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Synthesis and Reaction Mechanisms of Organometallic Compounds

A special issue of Molecules (ISSN 1420-3049). This special issue belongs to the section "Organometallic Chemistry".

Deadline for manuscript submissions: closed (30 November 2023) | Viewed by 3486

Special Issue Editor


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Guest Editor
Department of Chemistry, Universidad de Guanajuato, Guanajuato 36000, Mexico
Interests: organometallic chemistry; catalytic cycles; reaction mechanisms; block-p chemistry; computational chemistry
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

The discovery of new reactivity and the development of more efficient reactions rely heavily on understanding the mechanism of the known transformations. Deciphering how each step takes place and untangling the mechanistic subtleties of a catalytic reaction are key for the rational design of ligands, catalysts and appropriate reaction conditions for optimal results. Based on the collected evidence, mechanistic proposals are inferred, which are always the subject of revision if new experiments are inconsistent with them. This type of research is intellectually exciting and rewarding and perhaps sometimes frustrating. The variety of mechanisms that can operate in reactions that involve metals, especially transition metals, in organometallic catalysis makes mechanistic studies on these systems even more important. In these cases, it is more difficult and risky to establish a reaction pathway based only on former knowledge, because a change in metal, coordination environment and reaction conditions can diverge the reaction to a different route. Computational chemistry plays an essential role in the study of reaction mechanisms. State-of-the-art methods are now quite powerful and capable of modeling reactions introducing the complexity of the catalyst ligand framework and the reaction media, including explicit solvent molecules.

This Special Issue welcomes contributions, original research or review articles on all aspects related to the synthesis, characterization and reaction mechanisms of organometallic compounds. This Special Issue will include research articles on transition metal compounds using various synthetic techniques, chemical analyses and simulation methods, as well as the potential application.

Prof. Dr. Jose Oscar C. Jiménez-Halla
Guest Editor

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Molecules is an international peer-reviewed open access semimonthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2700 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • organometallic chemistry
  • preparation methods
  • reaction mechanisms
  • coordination chemistry

Published Papers (2 papers)

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Research

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12 pages, 2295 KiB  
Article
Catalytic Degradation of Triphenylmethane Dyes with an Iron Porphyrin Complex as a Cytochrome P450 Model
by Xiaoyan Lu, Qiman Che, Xinkai Niu, Yilin Zhang, Yu’e Chen, Qing Han, Miaoqing Li, Shuang Wang and Jihong Lan
Molecules 2023, 28(14), 5401; https://doi.org/10.3390/molecules28145401 - 14 Jul 2023
Cited by 2 | Viewed by 1167
Abstract
The organic dyes used in printing and dyeing wastewater have complex components, diverse structures and strong chemical stability, which make them not suitable for treatment and difficult to degrade in the environment. Porphyrins are macromolecules with 18 π electrons formed by four pyrrole [...] Read more.
The organic dyes used in printing and dyeing wastewater have complex components, diverse structures and strong chemical stability, which make them not suitable for treatment and difficult to degrade in the environment. Porphyrins are macromolecules with 18 π electrons formed by four pyrrole molecules connected with a methylene bridge that has a stable structure. Porphyrin combines with iron to form an active intermediate with a structure similar to the cytochrome P450 enzyme, so they are widely used in the biomimetic field. In the current study, 5,10,15,20-tetra (4-carboxyphenyl) porphine ferric chloride (III) (Fe(III)TCPP) was used as a catalyst and iodosobenzene was used as an oxidant to explore the catalytic degradation of triphenylmethane dyes, such as rhodamine B (RhB) and malachite green (MG). The results of UV-Vis spectral analysis have shown that the conversion rate of the rhodamine B was over 90% when the amount of Fe(III)TCPP was 0.027 mM and the amount of iodosobenzene was eight equivalents. When the catalyst was 0.00681 mM and the amount of the oxidant was five equivalents, the conversion rate of the malachite green reached over 95%. This work provides a feasible method for the degradation of triphenylmethane dyes. Full article
(This article belongs to the Special Issue Synthesis and Reaction Mechanisms of Organometallic Compounds)
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Review

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47 pages, 18660 KiB  
Review
The Dimerization and Oligomerization of Alkenes Catalyzed with Transition Metal Complexes: Catalytic Systems and Reaction Mechanisms
by Lyudmila V. Parfenova, Almira Kh. Bikmeeva, Pavel V. Kovyazin and Leonard M. Khalilov
Molecules 2024, 29(2), 502; https://doi.org/10.3390/molecules29020502 - 19 Jan 2024
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Abstract
Dimers and oligomers of alkenes represent a category of compounds that are in great demand in diverse industrial sectors. Among the developing synthetic methods, the catalysis of alkene dimerization and oligomerization using transition metal salts and complexes is of undoubted interest for practical [...] Read more.
Dimers and oligomers of alkenes represent a category of compounds that are in great demand in diverse industrial sectors. Among the developing synthetic methods, the catalysis of alkene dimerization and oligomerization using transition metal salts and complexes is of undoubted interest for practical applications. This approach demonstrates substantial potential, offering not only elevated reaction rates but also precise control over the chemo-, regio-, and stereoselectivity of the reactions. In this review, we discuss the data on catalytic systems for alkene dimerization and oligomerization. Our focus lies in the analysis of how the activity and chemoselectivity of these catalytic systems are influenced by various factors, such as the nature of the transition metal, the ligand environment, the activator, and the substrate structure. Notably, this review particularly discusses reaction mechanisms, encompassing metal complex activation, structural and dynamic features, and the reactivity of hydride intermediates, which serve as potential catalytically active centers in alkene dimerization and oligomerization. Full article
(This article belongs to the Special Issue Synthesis and Reaction Mechanisms of Organometallic Compounds)
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