Design of a fluorescent and clickable Ag38(SRN3)24 nanocluster platform: synthesis, modeling and self-assembling

Gaetano Campi; Lorenza Suber; Giuliana Righi; Ludovica Primitivo; Martina De Angelis; Daniela Caschera; Luciano Pilloni; Alessandra Del Giudice; Amedeo Palma; Mauro Satta; Alessandro Fortunelli; Luca Sementa

doi:10.1039/D1NA00090J

Design of a fluorescent and clickable Ag₃₈(SRN₃)₂₄ nanocluster platform: synthesis, modeling and self-assembling †

Gaetano Campi,

^a Lorenza Suber,

*^b Giuliana Righi,

^c Ludovica Primitivo,

^cd Martina De Angelis,^cd Daniela Caschera,

^e Luciano Pilloni,^f Alessandra Del Giudice,

^d Amedeo Palma,^b Mauro Satta,

^e Alessandro Fortunelli

^g and Luca Sementa

*^h

Author affiliations

* Corresponding authors

^a CNR-Istituto di Cristallografia, Via Salaria km 29,300-00015 Monterotondo Scalo, Rome, Italy
E-mail: gaetano.campi@ic.cnr.it

^b CNR-Istituto di Struttura della Materia, Via Salaria km 29,300-00015 Monterotondo Scalo, Rome, Italy
E-mail: lorenza.suber@ism.cnr.it

^c CNR-IBPM-c/o Dip. Chimica, Sapienza Università di Roma, p.le A. Moro 5, 00185 Rome, Italy

^d Dip. Chimica, Sapienza Università di Roma, p.le A. Moro 5, 00185 Rome, Italy

^e CNR-Istituto per lo Studio dei Materiali Nanostrutturati, Via Salaria km 29,300-00015 Monterotondo Scalo, Rome, Italy

^f ENEA SSPT-PROMAS-MATPRO, Materials Technology Division, Casaccia Research Centre, 00123 Rome, Italy

^g CNR-Istituto di Chimica dei Composti Organometallici, Via G. Moruzzi 1, 56127 Pisa, Italy

^h CNR-Istituto per i Processi Chimico Fisici, Via G. Moruzzi 1, 56127 Pisa, Italy
E-mail: luca.sementa@pi.ipcf.cnr.it

Abstract

Fluorescent atomically precise Ag₃₈(11-azido-2-ol-undecane-thiolate)₂₄ nanoclusters are easily prepared using sodium ascorbate as a “green” reducer and are extensively characterized by way of elemental analyses, ATR-FTIR, XRD, SAXS, UV-vis, fluorescence spectroscopies, and theoretical modeling. The fluorescence and the atomically determined stoichiometry and structure, the facile and environmentally green synthesis, together with the novel presence of terminal azido groups in the ligands which opens the way to “click”-binding a wide set of molecular species, make Ag₃₈(11-azido-2-ol-undecane-thiolate)₂₄ nanoclusters uniquely appealing systems for biosensing, recognition and functionalization in biomedicine applications and in catalysis.

Nanoscale Advances

Design of a fluorescent and clickable Ag₃₈(SRN₃)₂₄ nanocluster platform: synthesis, modeling and self-assembling †

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Design of a fluorescent and clickable Ag₃₈(SRN₃)₂₄ nanocluster platform: synthesis, modeling and self-assembling

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