Charge-transfer complexation: A highly effective way towards chiral nanoparticles endowed by intrinsically chiral helicene and enantioselective SERS detection

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F67985858%3A_____%2F23%3A00575451" target="_blank" >RIV/67985858:_____/23:00575451 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/60461373:22310/23:43928177 RIV/60461373:22340/23:43928177

Výsledek na webu

<a href="https://hdl.handle.net/11104/0345237" target="_blank" >https://hdl.handle.net/11104/0345237</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.snb.2023.134332" target="_blank" >10.1016/j.snb.2023.134332</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Charge-transfer complexation: A highly effective way towards chiral nanoparticles endowed by intrinsically chiral helicene and enantioselective SERS detection

Popis výsledku v původním jazyce

An ordered chiral gold nanoparticle (AuNPs) array was prepared by the treatment of achiral sphere-shaped gold nanoparticles endowed with electron-accepting dinitro-phenyl (DNP) groups complexing with enantiomers of [6]helicene representing electron donors with strong chiroptical properties. Such surface-functionalization utilizes the principles of charge-transfer (CT) interaction. The incorporation of [6]helicene molecules with unique electronic and optical properties and subsequent arrangement of AuNPs caused chirality induction to intrinsically non-chiral plasmon-active nanostructures. The created nanostructures enabled the excitation of chiral plasmon and its application in highly sensitive enantioselective detection of small chiral molecules by surface-enhanced Raman spectroscopy (SERS). The chiral plasmonic response of such a system was shown to be fully controlled via the helicity of the parent [6]helicene. Upon calibration, it allowed us to directly determine the enantiomeric composition of non-racemic mixtures of (R)/(S)− 1-phenylethanol and (R)/(S)− 2-butanol.

Název v anglickém jazyce

Charge-transfer complexation: A highly effective way towards chiral nanoparticles endowed by intrinsically chiral helicene and enantioselective SERS detection

Popis výsledku anglicky

An ordered chiral gold nanoparticle (AuNPs) array was prepared by the treatment of achiral sphere-shaped gold nanoparticles endowed with electron-accepting dinitro-phenyl (DNP) groups complexing with enantiomers of [6]helicene representing electron donors with strong chiroptical properties. Such surface-functionalization utilizes the principles of charge-transfer (CT) interaction. The incorporation of [6]helicene molecules with unique electronic and optical properties and subsequent arrangement of AuNPs caused chirality induction to intrinsically non-chiral plasmon-active nanostructures. The created nanostructures enabled the excitation of chiral plasmon and its application in highly sensitive enantioselective detection of small chiral molecules by surface-enhanced Raman spectroscopy (SERS). The chiral plasmonic response of such a system was shown to be fully controlled via the helicity of the parent [6]helicene. Upon calibration, it allowed us to directly determine the enantiomeric composition of non-racemic mixtures of (R)/(S)− 1-phenylethanol and (R)/(S)− 2-butanol.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10401 - Organic chemistry

Projekt

Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2023

Kód důvěrnosti údajů

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

Název periodika

Sensors and Actuators B - Chemical

ISSN

0925-4005

e-ISSN

0925-4005

Svazek periodika

394

Číslo periodika v rámci svazku

1 NOV

Stát vydavatele periodika

CH - Švýcarská konfederace

Počet stran výsledku

11

Strana od-do

134332

Kód UT WoS článku

001158796700001

EID výsledku v databázi Scopus

2-s2.0-85167440292