Incorporation of guanidinium ions in CuII-[MV(CN)8]3− double-layered magnetic systems

Olaf Stefańczyk; Anna M. Majcher; Michał Rams; Wojciech Nitek; Marcin Kozieł; Wiesław Łasocha; Barbara Sieklucka

doi:10.1039/C2DT32397D

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Incorporation of guanidinium ions in Cu^II-[M^V(CN)₈]³⁻ double-layered magnetic systems†

Olaf Stefańczyk,*^a Anna M. Majcher,^b Michał Rams,^b Wojciech Nitek,^a Marcin Kozieł,^a Wiesław Łasocha^a and Barbara Sieklucka*^a

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* Corresponding authors

^a Faculty of Chemistry, Jagiellonian University, Ingardena 3, 30-060 Kraków, Poland
E-mail: barbara.sieklucka@uj.edu.pl

^b M. Smoluchowski Institute of Physics, Jagiellonian University, Reymonta 4, 30-059 Kraków, Poland

Abstract

The incorporation of guanidinium ions (Hgua⁺) in Cu^II–M^V systems results in the formation of two isostructural coordination polymers (Hgua)Cu^II[M^V(CN)₈], M = W (1); Mo (2), which reveal a double-layered structure separated by guanidinium ions. The magnetic measurements reveal long range magnetic ordering with critical temperatures of 32.8 and 27.5 K for 1 and 2, respectively. Moreover, both assemblies exhibit hysteresis loops with coercive fields of 300 Oe for 1 and 50 Oe for 2, and a spin-flip transition around 120 Oe.

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Article information

DOI: https://doi.org/10.1039/C2DT32397D
Article type: Paper
Submitted: 09 Oct 2012
Accepted: 03 Jan 2013
First published: 07 Jan 2013

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Dalton Trans., 2013,42, 5042-5046

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Incorporation of guanidinium ions in Cu^II-[M^V(CN)₈]³⁻ double-layered magnetic systems

O. Stefańczyk, A. M. Majcher, M. Rams, W. Nitek, M. Kozieł, W. Łasocha and B. Sieklucka, Dalton Trans., 2013, 42, 5042 DOI: 10.1039/C2DT32397D

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