Issue 16, 2018

Cooperativity in spin crossover materials as ligand's responsibility – investigations of the Fe(ii) – 1,3-bis((1H-tetrazol-1-yl)methyl)bicyclo[1.1.1]pentane system

Abstract

Criteria for a technologically relevant spin crossover (SCO) material include temperature and abruptness. A series of Fe(II) – 1,3-bis((1H-tetrazol-1-yl)methyl)bicyclo[1.1.1]pentane SCO complexes with various anions (BF4, ClO4, and PF6) designed using a structure–property based concept is reported. All complexes feature abrupt SCO-behavior with T1/2 between 170 K and 187 K. These materials demonstrate that without stabilizing the effects of incorporated solvents or a hydrogen bond-network, the observed cooperativity during high-spin–low-spin transition is anion independent and originates only from the rigidity and internal strain of the propellane-moiety in the ligand. Spectroscopy and structural investigations of these materials are supported by quantum chemical calculations.

Graphical abstract: Cooperativity in spin crossover materials as ligand's responsibility – investigations of the Fe(ii) – 1,3-bis((1H-tetrazol-1-yl)methyl)bicyclo[1.1.1]pentane system

Supplementary files

Article information

Article type
Communication
Submitted
28 Feb 2018
Accepted
16 Mar 2018
First published
16 Mar 2018
This article is Open Access
Creative Commons BY-NC license

Dalton Trans., 2018,47, 5553-5557

Cooperativity in spin crossover materials as ligand's responsibility – investigations of the Fe(II) – 1,3-bis((1H-tetrazol-1-yl)methyl)bicyclo[1.1.1]pentane system

C. Knoll, D. Müller, M. Seifried, G. Giester, J. M. Welch, W. Artner, K. Hradil, M. Reissner and P. Weinberger, Dalton Trans., 2018, 47, 5553 DOI: 10.1039/C8DT00781K

This article is licensed under a Creative Commons Attribution-NonCommercial 3.0 Unported Licence. You can use material from this article in other publications, without requesting further permission from the RSC, provided that the correct acknowledgement is given and it is not used for commercial purposes.

To request permission to reproduce material from this article in a commercial publication, please go to the Copyright Clearance Center request page.

If you are an author contributing to an RSC publication, you do not need to request permission provided correct acknowledgement is given.

If you are the author of this article, you do not need to request permission to reproduce figures and diagrams provided correct acknowledgement is given. If you want to reproduce the whole article in a third-party commercial publication (excluding your thesis/dissertation for which permission is not required) please go to the Copyright Clearance Center request page.

Read more about how to correctly acknowledge RSC content.

Social activity

Spotlight

Advertisements