Probing the Formation, Structure, and Reactivity of Zn(II), Ag(I), and Fe(II) Complexes with 2,2':6',2''-Terpyridine on Ag Nanoparticles Surfaces by Time Evolution of SERS Spectra, Factor Analysis, and DFT Calculations

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11310%2F18%3A10374432" target="_blank" >RIV/00216208:11310/18:10374432 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/00216208:11320/18:10374432

Výsledek na webu

<a href="https://doi.org/10.1021/acs.jpcc.7b12157" target="_blank" >https://doi.org/10.1021/acs.jpcc.7b12157</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1021/acs.jpcc.7b12157" target="_blank" >10.1021/acs.jpcc.7b12157</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Probing the Formation, Structure, and Reactivity of Zn(II), Ag(I), and Fe(II) Complexes with 2,2':6',2''-Terpyridine on Ag Nanoparticles Surfaces by Time Evolution of SERS Spectra, Factor Analysis, and DFT Calculations

Popis výsledku v původním jazyce

The adsorption and surface reactivity of 2,2&apos;:6&apos;,2&quot;-terpyridine (tpy) and its metal (M = Zn2+, Fe2+, Ag+) complexes on Ag nanoparticle surfaces together with the structure of the resulting M-s(x+)-tpy surface species and the mechanism of their formation have been investigated. The process was elucidated by time-dependent surface-enhanced Raman scattering (SERS) spectra, their treatment by factor analysis (FA), density functional theory (DFT) calculations of Raman spectra, and comparison of the SERS spectra of the surface species (obtained by FA) with the Raman spectra of their synthetic analogues (characterized by X-ray diffraction). SERS spectral time evolution revealed surface-induced decomposition of the [Zn(tpy)(2)](2+) complex and formation of Zn-s(2+)-tpy and Ag-s(+)-tpy surface species, accompanied by a ligand exchange of one tpy ligand for chloride anions on the Zn2+ center. The inhibition of Ag-s(+)-tpy surface species formation was achieved by addition of Zn2+ cations prior to the addition of the [Zn(tpy)(2)](2+) complex The [Fe(tpy)(2)](2+) complex exhibited no surface decomposition and was identical to the Fe-s(2+)-tpy surface species. Additionally, generation of M-s(x+)-tpy species on the Ag nanoparticle surfaces by reaction of tpy and Mx+ cations was monitored by SERS and evaluated by FA. Determination of the Zn-s(2+)-tpy and Ag-s(+)-tpy structures was supported by DFT calculations of the Raman spectra of Zn-tpy and Ag-tpy fragments.

Název v anglickém jazyce

Probing the Formation, Structure, and Reactivity of Zn(II), Ag(I), and Fe(II) Complexes with 2,2':6',2''-Terpyridine on Ag Nanoparticles Surfaces by Time Evolution of SERS Spectra, Factor Analysis, and DFT Calculations

Popis výsledku anglicky

The adsorption and surface reactivity of 2,2&apos;:6&apos;,2&quot;-terpyridine (tpy) and its metal (M = Zn2+, Fe2+, Ag+) complexes on Ag nanoparticle surfaces together with the structure of the resulting M-s(x+)-tpy surface species and the mechanism of their formation have been investigated. The process was elucidated by time-dependent surface-enhanced Raman scattering (SERS) spectra, their treatment by factor analysis (FA), density functional theory (DFT) calculations of Raman spectra, and comparison of the SERS spectra of the surface species (obtained by FA) with the Raman spectra of their synthetic analogues (characterized by X-ray diffraction). SERS spectral time evolution revealed surface-induced decomposition of the [Zn(tpy)(2)](2+) complex and formation of Zn-s(2+)-tpy and Ag-s(+)-tpy surface species, accompanied by a ligand exchange of one tpy ligand for chloride anions on the Zn2+ center. The inhibition of Ag-s(+)-tpy surface species formation was achieved by addition of Zn2+ cations prior to the addition of the [Zn(tpy)(2)](2+) complex The [Fe(tpy)(2)](2+) complex exhibited no surface decomposition and was identical to the Fe-s(2+)-tpy surface species. Additionally, generation of M-s(x+)-tpy species on the Ag nanoparticle surfaces by reaction of tpy and Mx+ cations was monitored by SERS and evaluated by FA. Determination of the Zn-s(2+)-tpy and Ag-s(+)-tpy structures was supported by DFT calculations of the Raman spectra of Zn-tpy and Ag-tpy fragments.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10403 - Physical chemistry

Projekt

<a href="/cs/project/GA17-05007S" target="_blank" >GA17-05007S: Vzájemné ovlivnění chemických a plasmonem indukovaných procesů v hybridních systémech plasmonických nanočástic a molekul</a><br>

Návaznosti

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

Rok uplatnění

2018

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

—

Svazek periodika

122

Číslo periodika v rámci svazku

11

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

12

Strana od-do

6066-6077

Kód UT WoS článku

000428356700025

EID výsledku v databázi Scopus

2-s2.0-85044388684