Special Issue "New Trends in Scorpionate Catalysts"

A special issue of Catalysts (ISSN 2073-4344).

Deadline for manuscript submissions: closed (15 September 2017)

Special Issue Editor

Guest Editor
Prof. Dr. Luísa Margarida Martins

1. ISEL—Instituto Superior de Engenharia de Lisboa, Rua Conselheiro Emídio Navarro 1, 1959-007 Lisboa, Portugal
2. Coordination Chemistry and Catalysis (CCC), CQE—Centro de Química Estrutural, Instituto Superior Técnico, Universidade de Lisboa, Av. Rovisco Pais, 1049-001 Lisboa, Portugal
Website | E-Mail
Interests: coordination and sustainable chemistry; homogeneous and supported catalysis; nanomaterials and nanocatalysis; electrochemistry

Special Issue Information

Dear Colleagues,

Scorpionate compounds are undoubtedly among the most important N-donor ligands in coordination chemistry and have been extensively used to synthesize main-group and transition metal complexes where the metal coordination sphere could be carefully tailored by changing the number of pyrazolyl groups at the central atom and the substituents thereon.

The “scorpionate” feature, i.e., the interchange between coordination modes of the scorpionate ligands is believed to be the core of the remarkable structural and chemical versatility found for many metal complexes of this kind. It was also found to be essential for their catalytic applications and, therefore, scorpionate metal compounds have been experience a great deal of increasing interest from specialists in catalysis.

This Special Issue is aimed at covering novel, emerging and promising strategies for the development of improved sustainable catalytic processes by using scorpionate compounds as catalysts.

Authors with expertise in this topic are cordially invited to submit their manuscripts to Catalysts. Significant full papers and review articles are very welcome.

Prof. Luísa Margarida Martins
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 papers will be 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. Catalysts is an international peer-reviewed open access monthly 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 1300 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

  • Homogeneous and supported catalysis
  • Catalysis in non-conventional conditions
  • Catalysis in aqueous media
  • Electro- or Photo-catalysis
  • Bio-inspired catalysis
  • Magnetic/functionalized catalysts
  • Catalytic selective oxidations
  • Polymerization
  • Catalytic C-H activation
  • C-C bond formation

Published Papers (3 papers)

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Research

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Open AccessArticle Highly Active and Selective Supported Rhenium Catalysts for Aerobic Oxidation of n-Hexane and n-Heptane
Catalysts 2018, 8(3), 114; https://doi.org/10.3390/catal8030114
Received: 23 December 2017 / Revised: 13 March 2018 / Accepted: 13 March 2018 / Published: 15 March 2018
PDF Full-text (3938 KB) | HTML Full-text | XML Full-text | Supplementary Files
Abstract
A series of derivative C-scorpionate rhenium complexes, i.e., [ReCl2{NNC(O)C6H5}(Hpz)(PPh3)2] (A) (where Hpz is pyrazole), [ReCl2{NNC(O)C6H5}(Hpz)2(PPh3)] (B), [ReClF{NNC(O)C6H
[...] Read more.
A series of derivative C-scorpionate rhenium complexes, i.e., [ReCl2{NNC(O)C6H5}(Hpz)(PPh3)2] (A) (where Hpz is pyrazole), [ReCl2{NNC(O)C6H5}(Hpz)2(PPh3)] (B), [ReClF{NNC(O)C6H5}(Hpz)2(PPh3)] (C), and their precursor [ReOCl3(PPh3)2] (D), immobilized on 3-aminopropyl-functionalized silica have been prepared and used for neat O2 oxidation of n-hexane and n-heptane mainly to the corresponding alcohols and, in lower amounts, ketones. The supported catalyst C, with fluoro- and diazenido-ligands, exhibits the highest activity for both alkanes (overall turnover numbers (TONs) up to 3.8 × 103 and 2.5 × 103, for n-hexane and n-heptane, respectively) and can be reused in consecutive catalytic cycles. Improved conversion was observed after addition of hetero-carboxylate co-catalysts. A free-radical-based mechanism is proposed to explain the product formation. Full article
(This article belongs to the Special Issue New Trends in Scorpionate Catalysts)
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Open AccessFeature PaperArticle New Trendy Magnetic C-Scorpionate Iron Catalyst and Its Performance towards Cyclohexane Oxidation
Catalysts 2018, 8(2), 69; https://doi.org/10.3390/catal8020069
Received: 23 January 2018 / Revised: 3 February 2018 / Accepted: 4 February 2018 / Published: 8 February 2018
Cited by 1 | PDF Full-text (1863 KB) | HTML Full-text | XML Full-text | Supplementary Files
Abstract
For the first time, a magnetic C-scorpionate catalyst was prepared from the iron(II) complex [FeCl23-HC(pz)3}] (pz = pyrazol-1-yl) and ferrite, using the sustainable mechanochemical synthetic procedure. Its catalytic activity for the cyclohexane oxidation with tert-butyl hydroperoxide
[...] Read more.
For the first time, a magnetic C-scorpionate catalyst was prepared from the iron(II) complex [FeCl23-HC(pz)3}] (pz = pyrazol-1-yl) and ferrite, using the sustainable mechanochemical synthetic procedure. Its catalytic activity for the cyclohexane oxidation with tert-butyl hydroperoxide (TBHP) was evaluated in different conditions, namely under microwave irradiation and under the effect of an external magnetic field. The use of such magnetic conditions significantly shifted the catalyst alcohol/ketone selectivity, thus revealing a promising, easy new protocol for tuning selectivity in important catalytic processes. Full article
(This article belongs to the Special Issue New Trends in Scorpionate Catalysts)
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Review

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Open AccessFeature PaperReview C-Homoscorpionate Oxidation Catalysts—Electrochemical and Catalytic Activity
Catalysts 2017, 7(1), 12; https://doi.org/10.3390/catal7010012
Received: 18 November 2016 / Revised: 22 December 2016 / Accepted: 23 December 2016 / Published: 1 January 2017
Cited by 8 | PDF Full-text (2940 KB) | HTML Full-text | XML Full-text
Abstract
A survey of the electrochemical properties of homoscorpionate tris(pyrazol-1-yl)methane complexes is presented. The relationship between structural features and catalytic efficiency toward the oxidative functionalization of inexpensive and abundant raw-materials to added-value products is also addressed. Full article
(This article belongs to the Special Issue New Trends in Scorpionate Catalysts)
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