Surface-Assisted Alkane Polymerization: Investigation on Structure-Reactivity Relationship.
Surface-assisted polymerization of alkanes is a remarkable reaction for which the surface reconstruction of Au(110) is crucial. The surface of (1x2)-Au(110) precovered with molecules can be completely transformed into (1x 3)-Au(110) by introducing branched methylidene groups on both sides of the ali...
| Publicado en: | Journal of the American Chemical Society Vol. 140; no. 14; pp. 4820 - 4826 |
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| Autores principales: | , , , , , , , , , , , |
| Formato: | Artículo |
| Publicado: |
American Chemical Society
4/11/2018
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| Materias: | |
| Acceso en línea: | Ver este registro en EBSCOhost |
| fields | @attributes: recordID: 1 pdfLink: plink: https://search.ebscohost.com/login.aspx?direct=true&db=hlh&AN=129053529&site=ehost-live header: @attributes: shortDbName: hlh uiTerm: 129053529 longDbName: Humanities International Complete uiTag: AN controlInfo: bkinfo: jinfo: jid: 00027863 ACS jtl: Journal of the American Chemical Society issn: 00027863 maglogo: N pubinfo: dt: 4/11/2018 vid: 140 iid: 14 pid: 997 pub: American Chemical Society artinfo: ui: 129053529 10.1021/jacs.7b09097 ppf: 4820 ppct: 6 formats: tig: atl: Surface-Assisted Alkane Polymerization: Investigation on Structure-Reactivity Relationship. aug: au: Sun, Kewei Chen, Aixi Liu, Meizhuang Zhang, Haiming Duan, Ruomeng Ji, Penghui Li, Ling Li, Qing Li, Chen Zhong, Dingyong Müllen, Klaus Chi, Lifeng affil: Jiangsu Key Laboratory for Carbon Based Functional Materials & Devices, Institute of Functional Nano & Soft Materials (FUNSOM), Soochow University, Suzhou 215123, People's Republic of China School of Physics & State Key Laboratory of Optoelectronic Materials and Technologies, Sun Yat-sen University, 510275 Guangzhou, People's Republic of China School of Environment and Civil Engineering, Dongguan University of Technology, Dongguan 523808, People's Republic of China Max Planck Institute for Polymer Research, Ackermannweg 10, D-55128 Mainz, Germany Institute of Physical Chemistry, Johannes Gutenberg University Mainz, Duesbergweg 10-14, D-55128 Mainz, Germany su: Alkanes Polymerization Chemical reactions Aliphatic compounds Density functional theory Simulation methods & models sug: subj: Alkanes Polymerization Chemical reactions Aliphatic compounds Density functional theory Simulation methods & models ab: Surface-assisted polymerization of alkanes is a remarkable reaction for which the surface reconstruction of Au(110) is crucial. The surface of (1x2)-Au(110) precovered with molecules can be completely transformed into (1x 3)-Au(110) by introducing branched methylidene groups on both sides of the aliphatic chain (18, 19-dimethylidenehexatriacontane) or locally shifted into (1x3)-Au(110) under exposure to low-energy electrons (beam energy from 3.5 to 33.6 eV, for alkane dotriacontane). Scanning tunneling microscopy investigations demonstrate that alkane chains adsorbed on (1x3)-Au(110) are more reactive than on (1x2)-Au(110), presenting a solid experimental proof for structure -reactivity relationships. This di fference can be ascribed to the existence of an extra row of gold atoms in the groove of (1x3)-Au(110), providing active sites of Au atoms with lower coordination number. The experimental results are further confirmed by density functional theory simulations. pubtype: Academic Journal doctype: Article src: R language: English refInfo: copyright: @attributes: flag: Y dt: @attributes: year: 2018 holdings: @attributes: islocal: N |
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