Magnetocaloric properties of dendrimer complexes of Fe(III) with substituted Schiff base

In dendrimer complexes of iron (III) with Schiff base (three complexes of iron (III) based on azomethine 4,4′-dodecyloxybenzoyloxybenzoyl-4-salicylidene-2-aminopyridine, a significant magnetocaloric effect (MCE) and heat capacity was found the first time. It was found that the magnitude of MCE depen...

Full description

Saved in:
Bibliographic Details
Published in:Liquid crystals 2018-05, Vol.45 (6), p.907-911
Main Authors: Gruzdev, M. S., Korolev, V. V., Ramazanova, A. G., Chervonova, U. V., Balmasova, O. V.
Format: Article
Language:English
Subjects:
Coordination compounds
dendrimer complexes
heat capacity
Imines
Iron
Magnetic induction
magnetic phase transition
Magnetic properties
Magnetocaloric effect
Phase transitions
Schiff base
Specific heat
Temperature
Temperature dependence
thermotropic mesomorphism
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:In dendrimer complexes of iron (III) with Schiff base (three complexes of iron (III) based on azomethine 4,4′-dodecyloxybenzoyloxybenzoyl-4-salicylidene-2-aminopyridine, a significant magnetocaloric effect (MCE) and heat capacity was found the first time. It was found that the magnitude of MCE depends on the nature of the counter-ion of the complex. MCE were measured with a microcalorimeter over the temperature range of 278-320 K and in a magnetic induction of 0-1.0 T. The temperature dependences of the MCE dendrimer complexes of iron (III) with Schiff base were obtained for the first time. For all the samples studied, the existence of extreme temperature dependence of MCE in the range of temperatures 300-350 K, which is possibly the result of the magnetic phase transition, is shown. The correlation between the thermotropic mesomorphism with the magnetic phase transition in complexes has been established.
ISSN:0267-8292
1366-5855
DOI:10.1080/02678292.2017.1397783