... Antonino Puglisi, Roberto Purrello, Enrico Rizzarelli, Salvatore Sortino* and Graziella Vecch... more ... Antonino Puglisi, Roberto Purrello, Enrico Rizzarelli, Salvatore Sortino* and Graziella Vecchio*. Dipartimento di Scienze Chimiche, Università di Catania ... and G. Vecchio, Polyhedron, 2002, 21, 1531 Article ChemPort ; (c) V. Cucinotta, A. Giuffrida, D. La Mendola, G. Maccarrone, A ...
Journal of the American Chemical Society, Mar 1, 2009
A highly nanoporous material has been obtained by self-assembly of calixarene and porphyrin build... more A highly nanoporous material has been obtained by self-assembly of calixarene and porphyrin building blocks. This supramolecular zeolite-like structure was successively functionalized by diffusion and coordination of metal ions to form a new bifunctionalized nanoporous material containing a porphyrinic pigment together with a metal center.
The journal of physical chemistry. B, Jan 31, 2015
Cysteine is a sulfur-containing amino acid that easily coordinates to soft metal ions and grafts ... more Cysteine is a sulfur-containing amino acid that easily coordinates to soft metal ions and grafts to noble metal surfaces. Recently, chiroptical activity of Ag(+)/cysteine coordination polymers has been widely studied, while, on the other hand, the appearance of a plasmon-enhanced circular dichroic signal (PECD) at the plasmonic spectral region (λ > 400 nm) has been observed for AgNPs capped with chiral sulfur-containing amino acids. These two events are both potentially exploited for sensing applications. However, the presence of Ag(+) ions in AgNP colloidal solution deals with the competition of cysteine grafting at the metal NP surface and/or metal ion coordination. Herein we demonstrate that the chiroptical activity observed by adding cysteine to AgNP colloids prepared by pulsed laser ablation in liquids (PLAL) is mainly related to the formation of CD-active Ag(+)/cysteine supramolecular polymers. The strict correlation between supramolecular chirality and hierarchical effects...
Journal of the Chemical Society, Dalton Transactions, 1992
Thermodynamic Study of Dimethyltin(1v) Complexes with Nucleoside 5'-Triphosp... more Thermodynamic Study of Dimethyltin(1v) Complexes with Nucleoside 5'-Triphosphates * ... Giuseppe Arena/ Rosario Cali, Annalinda Contino,a Nunzia Loretta.b Salvatore Musumecia and Roberto Purrellob a Oipartimento di Scienze Chimiche, Universita di Catania, V. le A. Doria 6, ...
Journal of the Chemical Society, Dalton Transactions, 1990
The complex formation of [SnMe 2] 2+ with citrate, tripolyphosphate, and nitrilotriacetate has be... more The complex formation of [SnMe 2] 2+ with citrate, tripolyphosphate, and nitrilotriacetate has been investigated potentiometrically at 25 C and I= 0.1 mol dm–3 (KNO 3); the protonation constants for all three ligands have also been determined under the same experimental ...
... Antonino Puglisi, Roberto Purrello, Enrico Rizzarelli, Salvatore Sortino* and Graziella Vecch... more ... Antonino Puglisi, Roberto Purrello, Enrico Rizzarelli, Salvatore Sortino* and Graziella Vecchio*. Dipartimento di Scienze Chimiche, Università di Catania ... and G. Vecchio, Polyhedron, 2002, 21, 1531 Article ChemPort ; (c) V. Cucinotta, A. Giuffrida, D. La Mendola, G. Maccarrone, A ...
Journal of the American Chemical Society, Mar 1, 2009
A highly nanoporous material has been obtained by self-assembly of calixarene and porphyrin build... more A highly nanoporous material has been obtained by self-assembly of calixarene and porphyrin building blocks. This supramolecular zeolite-like structure was successively functionalized by diffusion and coordination of metal ions to form a new bifunctionalized nanoporous material containing a porphyrinic pigment together with a metal center.
The journal of physical chemistry. B, Jan 31, 2015
Cysteine is a sulfur-containing amino acid that easily coordinates to soft metal ions and grafts ... more Cysteine is a sulfur-containing amino acid that easily coordinates to soft metal ions and grafts to noble metal surfaces. Recently, chiroptical activity of Ag(+)/cysteine coordination polymers has been widely studied, while, on the other hand, the appearance of a plasmon-enhanced circular dichroic signal (PECD) at the plasmonic spectral region (λ > 400 nm) has been observed for AgNPs capped with chiral sulfur-containing amino acids. These two events are both potentially exploited for sensing applications. However, the presence of Ag(+) ions in AgNP colloidal solution deals with the competition of cysteine grafting at the metal NP surface and/or metal ion coordination. Herein we demonstrate that the chiroptical activity observed by adding cysteine to AgNP colloids prepared by pulsed laser ablation in liquids (PLAL) is mainly related to the formation of CD-active Ag(+)/cysteine supramolecular polymers. The strict correlation between supramolecular chirality and hierarchical effects...
Journal of the Chemical Society, Dalton Transactions, 1992
Thermodynamic Study of Dimethyltin(1v) Complexes with Nucleoside 5'-Triphosp... more Thermodynamic Study of Dimethyltin(1v) Complexes with Nucleoside 5'-Triphosphates * ... Giuseppe Arena/ Rosario Cali, Annalinda Contino,a Nunzia Loretta.b Salvatore Musumecia and Roberto Purrellob a Oipartimento di Scienze Chimiche, Universita di Catania, V. le A. Doria 6, ...
Journal of the Chemical Society, Dalton Transactions, 1990
The complex formation of [SnMe 2] 2+ with citrate, tripolyphosphate, and nitrilotriacetate has be... more The complex formation of [SnMe 2] 2+ with citrate, tripolyphosphate, and nitrilotriacetate has been investigated potentiometrically at 25 C and I= 0.1 mol dm–3 (KNO 3); the protonation constants for all three ligands have also been determined under the same experimental ...
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Papers by Roberto Purrello