The efficient synthesis of bispyrazole derivatives was reported in the presence of Fe3O4@SiO2@Si-Pr-NH-(CH2)2-NH2 as a nanomagnetic catalyst in solvent-free conditions. The UV–Vis spectroscopy study of 4,4'-((3-nitrophenyl)methylene)bis(3-methyl-1H-pyrazol-5-ol) derivative 6a was demonstrated that it could be used as a Fe3+ ion colorimetric chemosensor, which was shown an apparent color change from white to orange with high selectivity toward the addition of Fe3+ ion in CH3CN/H2O (1:9 v/v) as a solvent. The UV–Vis absorption was increased linearly, and its detection limit was calculated 2.19 × 10−6 M.
The orientations of hydroxyl groups for 5-membered and 6-membered rings of the most stable configurations of the bispyrazoles cause generation of T-shaped conformations based on Independent Gradient Model (IGM) analysis, conformational stability of the considered complexes can be related to …
%0 Journal Article
%1 2022
%A Ziarani, Ghodsi Mohammadi
%A Javadi, Fatemeh
%A Mohajer, Fatemeh
%A Anafcheh, Maryam
%A Badiei, Alireza
%A Ghasemi, Jahan B.
%D 2022
%I Elsevier BV
%J Materials Chemistry and Physics
%K A DFT Fe3+ Fe3O4@SiO2@Si-Pr-NH-(CH2)2-NH2 and bispyrazole colorimetric derivative its myown new nitrophenyl sensor: study synthesis using
%P 125285
%R 10.1016/j.matchemphys.2021.125285
%T A new Fe3$\mathplus$ colorimetric sensor: Nitrophenyl bispyrazole derivative synthesis using Fe3O4@SiO2@Si-Pr-NH-(CH2)2-NH2 and its DFT study
%U https://doi.org/10.1016%2Fj.matchemphys.2021.125285
%V 275
%X The efficient synthesis of bispyrazole derivatives was reported in the presence of Fe3O4@SiO2@Si-Pr-NH-(CH2)2-NH2 as a nanomagnetic catalyst in solvent-free conditions. The UV–Vis spectroscopy study of 4,4'-((3-nitrophenyl)methylene)bis(3-methyl-1H-pyrazol-5-ol) derivative 6a was demonstrated that it could be used as a Fe3+ ion colorimetric chemosensor, which was shown an apparent color change from white to orange with high selectivity toward the addition of Fe3+ ion in CH3CN/H2O (1:9 v/v) as a solvent. The UV–Vis absorption was increased linearly, and its detection limit was calculated 2.19 × 10−6 M.
The orientations of hydroxyl groups for 5-membered and 6-membered rings of the most stable configurations of the bispyrazoles cause generation of T-shaped conformations based on Independent Gradient Model (IGM) analysis, conformational stability of the considered complexes can be related to …
@article{2022,
abstract = {The efficient synthesis of bispyrazole derivatives was reported in the presence of Fe3O4@SiO2@Si-Pr-NH-(CH2)2-NH2 as a nanomagnetic catalyst in solvent-free conditions. The UV–Vis spectroscopy study of 4,4'-((3-nitrophenyl)methylene)bis(3-methyl-1H-pyrazol-5-ol) derivative 6a was demonstrated that it could be used as a Fe3+ ion colorimetric chemosensor, which was shown an apparent color change from white to orange with high selectivity toward the addition of Fe3+ ion in CH3CN/H2O (1:9 v/v) as a solvent. The UV–Vis absorption was increased linearly, and its detection limit was calculated 2.19 × 10−6 M.
The orientations of hydroxyl groups for 5-membered and 6-membered rings of the most stable configurations of the bispyrazoles cause generation of T-shaped conformations based on Independent Gradient Model (IGM) analysis, conformational stability of the considered complexes can be related to …},
added-at = {2021-11-10T18:48:28.000+0100},
author = {Ziarani, Ghodsi Mohammadi and Javadi, Fatemeh and Mohajer, Fatemeh and Anafcheh, Maryam and Badiei, Alireza and Ghasemi, Jahan B.},
biburl = {https://www.bibsonomy.org/bibtex/2187bcc07438ba850c06a300075f0f342/fatemehmohajer},
doi = {10.1016/j.matchemphys.2021.125285},
interhash = {323f29d853fe4584602a15283dc2827b},
intrahash = {187bcc07438ba850c06a300075f0f342},
journal = {Materials Chemistry and Physics},
keywords = {A DFT Fe3+ Fe3O4@SiO2@Si-Pr-NH-(CH2)2-NH2 and bispyrazole colorimetric derivative its myown new nitrophenyl sensor: study synthesis using},
month = jan,
pages = 125285,
publisher = {Elsevier {BV}},
timestamp = {2021-11-10T18:48:28.000+0100},
title = {A new Fe3$\mathplus$ colorimetric sensor: Nitrophenyl bispyrazole derivative synthesis using Fe3O4@{SiO}2@Si-Pr-{NH}-({CH}2)2-{NH}2 and its {DFT} study},
url = {https://doi.org/10.1016%2Fj.matchemphys.2021.125285},
volume = 275,
year = 2022
}