Tuning the Photophysical Properties of Anti-B18H22 [1]

0443207 - ÚACH 2016 RIV CZ eng C - Conference Paper (international conference)
Braborec, Jakub - Černá, H. - Benkocká, M. - Kolská, Z. - Londesborough, Michael Geoffrey Stephen
Tuning the Photophysical Properties of Anti-B18H22 [1].
NANOCON 2014. 6th International conference proceedings. Ostrava: TANGER, 2015, s. 300-303. ISBN 978-80-87294-53-6.
[NANOCON 2014. International Conference /6./. Brno (CZ), 05.11.2014-07.11.2014]
Institutional support: RVO:61388980
Keywords : borane hydrides * singlet oxygen * fluorescent boranes
Subject RIV: CA - Inorganic Chemistry

The tuning of the photophysical properties of the highly fluorescent boron hydride cluster anti-B18H22 (1), by straight-forward chemical substitution to produce 4,4'-(HS)(2)-anti-B18H20 (2), facilitates intersystem crossing from excited singlet states to a triplet manifold.[1] This subsequently enhances O-2((1)Delta(g)) singlet oxygen production from a quantum yield of Phi(Delta) similar to 0.008 in 1 to 0.59 in 2. This contribution describes the synthesis and full structural characterization of the new compound 4,4'-(HS) 2-anti-B18H20 (2) and uses UV-vis spectroscopy coupled with DFT and ab initio computational studies to delineate and explain its photophysical properties. Additionally, we will report on new fluorescent derivatives of anti-B18H22 and their immobilisation on solid nanostructured substrates.
Permanent Link: http://hdl.handle.net/11104/0245962