Small size yet big action: a simple sulfate anion templated a discrete 78-nuclearity silver sulfur nanocluster with a multishell structure

Abstract

A discrete 78-nucleus silver-sulfur nanocluster with a sulfate-centered multishell structure was isolated and characterized. Its crystal structure revealed 18 and 60 Ag atoms in the inner and outer shell, respectively. The inner shell of 18-nuclearity Ag atoms is a very rare convex polyhedron featuring an elongated triangular orthobicupola. The incorporation of a sulfate anion and multishell arrangement in the nanocluster led to a dramatic decrease in the band gap (E = 1.40 eV). Our study showed that simple anions can also induce the formation of high-nuclearity silver clusters with excellent optical properties.

A Temperature‐Sensitive Luminescent Ag42 Nanocluster Supported by TertButyl Thiol Ligands

“…Therefore, the [Ag 42 S 5 (StBu) 25 (CF 3 COO) 4 ] 3 + cluster is chemically stable in solution under ambient conditions. [21][22][23] Furthermore, compound 1 is also chemically stable, which can hardly be oxidized in EtOH solution for at least two weeks at room temperature and provedb ya bsorption spectra for different times ( Figure S14). As ac onsequence, compound 1 has overcome the inherenti nstabilityo fs ilver nanoclusters, which offers an opportunity for furtherexploring its potential applications.…”

SILVER SULFATE (Ag2SO4): MOLECULAR ANALYSIS AND ION TRANSPORT

“…Perak sulfat (11)(12)(13)(14)(15)(16)(17)(18)(19)(20)(21)(22) merupakan senyawa ion dari perak dengan rumus Ag2SO4, yang digunakan dalam penyepuhan perak (silver plating) dan pengganti tanpa noda untuk perak nitrat. Garam sulfat ini stabil di bawah kondisi penggunaan dan penyimpanan biasa, meskipun ia menjadi gelap pada pajanan terhadap udara atau cahaya.…”

“…Perak Sulfat (Ag2SO4) (11)(12)(13)(14)(15)(16)(17)(18)(19)(20)(21)(22) memiliki konduktivitas (1)(2)(3)(4)(5)(6)(7)(8)(9)(10) . Besarnya nilai konduktivitas (1-10) ditentukan oleh konsentrasi elektrolit.…”

“…Garam sulfat ini stabil di bawah kondisi penggunaan dan penyimpanan biasa, meskipun ia menjadi gelap pada pajanan terhadap udara atau cahaya. Perak Sulfat (11)(12)(13)(14)(15)(16)(17)(18)(19)(20)(21)(22) mengalami interaksi molekul dalam pelarut Air. Berat molekul senyawa ini yaitu 311,799 gr/mol dengan tampilan kristal tidak berwarna.…”

“…Kelarutannya dalam air 0,79 gr/100 mL (20 o C) dan dapat larut juga dalam pelarut asam nitrat. Secara termokimia, perak sulfat (11)(12)(13)(14)(15)(16)(17)(18)(19)(20)(21)(22) memiliki entalpi pembentukan standar, ΔfHo298 -715 kJ/mol dan entropi molar standar, So298 16,74 kJ/mol. Perak sulfat (11)(12)(13)(14)(15)(16)(17)(18)(19)(20)(21)(22) tidak mudah terbakar.Perak Sulfat (Ag2SO4) (11)(12)(13)(14)(15)(16)(17)(18)(19)(20)(21)(22) memiliki konduktivitas (1)(2)(3)(4)(5)(6)(7)(8)(9)(10) .…”