A bis-tryptophan tweezer was installed on a polyoxometalate (POM) surface via a bis-amide covalent bond, yielding the enantiopure hybrid POM with C2 symmetry, as a result of the regioselective functionalization of decatungosilicate [γ-SiW10O36]8– at the lacunary site. The combined polyanionic and receptor properties are instrumental for a POM-driven solubilization and enrichment of single walled carbon nanotubes (SWCNTs) with diameter <1.1 nm, as demonstrated by Raman and UV/Vis-NIR evidence, in agreement with the calculated energetics of the tryptophan tweezer–SWCNT interaction.
Syrgiannis Z., Trautwein G., Calvaresi M., Modugno G., Zerbetto F., Carraro M., et al. (2019). Controlling Size-Dispersion of Single Walled Carbon Nanotubes by Interaction with Polyoxometalates Armed with a Tryptophan Tweezer. EUROPEAN JOURNAL OF INORGANIC CHEMISTRY, 2019(3), 374-379 [10.1002/ejic.201800660].
Controlling Size-Dispersion of Single Walled Carbon Nanotubes by Interaction with Polyoxometalates Armed with a Tryptophan Tweezer
Calvaresi M.
;Zerbetto F.;
2019
Abstract
A bis-tryptophan tweezer was installed on a polyoxometalate (POM) surface via a bis-amide covalent bond, yielding the enantiopure hybrid POM with C2 symmetry, as a result of the regioselective functionalization of decatungosilicate [γ-SiW10O36]8– at the lacunary site. The combined polyanionic and receptor properties are instrumental for a POM-driven solubilization and enrichment of single walled carbon nanotubes (SWCNTs) with diameter <1.1 nm, as demonstrated by Raman and UV/Vis-NIR evidence, in agreement with the calculated energetics of the tryptophan tweezer–SWCNT interaction.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
