On‐surface synthesis of cumulene‐containing polymers via two‐step dehalogenative homocoupling of dibromomethylene-functionalized tribenzoazulene
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"metadata": {
"is_last": true,
"version": 1,
"title": "On\u2010surface synthesis of cumulene\u2010containing polymers via two\u2010step dehalogenative homocoupling of dibromomethylene-functionalized tribenzoazulene",
"keywords": [
"MARVEL/DD3",
"SNSF",
"ERC",
"CSCS",
"DFG",
"polymers",
"cumulene",
"on surface synthesis",
"ab initio"
],
"description": "The record contains data that support our recent findings in the fabrication of cumulene containing polymers. Cumulene compounds are notoriously difficult to prepare and study because their reactivity increases dramatically with the increasing number of consecutive double bonds. In this respect, the emerging field of on\u2010surface synthesis provides exceptional opportunities because it relies on reactions on clean metal substrates under well\u2010controlled ultrahigh\u2010vacuum conditions. In the work we report the on\u2010surface synthesis of a polymer linked by cumulene\u2010like bonds on a Au(111) surface via sequential thermally activated dehalogenative C\u2212C coupling of a tribenzoazulene precursor equipped with two dibromomethylene groups. The structure and electronic properties of the resulting polymer with cumulene\u2010like pentagon\u2013pentagon and heptagon\u2013heptagon connections have been investigated by means of scanning probe microscopy and spectroscopy methods and X\u2010ray photoelectron spectroscopy, complemented by density functional theory calculations.",
"license": "Creative Commons Attribution 4.0 International",
"references": [
{
"url": "https://onlinelibrary.wiley.com/doi/full/10.1002/anie.202001939",
"type": "Journal reference",
"citation": "J. I. Urgel, M. Di Giovannantonio, K. Eimre, T. G. Lohr, J. Liu, S. Mishra, Q. Sun, A. Kinikar, R. Widmer, S. Stolz, M. Bommert, R. Berger, P. Ruffieux, C. A. Pignedoli, K. M\u00fcllen, X. Feng, R. Fasel, Angew. Chem. Int. Ed. 59, 13281 - 13287 (2020)",
"comment": "Manuscript where the results are discussed",
"doi": "10.1002/anie.202001939"
}
],
"doi": "10.24435/materialscloud:tx-ht",
"conceptrecid": "609",
"publication_date": "Oct 26, 2020, 20:06:38",
"edited_by": 100,
"_oai": {
"id": "oai:materialscloud.org:610"
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"contributors": [
{
"affiliations": [
"Empa \u2013 Swiss Federal Laboratories for Materials Science and Technology, \u00dcberlandstrasse 129, 8600 D\u00fcbendorf, Switzerland"
],
"familyname": "Urgel",
"givennames": "Jos\u00e9 I."
},
{
"affiliations": [
"Empa \u2013 Swiss Federal Laboratories for Materials Science and Technology, \u00dcberlandstrasse 129, 8600 D\u00fcbendorf, Switzerland"
],
"familyname": "Di Giovannantonio",
"givennames": "Marco"
},
{
"affiliations": [
"Empa \u2013 Swiss Federal Laboratories for Materials Science and Technology, \u00dcberlandstrasse 129, 8600 D\u00fcbendorf, Switzerland"
],
"familyname": "Eimre",
"givennames": "Kristjan"
},
{
"affiliations": [
"Center for Advancing Electronics and Department of Chemistry and Food Chemistry, Technical University of Dresden, 01062 Dresden, Germany"
],
"familyname": "Lohr",
"givennames": "Thorsten G."
},
{
"affiliations": [
"Center for Advancing Electronics and Department of Chemistry and Food Chemistry, Technical University of Dresden, 01062 Dresden, Germany"
],
"familyname": "Liu",
"givennames": "Junzhi"
},
{
"affiliations": [
"Empa \u2013 Swiss Federal Laboratories for Materials Science and Technology, \u00dcberlandstrasse 129, 8600 D\u00fcbendorf, Switzerland"
],
"familyname": "Mishra",
"givennames": "Shantanu"
},
{
"affiliations": [
"Empa \u2013 Swiss Federal Laboratories for Materials Science and Technology, \u00dcberlandstrasse 129, 8600 D\u00fcbendorf, Switzerland"
],
"familyname": "Sun",
"givennames": "Qiang"
},
{
"affiliations": [
"Empa \u2013 Swiss Federal Laboratories for Materials Science and Technology, \u00dcberlandstrasse 129, 8600 D\u00fcbendorf, Switzerland"
],
"familyname": "Kinikar",
"givennames": "Amogh"
},
{
"affiliations": [
"Empa \u2013 Swiss Federal Laboratories for Materials Science and Technology, \u00dcberlandstrasse 129, 8600 D\u00fcbendorf, Switzerland"
],
"familyname": "Widmer",
"givennames": "Roland"
},
{
"affiliations": [
"Empa \u2013 Swiss Federal Laboratories for Materials Science and Technology, \u00dcberlandstrasse 129, 8600 D\u00fcbendorf, Switzerland"
],
"familyname": "Stolz",
"givennames": "Samuel"
},
{
"affiliations": [
"Empa \u2013 Swiss Federal Laboratories for Materials Science and Technology, \u00dcberlandstrasse 129, 8600 D\u00fcbendorf, Switzerland"
],
"familyname": "Bommert",
"givennames": "Max"
},
{
"affiliations": [
"Center for Advancing Electronics and Department of Chemistry and Food Chemistry, Technical University of Dresden, 01062 Dresden, Germany"
],
"familyname": "Berger",
"givennames": "Reinhard"
},
{
"affiliations": [
"Empa \u2013 Swiss Federal Laboratories for Materials Science and Technology, \u00dcberlandstrasse 129, 8600 D\u00fcbendorf, Switzerland"
],
"familyname": "Ruffieux",
"givennames": "Pascal"
},
{
"affiliations": [
"Empa \u2013 Swiss Federal Laboratories for Materials Science and Technology, \u00dcberlandstrasse 129, 8600 D\u00fcbendorf, Switzerland"
],
"email": "carlo.pignedoli@empa.ch",
"familyname": "Pignedoli",
"givennames": "Carlo A."
},
{
"affiliations": [
"Max Planck Institute for Polymer Research, Ackermannweg 10, 55128 Mainz, Germany"
],
"familyname": "M\u00fcllen",
"givennames": "Klaus"
},
{
"affiliations": [
"Center for Advancing Electronics and Department of Chemistry and Food Chemistry, Technical University of Dresden, 01062 Dresden, Germany"
],
"familyname": "Feng",
"givennames": "Xinliang"
},
{
"affiliations": [
"Empa \u2013 Swiss Federal Laboratories for Materials Science and Technology, \u00dcberlandstrasse 129, 8600 D\u00fcbendorf, Switzerland",
"Department of Chemistry and Biochemistry, University of Bern, Freiestrasse 3, 3012 Bern, Switzerland"
],
"email": "roman.fasel@empa.ch",
"familyname": "Fasel",
"givennames": "Roman"
}
],
"owner": 26,
"license_addendum": null,
"mcid": "2020.131",
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"id": "610",
"status": "published"
},
"revision": 5,
"updated": "2020-10-26T19:06:38.386318+00:00",
"created": "2020-10-20T09:17:34.435591+00:00",
"id": "610"
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