Dalton Trans., 2020,49, 15339-15354, http://dx.doi.org/10.1039/d0dt03298k Chelated Fischer carbene complexes of annulated thiophenes : synthesis, structure and electrochemistry |
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Author: | Lamprecht, Zandria1; Malan, Frederick P.1; Fernández, Israel2; |
Organizations: |
1Department of Chemistry, University of Pretoria, Private Bag X20, Hatfield 0028, Pretoria, South Africa 2Departamento de Química Orgánica I and Centro de Innovación en Química Avanzada (ORFEO-CINQA), Facultad de Ciencias Químicas, Universidad Complutense de Madrid, Madrid, Spain 3Laboratory of Inorganic Chemistry, Environmental and Chemical Engineering, University of Oulu, P. O. Box 3000, 90014 Oulu, Finland |
Format: | article |
Version: | published version |
Access: | open |
Online Access: | PDF Full Text (PDF, 3.4 MB) |
Persistent link: | http://urn.fi/urn:nbn:fi-fe2020112592972 |
Language: | English |
Published: |
Royal Society of Chemistry,
2020
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Publish Date: | 2020-11-25 |
Description: |
AbstractTwo (thieno[3,2-b]thiophene) and three annulated thiophenes (dithieno[2,3-b;3′,2′-d]thiophene and dithieno[3,2-b;2′,3′-d]thiophene) were employed as building blocks to synthesize linear or semi-circular chelated mononuclear biscarbene and dinuclear tetracarbene complexes. The electronic properties of the annulated thienylene chelated carbene complexes were investigated by cyclic voltammetry experiments and compared to non-chelated Fischer-type monocarbene complexes. Density functional theory (DFT) calculations were used to assign the redox events and to probe the extent of electron delocalisation as well as the possibility of electronic (intramolecular metal–metal) communication as a result of intervalence. The differences of these electronic properties in the conjugated chelated carbene complexes are compared to chelated carbene compounds without a linear conjugated pathway. see all
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Series: |
Dalton transactions |
ISSN: | 1477-9226 |
ISSN-E: | 1477-9234 |
ISSN-L: | 1477-9226 |
Volume: | 49 |
Issue: | 43 |
Pages: | 15339 - 15354 |
DOI: | 10.1039/d0dt03298k |
OADOI: | https://oadoi.org/10.1039/d0dt03298k |
Type of Publication: |
A1 Journal article – refereed |
Field of Science: |
116 Chemical sciences |
Subjects: | |
Funding: |
The authors gratefully acknowledge the National Research Foundation, South Africa (NRF 105740; NRF 105529, NRF 87788 and NRF 9772) and Sasol Technology R&D Pty. Ltd. (South Africa) for financial support. I. F. acknowledges support from the Spanish MINECO (CTQ2016-78205-P, CTQ2016-81797-REDC and PID2019-106184GB-I00). |
Copyright information: |
© The Royal Society of Chemistry 2020. This article is licensed under a Creative Commons Attribution 3.0 Unported Licence. |
https://creativecommons.org/licenses/by/3.0/ |