Macropolyhedral syn-B18H22, the “Forgotten” Isomer
The result's identifiers
Result code in 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>
Alternative codes found
RIV/68378271:_____/23:00574399
Result on the web
<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>
Alternative languages
Result language
angličtina
Original language name
Macropolyhedral syn-B18H22, the “Forgotten” Isomer
Original language description
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.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10402 - Inorganic and nuclear chemistry
Result continuities
Project
Result was created during the realization of more than one project. More information in the Projects tab.
Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2023
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Journal of the American Chemical Society
ISSN
0002-7863
e-ISSN
1520-5126
Volume of the periodical
145
Issue of the periodical within the volume
32
Country of publishing house
US - UNITED STATES
Number of pages
12
Pages from-to
17975-17986
UT code for WoS article
001042202600001
EID of the result in the Scopus database
2-s2.0-85168222913