Covalent Anchoring and Interfacial Reactions of Adsorbed Porphyrins on Rutile TiO2(110)

Adsorption of 5-monocarboxyphenyl-10,15,20-triphenylporphyrin (MCTPP) to rutile TiO2(110) at room temperature produces molecules on the surface covalently anchored through the carboxylate group, coadsorbed with hydroxyl groups. At elevated temperatures, the free-base porphyrin molecules metalate on...

Descripción completa

Guardado en:
Detalles Bibliográficos
Autores principales: Wechsler, D., Fernández, C.C., Steinrück, H.-P., Lytken, O., Williams, F.J.
Formato: JOUR
Materias:
Carboxylation
Molecules
Oxide minerals
Titanium dioxide
Carboxylate groups
Covalent anchoring
Elevated temperature
Exposed to
Free base porphyrins
Hydroxyl groups
Lower temperatures
Rutile TiO2
Porphyrins
Acceso en línea:http://hdl.handle.net/20.500.12110/paper_19327447_v122_n8_p4480_Wechsler
Aporte de:
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
id todo:paper_19327447_v122_n8_p4480_Wechsler
record_format dspace
spelling todo:paper_19327447_v122_n8_p4480_Wechsler2023-10-03T16:36:09Z Covalent Anchoring and Interfacial Reactions of Adsorbed Porphyrins on Rutile TiO2(110) Wechsler, D. Fernández, C.C. Steinrück, H.-P. Lytken, O. Williams, F.J. Carboxylation Molecules Oxide minerals Titanium dioxide Carboxylate groups Covalent anchoring Elevated temperature Exposed to Free base porphyrins Hydroxyl groups Lower temperatures Rutile TiO2 Porphyrins Adsorption of 5-monocarboxyphenyl-10,15,20-triphenylporphyrin (MCTPP) to rutile TiO2(110) at room temperature produces molecules on the surface covalently anchored through the carboxylate group, coadsorbed with hydroxyl groups. At elevated temperatures, the free-base porphyrin molecules metalate on the surface, forming what we expect to be titanyl (Ti=O) porphyrin. The reaction is strongly coverage dependent with lower coverages metalating at lower temperatures, possibly caused by flat-lying molecules at low coverages being in closer proximity to the surface. This is in contrast to the behavior when exposed to Zn2+ ions in solution, where the coverage dependency is much less pronounced. © 2018 American Chemical Society. JOUR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_19327447_v122_n8_p4480_Wechsler
institution Universidad de Buenos Aires
institution_str I-28
repository_str R-134
collection Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic Carboxylation
Molecules
Oxide minerals
Titanium dioxide
Carboxylate groups
Covalent anchoring
Elevated temperature
Exposed to
Free base porphyrins
Hydroxyl groups
Lower temperatures
Rutile TiO2
Porphyrins
spellingShingle Carboxylation
Molecules
Oxide minerals
Titanium dioxide
Carboxylate groups
Covalent anchoring
Elevated temperature
Exposed to
Free base porphyrins
Hydroxyl groups
Lower temperatures
Rutile TiO2
Porphyrins
Wechsler, D.
Fernández, C.C.
Steinrück, H.-P.
Lytken, O.
Williams, F.J.
Covalent Anchoring and Interfacial Reactions of Adsorbed Porphyrins on Rutile TiO2(110)
topic_facet Carboxylation
Molecules
Oxide minerals
Titanium dioxide
Carboxylate groups
Covalent anchoring
Elevated temperature
Exposed to
Free base porphyrins
Hydroxyl groups
Lower temperatures
Rutile TiO2
Porphyrins
description Adsorption of 5-monocarboxyphenyl-10,15,20-triphenylporphyrin (MCTPP) to rutile TiO2(110) at room temperature produces molecules on the surface covalently anchored through the carboxylate group, coadsorbed with hydroxyl groups. At elevated temperatures, the free-base porphyrin molecules metalate on the surface, forming what we expect to be titanyl (Ti=O) porphyrin. The reaction is strongly coverage dependent with lower coverages metalating at lower temperatures, possibly caused by flat-lying molecules at low coverages being in closer proximity to the surface. This is in contrast to the behavior when exposed to Zn2+ ions in solution, where the coverage dependency is much less pronounced. © 2018 American Chemical Society.
format JOUR
author Wechsler, D.
Fernández, C.C.
Steinrück, H.-P.
Lytken, O.
Williams, F.J.
author_facet Wechsler, D.
Fernández, C.C.
Steinrück, H.-P.
Lytken, O.
Williams, F.J.
author_sort Wechsler, D.
title Covalent Anchoring and Interfacial Reactions of Adsorbed Porphyrins on Rutile TiO2(110)
title_short Covalent Anchoring and Interfacial Reactions of Adsorbed Porphyrins on Rutile TiO2(110)
title_full Covalent Anchoring and Interfacial Reactions of Adsorbed Porphyrins on Rutile TiO2(110)
title_fullStr Covalent Anchoring and Interfacial Reactions of Adsorbed Porphyrins on Rutile TiO2(110)
title_full_unstemmed Covalent Anchoring and Interfacial Reactions of Adsorbed Porphyrins on Rutile TiO2(110)
title_sort covalent anchoring and interfacial reactions of adsorbed porphyrins on rutile tio2(110)
url http://hdl.handle.net/20.500.12110/paper_19327447_v122_n8_p4480_Wechsler
work_keys_str_mv AT wechslerd covalentanchoringandinterfacialreactionsofadsorbedporphyrinsonrutiletio2110
AT fernandezcc covalentanchoringandinterfacialreactionsofadsorbedporphyrinsonrutiletio2110
AT steinruckhp covalentanchoringandinterfacialreactionsofadsorbedporphyrinsonrutiletio2110
AT lytkeno covalentanchoringandinterfacialreactionsofadsorbedporphyrinsonrutiletio2110
AT williamsfj covalentanchoringandinterfacialreactionsofadsorbedporphyrinsonrutiletio2110
_version_ 1782027301383307264

Ejemplares similares