Kinetic control over the chiral-selectivity in the formation of organometallic polymers on a Ag(110) surface
Abstract Methods to control chiral-selectivity in molecular reactions through external inputs are of importance, both from a fundamental and technological point of view. Here, the self-assembly of prochiral 6,12-dibromochrysene monomers on Ag(110) is studied using scanning tunneling microscopy. Depo...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
| Published: |
Nature Portfolio
2024-03-01
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| Series: | Communications Chemistry |
| Online Access: | https://doi.org/10.1038/s42004-024-01137-y |
| _version_ | 1797275581852680192 |
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| author | R. S. Koen Houtsma Floris van Nyendaal Meike Stöhr |
| author_facet | R. S. Koen Houtsma Floris van Nyendaal Meike Stöhr |
| author_sort | R. S. Koen Houtsma |
| collection | DOAJ |
| description | Abstract Methods to control chiral-selectivity in molecular reactions through external inputs are of importance, both from a fundamental and technological point of view. Here, the self-assembly of prochiral 6,12-dibromochrysene monomers on Ag(110) is studied using scanning tunneling microscopy. Deposition of the monomers on a substrate held at room temperature leads to the formation of 1D achiral organometallic polymers. When the monomers are instead deposited on a substrate held at 373 K, homochiral organometallic polymers consisting of either the left- or right-handed enantiomer are formed. Post-deposition annealing of room temperature deposited samples at >373 K does not transform the achiral 1D organometallic polymers into homochiral ones and thus, does not yield the same final structure as if depositing onto a substrate held at the same elevated temperature. Furthermore, annealing promotes neither the formation of 1D covalently-coupled polymers nor the formation of graphene nanoribbons. Our results identify substrate temperature as an important factor in on-surface chiral synthesis, thereby demonstrating the importance of considering kinetic effects and the decisive role they can play in structure formation. |
| first_indexed | 2024-03-07T15:16:31Z |
| format | Article |
| id | doaj.art-e4a77556c5234b5d8053717c77edab14 |
| institution | Directory Open Access Journal |
| issn | 2399-3669 |
| language | English |
| last_indexed | 2024-03-07T15:16:31Z |
| publishDate | 2024-03-01 |
| publisher | Nature Portfolio |
| record_format | Article |
| series | Communications Chemistry |
| spelling | doaj.art-e4a77556c5234b5d8053717c77edab142024-03-05T17:55:31ZengNature PortfolioCommunications Chemistry2399-36692024-03-01711610.1038/s42004-024-01137-yKinetic control over the chiral-selectivity in the formation of organometallic polymers on a Ag(110) surfaceR. S. Koen Houtsma0Floris van Nyendaal1Meike Stöhr2Zernike Institute for Advanced Materials, University of GroningenZernike Institute for Advanced Materials, University of GroningenZernike Institute for Advanced Materials, University of GroningenAbstract Methods to control chiral-selectivity in molecular reactions through external inputs are of importance, both from a fundamental and technological point of view. Here, the self-assembly of prochiral 6,12-dibromochrysene monomers on Ag(110) is studied using scanning tunneling microscopy. Deposition of the monomers on a substrate held at room temperature leads to the formation of 1D achiral organometallic polymers. When the monomers are instead deposited on a substrate held at 373 K, homochiral organometallic polymers consisting of either the left- or right-handed enantiomer are formed. Post-deposition annealing of room temperature deposited samples at >373 K does not transform the achiral 1D organometallic polymers into homochiral ones and thus, does not yield the same final structure as if depositing onto a substrate held at the same elevated temperature. Furthermore, annealing promotes neither the formation of 1D covalently-coupled polymers nor the formation of graphene nanoribbons. Our results identify substrate temperature as an important factor in on-surface chiral synthesis, thereby demonstrating the importance of considering kinetic effects and the decisive role they can play in structure formation.https://doi.org/10.1038/s42004-024-01137-y |
| spellingShingle | R. S. Koen Houtsma Floris van Nyendaal Meike Stöhr Kinetic control over the chiral-selectivity in the formation of organometallic polymers on a Ag(110) surface Communications Chemistry |
| title | Kinetic control over the chiral-selectivity in the formation of organometallic polymers on a Ag(110) surface |
| title_full | Kinetic control over the chiral-selectivity in the formation of organometallic polymers on a Ag(110) surface |
| title_fullStr | Kinetic control over the chiral-selectivity in the formation of organometallic polymers on a Ag(110) surface |
| title_full_unstemmed | Kinetic control over the chiral-selectivity in the formation of organometallic polymers on a Ag(110) surface |
| title_short | Kinetic control over the chiral-selectivity in the formation of organometallic polymers on a Ag(110) surface |
| title_sort | kinetic control over the chiral selectivity in the formation of organometallic polymers on a ag 110 surface |
| url | https://doi.org/10.1038/s42004-024-01137-y |
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