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Labella J, Durán-Sampedro G, Krishna S, Martínez-Díaz MV, Guldi DM, Torres T. Anthracene-Fused Oligo-BODIPYs: A New Class of π-Extended NIR-Absorbing Materials. Angew Chem Int Ed Engl 2023; 62:e202214543. [PMID: 36350769 PMCID: PMC10107270 DOI: 10.1002/anie.202214543] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2022] [Revised: 11/08/2022] [Accepted: 11/09/2022] [Indexed: 11/11/2022]
Abstract
Large π-conjugated systems are key in the area of molecular materials. Herein, we prepare via AuI -catalyzed cyclization a series of fully π-conjugated anthracene-fused oligo-BODIPYs. Their structural and optoelectronic properties were studied by several techniques, ranging from X-ray, UV/Vis, and cyclic voltammetry to transient absorption spectroscopy. As a complement, their electronic structures were explored by means of Density Functional Theory (DFT) calculations. Depending on the size and shape of the π-conjugated skeleton, unique features-such as face-to-face supramolecular organization, NIR absorption and fluorescence as well as strong electron accepting character-were noted. All in all, the aforementioned features render them valuable for technological applications.
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Affiliation(s)
- Jorge Labella
- Department of Organic Chemistry, Universidad Autónoma de Madrid, Campus de Cantoblanco, C/Francisco Tomás y Valiente 7, 28049, Madrid, Spain
| | - Gonzalo Durán-Sampedro
- Department of Organic Chemistry, Universidad Autónoma de Madrid, Campus de Cantoblanco, C/Francisco Tomás y Valiente 7, 28049, Madrid, Spain.,Institute for Advanced Research in Chemical Sciences (IAdChem), Universidad Autónoma de Madrid, 28049, Madrid, Spain
| | - Swathi Krishna
- Department of Chemistry and Pharmacy, Interdisciplinary Center for Molecular Materials (ICMM), Friedrich-Alexander-Universität Erlangen-Nürnberg, Egerlandstr. 3, 91058, Erlangen, Germany
| | - M Victoria Martínez-Díaz
- Department of Organic Chemistry, Universidad Autónoma de Madrid, Campus de Cantoblanco, C/Francisco Tomás y Valiente 7, 28049, Madrid, Spain.,Institute for Advanced Research in Chemical Sciences (IAdChem), Universidad Autónoma de Madrid, 28049, Madrid, Spain
| | - Dirk M Guldi
- Department of Chemistry and Pharmacy, Interdisciplinary Center for Molecular Materials (ICMM), Friedrich-Alexander-Universität Erlangen-Nürnberg, Egerlandstr. 3, 91058, Erlangen, Germany
| | - Tomás Torres
- Department of Organic Chemistry, Universidad Autónoma de Madrid, Campus de Cantoblanco, C/Francisco Tomás y Valiente 7, 28049, Madrid, Spain.,Institute for Advanced Research in Chemical Sciences (IAdChem), Universidad Autónoma de Madrid, 28049, Madrid, Spain.,IMDEA-Nanociencia, C/Faraday 9, Campus de Cantoblanco, 28049, Madrid, Spain
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Baranowski D, Cojocariu I, Sala A, Africh C, Comelli G, Schio L, Tormen M, Floreano L, Feyer V, Schneider CM. Conservation of Nickel Ion Single-Active Site Character in a Bottom-Up Constructed π-Conjugated Molecular Network. Angew Chem Int Ed Engl 2022; 61:e202210326. [PMID: 36070193 PMCID: PMC9827996 DOI: 10.1002/anie.202210326] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2022] [Indexed: 01/12/2023]
Abstract
On-surface chemistry holds the potential for ultimate miniaturization of functional devices. Porphyrins are promising building-blocks in exploring advanced nanoarchitecture concepts. More stable molecular materials of practical interest with improved charge transfer properties can be achieved by covalently interconnecting molecular units. On-surface synthesis allows to construct extended covalent nanostructures at interfaces not conventionally available. Here, we address the synthesis and properties of covalent molecular network composed of interconnected constituents derived from halogenated nickel tetraphenylporphyrin on Au(111). We report that the π-extended two-dimensional material exhibits dispersive electronic features. Concomitantly, the functional Ni cores retain the same single-active site character of their single-molecule counterparts. This opens new pathways when exploiting the high robustness of transition metal cores provided by bottom-up constructed covalent nanomeshes.
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Affiliation(s)
- Daniel Baranowski
- Peter Grünberg Institute (PGI-6)Jülich Research Center52428JülichGermany
| | - Iulia Cojocariu
- Peter Grünberg Institute (PGI-6)Jülich Research Center52428JülichGermany
| | | | | | - Giovanni Comelli
- TASC LaboratoryCNR-IOM34149TriesteItaly
- Department of PhysicsUniversity of Trieste34127TriesteItaly
| | | | | | | | - Vitaliy Feyer
- Peter Grünberg Institute (PGI-6)Jülich Research Center52428JülichGermany
- Faculty of Physics and Center for Nanointegration Duisburg-Essen (CENIDE)University of Duisburg-Essen47048DuisburgGermany
| | - Claus M. Schneider
- Peter Grünberg Institute (PGI-6)Jülich Research Center52428JülichGermany
- Faculty of Physics and Center for Nanointegration Duisburg-Essen (CENIDE)University of Duisburg-Essen47048DuisburgGermany
- Department of Physics and AstronomyUC DavisDavisCA 95616USA
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3
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Baranowski D, Cojocariu I, Sala A, Africh C, Comelli G, Schio L, Tormen M, Floreano L, Feyer V, Schneider CM. Conservation of Nickel Ion Single‐Active Site Character in a Bottom‐Up Constructed π‐Conjugated Molecular Network. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202210326] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Daniel Baranowski
- Forschungszentrum Jülich GmbH: Forschungszentrum Julich GmbH PGI-6 GERMANY
| | - Iulia Cojocariu
- Forschungszentrum Jülich GmbH: Forschungszentrum Julich GmbH PGI-6 GERMANY
| | | | | | - Giovanni Comelli
- University of Trieste: Universita degli Studi di Trieste Physics ITALY
| | | | | | | | - Vitaliy Feyer
- Forschungszentrum Julich GmbH Leo brand strasse GERMANY
| | - Claus M. Schneider
- Forschungszentrum Jülich: Forschungszentrum Julich GmbH PGI-6 Leo-Brandt-Straße 52425 Jülich GERMANY
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