN)2]2}. The layers are combined with another layer by strong aurophilic interactions, which results in a bilayer structure. Both coordination compounds 1 and 2 at 293 K crystallize in the centrosymmetric space groups P21/c. The asymmetric unit contains two pyridine derivative ligands, one type of Fe2+, and two types of crystallographically distinct [Au(CN)2] units. Compound 1 undergoes a complete two-step spin transition. On the other hand, 2 maintains the characteristic of the high-spin state. The present compounds and other closely related bilayer compounds are compared and discussed in terms of the cooperativity and critical temperature. The bilayer structure is able to be further linked by substituent-substituent contact resulting in 3-dimentional (3-D) network cooperativity. View Full-Text
Keywords: coordination polymer; cooperative interaction; crystal engineering; spin crossover coordination polymer; cooperative interaction; crystal engineering; spin crossover
Figures

Graphical abstract

This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

Supplementary material

SciFeed

Share & Cite This Article

MDPI and ACS Style

Kosone, T.; Kawasaki, T.; Tomori, I.; Okabayashi, J.; Kitazawa, T. Modification of Cooperativity and Critical Temperatures on a Hofmann-Like Template Structure by Modular Substituent. Inorganics 2017, 5, 55.

Show more citation formats Show less citations formats

Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Related Articles

Article Metrics

Article Access Statistics

1

Comments

[Return to top]
Inorganics EISSN 2304-6740 Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert
Back to Top