Supramolecular heterosynthon assemblies of <i>ortho</i>-phenylenediamine with substituted aromatic carboxylic acids

Mishra, Risha; Raghavaiah, Pallepogu

doi:10.1107/s2052520617014299

Cited by 4 publications

(1 citation statement)

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“…Various results concerning magnetic behavior of nanosized ZnO doped with Fe such as ferromagnetism, the coexistence of paramagnetic, antiferromagnetic, and ferromagnetic contributions, superparamagnetic‐like behavior or spinglass‐like behavior have been reported. The aim of the present work is an investigation of magnetic properties of nanosized ZnO doped with α‐Fe 2 O 3 , in which ZnFe 2 O 4 spinel nanoparticles were formed.…”

Section: Introductionmentioning

confidence: 99%

Mössbauer Effect Study of Superparamagnetic Behavior of ZnFe₂O₄ Nanoparticles Formed in ZnO Doped with Fe₂O₃

Kopcewicz

Grabias

Kuryliszyn‐Kudelska

et al. 2019

Physica Status Solidi (b)

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Superparamagnetic behavior of ZnFe2O4 nanoparticles formed by doping ZnO with various content of α‐Fe2O3 is investigated by 57Fe Mössbauer spectroscopy measurements performed in a temperature range from 300 to 10 K. The nanoparticles were obtained by the hydrothermal synthesis with Fe2O3 doping ranging from 30 to 70 wt.%. The results are compared with the ZnO sample doped with 60% Fe2O3, prepared by the calcination method. At room temperature the Mössbauer spectra of all samples consist of a nonmagnetic component characteristic for Fe3+ ions in ZnFe2O4 spinel structure. Low temperature Mössbauer measurements of hydrothermally synthesized nanoparticles reveal appearance of a magnetically ordered spectral component at about 120 K for the sample doped with 70% Fe2O3 and below 30 K for all other compositions. The spectral contribution of the magnetic component increases gradually at decreasing temperature at the expense of the nonmagnetic component, indicating superparamagnetic relaxation of ZnFe2O4 nanoparticles. It is concluded that the spinel nanoparticles are significantly smaller in the samples obtained by the hydrothermal method than by the calcination one. The blocking temperature is found to decrease with decreasing content of Fe2O3 doping during preparation of the nanoparticles.

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Section: Introductionmentioning

confidence: 99%

Mössbauer Effect Study of Superparamagnetic Behavior of ZnFe₂O₄ Nanoparticles Formed in ZnO Doped with Fe₂O₃

Kopcewicz

Grabias

Kuryliszyn‐Kudelska

et al. 2019

Physica Status Solidi (b)

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Structure determination and Hirshfeld surface analysis of new cocrystal and salt forms of 5-aminotetrazole with hydroxy- and nitro-substituted carboxylic acids

et al. 2022

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Two new crystalline solids, namely, 5-aminotetrazole–3,5-dihydroxybenzoic acid–water (1/4/6), CH3N5·4C7H6O4·6H2O (I), and 5-aminotetrazolium 3,5-dinitrosalicylate, CH4N5 +·C7H3N2O7 − (II), have been synthesized and characterized by single-crystal X-ray diffraction and Hirshfeld surface analysis. The crystal packing arrangements of I and II are governed by N—H...O and O—H...O hydrogen-bonding interactions. In cocrystal I, adjacent acid molecules are linked through O—H...O hydrogen bonds, forming a dimer with an R 2 2(8) motif. In salt II, the tetrazolium cation and acid anion are linked through N—H...O hydrogen bonds to also form a dimer with an R 2 2(8) motif. Further N—H...O and O—H...O hydrogen bonds help to stabilize the crystal packing, along with aromatic π–π stacking interactions in I and carbonyl...π interactions in II. The Hirshfeld surface analysis and fingerprint plots reveal that O...H/H...O interactions contribute 34.4% of the total interactions in the crystal packing of cocrystal I and 36.7% in salt II.

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Benzene-1,2-diaminium bis(4-methylbenzene-1-sulfonate)

Narvekar

Srinivasan

2020

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Supramolecular heterosynthon assemblies of ortho-phenylenediamine with substituted aromatic carboxylic acids

Abstract: Edited by E. V. Boldyreva, Russian Academy of Sciences, Russia Dedicated to Professor N. S. Gajbhiye (IIT, Kanpur) on the occasion of his 65th birthday.

Cited by 4 publications

References 34 publications

Mössbauer Effect Study of Superparamagnetic Behavior of ZnFe₂O₄ Nanoparticles Formed in ZnO Doped with Fe₂O₃

Mössbauer Effect Study of Superparamagnetic Behavior of ZnFe₂O₄ Nanoparticles Formed in ZnO Doped with Fe₂O₃

Structure determination and Hirshfeld surface analysis of new cocrystal and salt forms of 5-aminotetrazole with hydroxy- and nitro-substituted carboxylic acids

Benzene-1,2-diaminium bis(4-methylbenzene-1-sulfonate)

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Supramolecular heterosynthon assemblies of ortho-phenylenediamine with substituted aromatic carboxylic acids

Abstract: Edited by E. V. Boldyreva, Russian Academy of Sciences, Russia Dedicated to Professor N. S. Gajbhiye (IIT, Kanpur) on the occasion of his 65th birthday.

Cited by 4 publications

References 34 publications

Mössbauer Effect Study of Superparamagnetic Behavior of ZnFe2O4 Nanoparticles Formed in ZnO Doped with Fe2O3

Mössbauer Effect Study of Superparamagnetic Behavior of ZnFe2O4 Nanoparticles Formed in ZnO Doped with Fe2O3

Structure determination and Hirshfeld surface analysis of new cocrystal and salt forms of 5-aminotetrazole with hydroxy- and nitro-substituted carboxylic acids

Benzene-1,2-diaminium bis(4-methylbenzene-1-sulfonate)

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Mössbauer Effect Study of Superparamagnetic Behavior of ZnFe₂O₄ Nanoparticles Formed in ZnO Doped with Fe₂O₃

Mössbauer Effect Study of Superparamagnetic Behavior of ZnFe₂O₄ Nanoparticles Formed in ZnO Doped with Fe₂O₃