-A A +A
Four linear terarylene molecules (i) 4-nitro-terphenyl-4″-methanethiol (NTM), (ii) 4-nitro-terphenyl-3″,5″-dimethanethiol (NTD), (iii) ([1,1′;4′,1″] terphenyl-3,5-diyl)methanethiol (TM), and (iv) ([1,1′;4′,1″] terphenyl-3,5-diyl)dimethanethiol (TD) have been synthesized and their self-assembled monolayers (SAMs) have been obtained on polycrystalline gold. NTM and NTD SAMs have been characterized by X-ray photoelectron spectroscopy, Kelvin probe measurements, electrochemistry, and contact angle measurements. The terminal nitro group (−NO2) is irreversibly reduced to hydroxylamine (−NHOH), which can be reversibly turned into nitroso group (−NO). The direct comparison between NTM/NTD and TM/TD SAMs unambiguously shows the crucial influence of the nitro group on electrowetting properties of polycrystalline Au. The higher grade of surface tension related to NHOH has been successfully …
American Chemical Society
Publication date: 
25 Feb 2015

Stefano Casalini, Marcello Berto, Carlo A Bortolotti, Giulia Foschi, Alessandra Operamolla, Michele Di Lauro, Omar Hassan Omar, Andrea Liscio, Luca Pasquali, Monica Montecchi, Gianluca M Farinola, Marco Borsari

Biblio References: 
Volume: 7 Issue: 7 Pages: 3902-3909
ACS applied materials & interfaces