High-pressure single-crystal XRD and magnetic study of a octacyanoniobate-based magnetic sponge

Bibliographic description

punktacja MNiSW [2012 A]: 35

title:	High-pressure single-crystal XRD and magnetic study of a octacyanoniobate-based magnetic sponge
author:	Pinkowicz Dawid , Kurpiewska Katarzyna , Lewiński Krzysztof , Bałanda Maria, Mihalik Marian, Zentková Maria, Sieklucka Barbara
journal title:	CrystEngComm
volume:	14
issue:	16
date of publication :	2012
pages:	5224-5229
eISSN:	1466-8033
DOI:	10.1039/c2ce25387a
language:	English
journal language:	English
abstract in English:	In the present study we report the structural and magnetic response of the 3-D cyano-bridged magnetic sponge-like system {[Mn II (pydz)(H 2 O) 2 ][Mn II (H 2 O) 2 ][Nb IV (CN) 8 ] ? 3H 2 O} n A to external pressure up to 1.8 GPa using single-crystal crystallography and magnetic measurements. The observed pressure-induced structural changes: shrinkage of the Nb–C bonds and bending of Mn– NC–Nb linkages are responsible for the strengthening of the antiferromagnetic interactions between Mn and Nb centers and consequently for the substantial increase of the magnetic ordering temperature from 43 K to 51 K under 0.57 GPa. The observed magneto-structural response to external pressure is similar in nature to the removal of guest molecules and confirms the significant susceptibility of molecular magnetic sponges to mechanical stress.
departmental parameterization:	35
affiliation:	Wydział Chemii : Zakład Chemii Nieorganicznej, Wydział Chemii : Zakład Krystalochemii i Krystalofizyki
type:	journal article
subtype:	academic paper

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