Experimental study of Cu(en)(H2O)2SO4 embedded into mesoporous silica matrix SBA-15 with the hexagonal arrangement of pores

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60461373%3A22310%2F23%3A43934034" target="_blank" >RIV/60461373:22310/23:43934034 - isvavai.cz</a>

Result on the web

<a href="https://doi.org/10.1016/j.jmmm.2023.171396" target="_blank" >https://doi.org/10.1016/j.jmmm.2023.171396</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.jmmm.2023.171396" target="_blank" >10.1016/j.jmmm.2023.171396</a>

Result language

angličtina

Original language name

Experimental study of Cu(en)(H2O)2SO4 embedded into mesoporous silica matrix SBA-15 with the hexagonal arrangement of pores

Original language description

In this work, we present an experimental study to find the optimal way of encapsulation of the magnetic quasi-two-dimensional system Cu(en)(H2O)2SO4 (en = ethylenediamine = C2H8N2) in mesoporous silica SBA-15 with hexagonal pore morphology with a pore size of 5 nm. Our main goal is to achieve the most significant possible degree of pore filling and to study the effect of encapsulation of complex Cu(en)(H2O)2SO4 in SBA-15 silica on the magnetic properties of the studied complex by means of electron paramagnetic resonance (EPR) and magnetization measurements. It was found that the adsorption equilibrium during the adsorption of the Cu(en)(H2O)2SO4 complex from the solution to SBA-15 was reached after only 24 h, and the samples prepared by adsorption for a longer time (72 h, 14 days) did not show an increased amount of the loaded complex. The degree of pore filling represents around 60 % of the total volume of internal pores. The analysis of temperature dependence of susceptibility, the field dependence of magnetization, and EPR spectra showed that due to the encapsulation of Cu(en)(H2O)2SO4 complex in mesoporous silica, the magnetic correlations between Cu(II) ions are significantly weakened, yielding paramagnetic behavior in the studied system. © 2023 Elsevier B.V.

Czech name

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Czech description

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Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

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OECD FORD branch

20501 - Materials engineering

Project

<a href="/en/project/GA21-02550S" target="_blank" >GA21-02550S: Plasmon induced excited spin state trapping in spin-crossover complexes</a><br>

Continuities

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year

2023

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS

ISSN

0304-8853

e-ISSN

—

Volume of the periodical

588

Issue of the periodical within the volume

DEC 15 2023

Country of publishing house

NL - THE KINGDOM OF THE NETHERLANDS

Number of pages

6

Pages from-to

"171396/1"-6

UT code for WoS article

001149874400001

EID of the result in the Scopus database

2-s2.0-85174627688