Naslov
Gold-Induced Desulfurization in a Bis(ferrocenyl) Alkane Dithiol

Autori
Pensa, Evangelina ; Karpowicz, Rafal ; Jabłoński, Artur ; Trzybiński, Damian ; Woźniak, Krzysztof ; Šakić, Davor ; Vrček, Valerije ; Long, Nicholas J. ; Albrecht, Tim ; Kowalski, Konrad

Izvornik
Organometallics (0276-7333) 38 (2019), 9; 2227-2232

Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni

Ključne riječi
ferrocene, gold, nanoparticles, sulfur

Sažetak
Thiol-modified ferrocenes on gold have been archetypical model systems for many fundamental charge transfer and other studies, since both thiol-gold and ferrocene redox chemistry are considered to be well-understood. Thus unexpectedly, we found that for a representative of a new class of flexibly linked bis-ferrocenyl compounds, namely, 1-10-bis(1-ferrocenyl)decane dithiol, surface immobilization on gold failed. Instead, in the presence of gold, molecular decomposition took place, resulting in sulfur-based adlayers and well-defined molecular elimination products, for which we provide spectroscopic evidence. Careful control experiments and comparison with related ferrocene compounds provide insight into the mechanism of the observed elimination reactions, as a combined effect of the molecular structure and the nature of the gold/sulfur bond. These findings, thus, have a broader impact on the design of molecular adlayers, for example, in the context of surface functionalization in sensing or the synthesis of gold nanoparticles.

Izvorni jezik
Engleski

Znanstvena područja
Kemija, Farmacija

POVEZANOST RADA