All-thiolate-stabilized Ag42 nanocluster with a tetrahedral kernel and its transformation to an Ag61 nanocluster with a bi-tetrahedral kernel

Abstract

<p>Two new silver nanoclusters, formulated as <bold>Ag42</bold>(SBu^t)₂₄ and <bold>Ag61</bold>(SC₆H₁₁)₄₀Cl were prepared by a NaSbF₆-mediated two-phase ligand exchange method. A size conversion from <bold>Ag42</bold> to <bold>Ag61</bold> were achieved <italic>via</italic> cyclohexanethiol etching.</p>

Homoleptic Alkynyl‐Protected Ag15 Nanocluster with Atomic Precision: Structural Analysis and Electrocatalytic Performance toward CO2 Reduction

“…It is worth noting that, in this Ag 8 framework, the distance between yellow silver atoms is 3.484 ,a nd the distance between orange and yellow silver atoms on the diagonal of the body is 4.008 ,which is much longer than the general Ag-Ag bond length (2.88 ). [25,39,40] Therefore,i nteractions between the yellow Ag atoms in the Ag 8 framework are weak, and the two silver atoms (orange) on the body diagonal do not bond with the adjacent silver atoms (yellow). Therefore,the Ag 8 cube is not aregular cube,but an irregular one elongated along the body diagonal direction.…”

Homoleptic Alkynyl‐Protected Ag15 Nanocluster with Atomic Precision: Structural Analysis and Electrocatalytic Performance toward CO2 Reduction

“…It possesses a core–shell‐shell arrangement of Ag@Ag 8 @Ag 6 , in which the center is an Ag atom, and the second layer is an Ag 8 cube (Figure 2 b and c). It is worth noting that, in this Ag 8 framework, the distance between yellow silver atoms is 3.484 Å, and the distance between orange and yellow silver atoms on the diagonal of the body is 4.008 Å, which is much longer than the general Ag‐Ag bond length (2.88 Å) [25, 39, 40] . Therefore, interactions between the yellow Ag atoms in the Ag 8 framework are weak, and the two silver atoms (orange) on the body diagonal do not bond with the adjacent silver atoms (yellow).…”

A scintillating nanoplatform with upconversion function for the synergy of radiation and photodynamic therapies for deep tumors

“…sensitizer Yb/Nd co-doped with activator Er/Tm/Ho), which usually exhibits multi-color UCL spectra, in this work, we have chosen the unique NaErF 4 :0.5%Tm component as the imaging core. 47 As shown in Fig. 2a, this structure is characterized by the monochromatic narrow-band upconversion red emission around 650 nm with full width at half maximum (FWHM) of ~ 11 nm under the excitation of 800 nm, 980 nm or 1530 nm.…”