Adsorption of Phenylboronic Acid Derivatives on Rutile TiO2(110)

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11320%2F24%3A10492086" target="_blank" >RIV/00216208:11320/24:10492086 - isvavai.cz</a>

Výsledek na webu

<a href="https://verso.is.cuni.cz/pub/verso.fpl?fname=obd_publikace_handle&handle=7T90BlJ-ox" target="_blank" >https://verso.is.cuni.cz/pub/verso.fpl?fname=obd_publikace_handle&handle=7T90BlJ-ox</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1021/acs.jpcc.4c03264" target="_blank" >10.1021/acs.jpcc.4c03264</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Adsorption of Phenylboronic Acid Derivatives on Rutile TiO2(110)

Popis výsledku v původním jazyce

Using high-resolution synchrotron-radiation photoelectron spectroscopy and near-edge X-ray-absorption fine structure, we have investigated the adsorption of three phenylboronic acid derivatives on rutile TiO2(110) at 300-700 K: 4-acetylphenylboronic acid, 1,4-phenylenediboronic acid, and 2,4,6-triphenylboroxine. Both 4-acetylphenylboronic acid and 1,4-phenylenediboronic acid adsorb in a singly deprotonated monodentate configuration at 300 K, which converts to a fully deprotonated bidentate species at 550 K. 2,4,6-Triphenylboroxine undergoes a ring-opening reaction upon adsorption on the surface and forms the fully deprotonated bidentate species already at 300 K. In the case of 1,4-phenylenediboronic acid, the upward-pointing boronic-acid groups polymerize into boronic anhydride chains upon heating starting at 350 K. For 2,4,6-triphenylboroxine, we find a slow boron-carbon bond cleavage over a wide temperature range, resulting in a slow disappearance of the phenyl rings from the surface. For 4-acetylphenylboronic acid, we observe a loss of the carbonyl group at 500-550 K. In addition, we observe the formation of trigonal boron oxide (B2O3) for all three molecules at temperatures above 600 K.

Název v anglickém jazyce

Adsorption of Phenylboronic Acid Derivatives on Rutile TiO2(110)

Popis výsledku anglicky

Using high-resolution synchrotron-radiation photoelectron spectroscopy and near-edge X-ray-absorption fine structure, we have investigated the adsorption of three phenylboronic acid derivatives on rutile TiO2(110) at 300-700 K: 4-acetylphenylboronic acid, 1,4-phenylenediboronic acid, and 2,4,6-triphenylboroxine. Both 4-acetylphenylboronic acid and 1,4-phenylenediboronic acid adsorb in a singly deprotonated monodentate configuration at 300 K, which converts to a fully deprotonated bidentate species at 550 K. 2,4,6-Triphenylboroxine undergoes a ring-opening reaction upon adsorption on the surface and forms the fully deprotonated bidentate species already at 300 K. In the case of 1,4-phenylenediboronic acid, the upward-pointing boronic-acid groups polymerize into boronic anhydride chains upon heating starting at 350 K. For 2,4,6-triphenylboroxine, we find a slow boron-carbon bond cleavage over a wide temperature range, resulting in a slow disappearance of the phenyl rings from the surface. For 4-acetylphenylboronic acid, we observe a loss of the carbonyl group at 500-550 K. In addition, we observe the formation of trigonal boron oxide (B2O3) for all three molecules at temperatures above 600 K.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10305 - Fluids and plasma physics (including surface physics)

Projekt

<a href="/cs/project/LM2023072" target="_blank" >LM2023072: Laboratoř fyziky povrchů – Vodíkové technologické centrum</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2024

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Journal of Physical Chemistry C

ISSN

1932-7447

e-ISSN

1932-7455

Svazek periodika

128

Číslo periodika v rámci svazku

30

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

21

Strana od-do

12450-12470

Kód UT WoS článku

001275494300001

EID výsledku v databázi Scopus

2-s2.0-85199464527