Catalytic Activity of Histidine-Metal Complexes in Oxidation Reactions

Vassilev, Krassimir; Dimitrova, Marina; Turmanova, Sevdalina; Milina, R.

doi:10.1080/15533174.2012.740713

Cited by 12 publications

(6 citation statements)

References 29 publications

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“…Metal complexes of histidine may exhibit catalytic activity, especially with molybdenum, in oxidation reactions, as was shown by Vassilev et al [55]. Due to the catalytic properties of Zn-his complexes, their possible application as catalysts was investigated [56].…”

Section: Resultsmentioning

confidence: 99%

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Behaviour of Zinc Complexes and Zinc Sulphide Nanoparticles Revealed by Using Screen Printed Electrodes and Spectrometry

Nejdl

Ruttkay-Nedecký

Kudr

et al. 2013

Sensors

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In this study, we focused on microfluidic electrochemical analysis of zinc complexes (Zn(phen)(his)Cl2, Zn(his)Cl2) and ZnS quantum dots (QDs) using printed electrodes. This method was chosen due to the simple (easy to use) instrumentation and variable setting of flows. Reduction signals of zinc under the strictly defined and controlled conditions (pH, temperature, flow rate, accumulation time and applied potential) were studied. We showed that the increasing concentration of the complexes (Zn(phen)(his)Cl2, Zn(his)Cl2) led to a decrease in the electrochemical signal and a significant shift of the potential to more positive values. The most likely explanation of this result is that zinc is strongly bound in the complex and its distribution on the electrode is very limited. Changing the pH from 3.5 to 5.5 resulted in a significant intensification of the Zn(II) reduction signal. The complexes were also characterized by UV/VIS spectrophotometry, chromatography, and ESI-QTOF mass spectrometry.

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Section: Resultsmentioning

confidence: 99%

“…Because the investigated complex contains the amino acid histidine, it was investigated using an automated amino acids analyser. L-Histidine (his) is an essential amino acid involved in the chelation of metal ions [ 55 , 56 ]. The chromatogram of the complex was compared with the chromatogram of a histidine standard.…”

Section: Resultsmentioning

confidence: 99%

Behaviour of Zinc Complexes and Zinc Sulphide Nanoparticles Revealed by Using Screen Printed Electrodes and Spectrometry

Nejdl

Ruttkay-Nedecký

Kudr

et al. 2013

Sensors

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“…The Ni (II) ions present in the system can result in the formation of two types of metal complexes (His-Ni and His-Ni-His), [19,24,25] as it was confirmed by a combination of potentiometric titrations and spectroscopic (ultraviolet-visible [UV-vis] and circular dichroism) methods. [2,13,[21][22][23][26][27][28] In addition, new methods have also appeared in the last few decades that can be used to detect possible His-Ni binding sites. An example is an interferometric technique that works on the optical principle, which enables the detection of bonds between ions and proteins, and the number and strength of binding sites can be determined, and rate constants can also be calculated.…”

Section: Introductionmentioning

confidence: 99%

Identification of histidine‐Ni (II) metal complex by Raman spectroscopy

Pál

Vereš

Holomb

et al. 2022

J Raman Spectroscopy

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Metal ions such as nickel have a strong binding affinity to amino acids and form metal complexes of different geometry. This complex formation is influenced by many factors among others the kind of reactants and their relative concentrations, pH, and its effect on the net charge of the amino acid molecule. In this work, the formation of the histidine‐nickel (II) complex in different conditions was examined by Raman spectroscopy. In addition to the experiments, density functional theory (DFT) calculations on histidine‐nickel complexes were performed in order to elucidate the complex formation mechanism and optimal geometry of the structures as well as to investigate their vibrational properties. The Raman measurements showed double peaks at 1272 and 1297 cm−1, and triple peaks at 1322, 1336, and 1355 cm−1 that belong to the metal complex. The geometry optimizations and total energy calculations of His‐Ni (II) complex revealed that the octahedral geometry and the triplet spin state of Ni ion is the energetically favorable structure. This metal complex is formed through the nitrogen atom of the imidazole side chain, the nitrogen atom of the terminal amino group, and the oxygen atom of the carboxyl group. Experiments with pH revealed that the alkaline pH favors while the change of the concentration of the metal ions does not affect the the His‐Ni (II) complex formation.

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“…Amino acids are the basic building blocks of proteins and contribute in all major processes in organisms . Many researchers have tried to design catalysts that match the properties and performance of an enzyme .…”

Section: Introductionmentioning

confidence: 99%

Fe₃O₄@Propylsilane@Histidine[HSO₄^‐] magnetic nanocatalysts: Synthesis, characterization and catalytic application for highly efficient synthesis of xanthene derivatives

Mousavifar

Kefayati

Shariati

2018

Applied Organom Chemis

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The surface of Fe 3 O 4 magnetic nanoparticles (MNPs) was modified by chloropropylsilane and histidine. The imidazole group of prepared Fe 3 O 4 @Propylsilane@Histidine MNPs converted to imidazolium hydrogen sulfate group and Fe 3 O 4 @Propylsilane@Histidine [HSO 4 -] as a novel environmentally friendly ionic liquid/ magnetite nanoparticle was prepared, successfully. FT-IR, XRD, SEM and TEM instruments was used to identifiy the histidine ionic liquids/magnetite nanoparticles (HILMNPs). The catalytic activity of synthesized HILMNPs was appraised for the synthesis of 9-aryl-1,8dioxooctahydroxanthene and spiro[indoline-3,9′-xanthene]trione derivatives.The activity of HILMNPs was much better than the other reported heterogeneous and homogeneous catalysts. Furthermore, the prepared catalyst could be separated from the reaction mixture and reused four times without any significant loss in its activity.

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Catalytic Activity of Histidine-Metal Complexes in Oxidation Reactions

Cited by 12 publications

References 29 publications

Behaviour of Zinc Complexes and Zinc Sulphide Nanoparticles Revealed by Using Screen Printed Electrodes and Spectrometry

Behaviour of Zinc Complexes and Zinc Sulphide Nanoparticles Revealed by Using Screen Printed Electrodes and Spectrometry

Identification of histidine‐Ni (II) metal complex by Raman spectroscopy

Fe₃O₄@Propylsilane@Histidine[HSO₄^‐] magnetic nanocatalysts: Synthesis, characterization and catalytic application for highly efficient synthesis of xanthene derivatives

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Catalytic Activity of Histidine-Metal Complexes in Oxidation Reactions

Cited by 12 publications

References 29 publications

Behaviour of Zinc Complexes and Zinc Sulphide Nanoparticles Revealed by Using Screen Printed Electrodes and Spectrometry

Behaviour of Zinc Complexes and Zinc Sulphide Nanoparticles Revealed by Using Screen Printed Electrodes and Spectrometry

Identification of histidine‐Ni (II) metal complex by Raman spectroscopy

Fe3O4@Propylsilane@Histidine[HSO4‐] magnetic nanocatalysts: Synthesis, characterization and catalytic application for highly efficient synthesis of xanthene derivatives

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Fe₃O₄@Propylsilane@Histidine[HSO₄^‐] magnetic nanocatalysts: Synthesis, characterization and catalytic application for highly efficient synthesis of xanthene derivatives