Macropolyhedral syn-B18H22, the “Forgotten” Isomer

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61388980%3A_____%2F23%3A00574399" target="_blank" >RIV/61388980:_____/23:00574399 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/68378271:_____/23:00574399

Výsledek na webu

<a href="https://hdl.handle.net/11104/0344863" target="_blank" >https://hdl.handle.net/11104/0344863</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1021/jacs.3c05530" target="_blank" >10.1021/jacs.3c05530</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Macropolyhedral syn-B18H22, the “Forgotten” Isomer

Popis výsledku v původním jazyce

The chemistry and physics of macropolyhedral B18H22 clusters have attracted significant attention dueto theinteresting photophysical properties of anti-B18H22 (blue emission, laser properties) and relatedpotential applications. We have focused our attention on the “forgotten” syn-B18H22 isomer, which has receivedvery little attention since its discovery compared to its anti-B18H22 isomer, presumably becausenumerous studies have reported this isomer as nonluminescent. In ourstudy, we show that in crystalline form, syn-B18H22 exhibits blue fluorescence and becomes phosphorescentwhen substituted at various positions on the cluster, associated withpeculiar microstructural-dependent effects. This work is a combinedtheoretical and experimental investigation that includes the synthesis,separation, structural characterization, and first elucidation ofthe photophysical properties of three different monothiol-substitutedcluster isomers, [1-HS-syn-B18H21] 1, [3-HS-syn-B18H21] 3, and [4-HS-syn-B18H21] 4, of which isomers 1 and 4 have been proved to exist in two different polymorphic forms.All of these newly substituted macropolyhedral cluster derivatives(1, 3, and 4) have been fullycharacterized by NMR spectroscopy, mass spectrometry, single-crystalX-ray diffraction, IR spectroscopy, and luminescence spectroscopy.This study also presents the first report on the mechanochromic shiftin the luminescence of a borane cluster and generally enriches thearea of rather rare boron-based luminescent materials. In addition,we present the first results proving that they are useful constituentsof carbon-free self-assembled monolayers.

Název v anglickém jazyce

Macropolyhedral syn-B18H22, the “Forgotten” Isomer

Popis výsledku anglicky

The chemistry and physics of macropolyhedral B18H22 clusters have attracted significant attention dueto theinteresting photophysical properties of anti-B18H22 (blue emission, laser properties) and relatedpotential applications. We have focused our attention on the “forgotten” syn-B18H22 isomer, which has receivedvery little attention since its discovery compared to its anti-B18H22 isomer, presumably becausenumerous studies have reported this isomer as nonluminescent. In ourstudy, we show that in crystalline form, syn-B18H22 exhibits blue fluorescence and becomes phosphorescentwhen substituted at various positions on the cluster, associated withpeculiar microstructural-dependent effects. This work is a combinedtheoretical and experimental investigation that includes the synthesis,separation, structural characterization, and first elucidation ofthe photophysical properties of three different monothiol-substitutedcluster isomers, [1-HS-syn-B18H21] 1, [3-HS-syn-B18H21] 3, and [4-HS-syn-B18H21] 4, of which isomers 1 and 4 have been proved to exist in two different polymorphic forms.All of these newly substituted macropolyhedral cluster derivatives(1, 3, and 4) have been fullycharacterized by NMR spectroscopy, mass spectrometry, single-crystalX-ray diffraction, IR spectroscopy, and luminescence spectroscopy.This study also presents the first report on the mechanochromic shiftin the luminescence of a borane cluster and generally enriches thearea of rather rare boron-based luminescent materials. In addition,we present the first results proving that they are useful constituentsof carbon-free self-assembled monolayers.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10402 - Inorganic and nuclear 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

Journal of the American Chemical Society

ISSN

0002-7863

e-ISSN

1520-5126

Svazek periodika

145

Číslo periodika v rámci svazku

32

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

12

Strana od-do

17975-17986

Kód UT WoS článku

001042202600001

EID výsledku v databázi Scopus

2-s2.0-85168222913