Controllable Preparation of a Cu NCs@Zn-MOF Hybrid with Dual Emission Induced by an Ion Exchange Strategy for the Detection of Explosives

ACS Sensors, Journal Year: 2024, Volume and Issue: 9(9), P. 4701 - 4710

Published: Aug. 22, 2024

The precise synthesis of Cu NCs is a highly desirable and controllable route for the preparation desired structures properties, which facilitates rational design valuable probes fluorescence sensing understanding structure-property relationships. Herein, an ion-exchange strategy combined with bottom-up synthetic approach was utilized in process first time, achieved situ anchoring on support material HPU-14. as-prepared NCs@HPU-14-4h not only had good peroxidase-like property but also exhibited stable dual-emitting at 470 620 nm. Notably, endowed capability sensitive colorimetric detection H

Language: Английский

---

Localized assembly in biological activity: Origin of life and future of nanoarchitectonics

Advances in Colloid and Interface Science, Journal Year: 2025, Volume and Issue: 339, P. 103420 - 103420

Published: Feb. 3, 2025

Language: Английский

---

Luminescent Hydride-Free [Cu₇(SC₅H₉)₇(PPh₃)₃] Nanocluster: Facilitating Highly Selective C–C Bond Formation

Journal of the American Chemical Society, Journal Year: 2024, Volume and Issue: 146(30), P. 20937 - 20944

Published: July 9, 2024

Amidst burgeoning interest, atomically precise copper nanoclusters (Cu NCs) have emerged as a remarkable class of nanomaterials distinguished by their unparalleled reactivity. Nonetheless, the synthesis hydride-free Cu NCs and role stable catalysts remain infrequently explored. Here, we introduce facile synthetic approach to fabricate [Cu

Language: Английский

---

Exploring the impact of various reducing agents on Cu nanocluster synthesis

Dalton Transactions, Journal Year: 2024, Volume and Issue: 53(23), P. 9657 - 9663

Published: Jan. 1, 2024

Exploring the influence of different reducing agents and their corresponding reaction conditions on synthesis copper nanoclusters, this study aims to provide valuable insights that can steer future research efforts in field.

Language: Английский

---

Construction of novel Ag(0)-containing silver nanoclusters by regulating auxiliary phosphine ligands

Nanoscale, Journal Year: 2024, Volume and Issue: 16(19), P. 9361 - 9366

Published: Jan. 1, 2024

Controlled synthesis of metal clusters through minor changes in surface ligands holds significant interest because the corresponding entities serve as ideal models for investigating ligand environment's stereochemical and electronic contributions that impact structures properties clusters. In this work, we obtained two Ag(0)-containing nanoclusters (Ag17 Ag32) with near-infrared emissions by regulating phosphine auxiliary ligands. Ag17 Ag32 bear similar shells wherein features a trigonal bipyramid Ag5 kernel while has bi-icosahedral interpenetrating an Ag20 kernel. showed emission (NIR) around 830 nm. Benefiting from rigid structure, displayed more intense than Ag32. This work provides new insight into construction novel superatomic silver

Language: Английский

---

Assemble–Disassemble–Reassemble Dynamics in Copper Nanocluster-Based Superstructures

The Journal of Physical Chemistry Letters, Journal Year: 2024, Volume and Issue: 15(18), P. 4880 - 4889

Published: April 29, 2024

Assembling metal nanoclusters (MNCs) to form superstructures generates exciting photophysical properties distinct from those of their discrete precursors. Controlling the assembly process MNCs and understanding assembly-disassembly dynamics can have implications in achieving reversible self-assembly MNCs. The formation self-assembled copper (CuNCs) as homogeneous underlying mechanisms governing such a remain unexplored. Smart molecular imprinting surface ligands establish forces necessary for superstructures. Herein, we report highly luminescent, ordered 4-phenylimidazole-2-thiol (4-PIT)-protected CuNCs with help l-ascorbic acid secondary ligand. Through comprehensive spectroscopic analysis, deciphered mechanism process, where role interligand H-bonding C-H-π interactions was established. Notably, efficient reversibility demonstrated by re-establishing regenerating morphological signatures.

Language: Английский

---

Enabling Thermally Stimulated Delayed Phosphorescence in Cu(I) Cyclic Trinuclear Complexes with Near-Unity Quantum Yield

Journal of the American Chemical Society, Journal Year: 2025, Volume and Issue: unknown

Published: Feb. 17, 2025

Thermally stimulated delayed phosphorescence (TSDP) emission has recently been discovered in several Au(I)/Au(III) complexes, featuring thermally enhanced intensities and notable quantum yields (QYs). Developing earth-abundant metal-based TSDP emitters with further increased QYs holds significant promise for practical applications. Herein, we present a halogen bonding approach to achieve bromo-substituted Cu(I) cyclic trinuclear complexes (CTCs). Photophysical analysis theoretical calculations reveal the crucial role of suppressing excited-state distortions reducing energy differences between first second triplet excited states (T1 T2). This enables efficient spin-allowed reverse internal conversion, leading behavior. Additionally, low reorganization rigid halogen-bonded network CTCs result significantly suppressed nonradiative decay high QYs, one approaching near-unity. work provides an innovative extend behavior from QYs.

Language: Английский

---

Metal Cluster Catalysts for Electrochemical CO₂ Reduction

ACS Catalysis, Journal Year: 2025, Volume and Issue: unknown, P. 5731 - 5759

Published: March 24, 2025

Language: Английский

---

Direct Observation of Three Chiral Conformers of an Atomically Precise Metal Nanoparticle

Nano Letters, Journal Year: 2025, Volume and Issue: unknown

Published: April 28, 2025

Atomically precise metal nanoclusters (NCs) have attracted a lot of attention owing to their many interesting properties and applications. On the fundamental side, they can provide testbed for understanding structure-property relationships in nanomaterials. Hence, isomerism is intrinsic significance. In this work, we report atomically structure three Cu14 NC conformers, i.e., NCs with same chemical formula atomic connectivity but varying bond angles distances, obtained through X-ray crystallography. Interestingly, all conformers exhibit chirality cocrystallize lattice structure. Since interconversion each conformer its chiral counterpart possible without breaking remaking bonds, these constitute set atropisomers. The our highlights various sources one observe at nanoscale. These subtle yet identifiable differences represent something like minimal unit structural change, facilitating future investigation relationships.

Language: Английский

---

Photoinduced Formation and Intercluster Conversion of a Thiol-Templated Copper Nanocluster

ACS Applied Optical Materials, Journal Year: 2024, Volume and Issue: 2(9), P. 1880 - 1890

Published: Aug. 26, 2024

The preparation of metal nanoclusters through light–matter interaction is an unexplored realm nanomaterials research. A comprehensive understanding the stages involved in growth process scant literature. Herein, we report photoinduced formation yellow-emissive copper (Y-CuNCs) from a binuclear complex [Cu2(SPhCl)2(PPh3)4], which was subsequently observed to undergo conversion green-emissive (G-CuNCs). We were able characterize intermediate complexes, fragments, and formed process, attributed precursors for CuNCs. To initially Cu2(SPhCl)2(PPh3)4, irradiation with ultraviolet (UV) light (λ ∼ 365 nm) resulted Y-CuNCs. Further, upon solution Y-CuNCs UV light, convert G-CuNCs via intercluster conversion. both CuNCs has been extensively studied UV–vis absorption features, photoluminescence studies, lifetime measurements. confirmed help transmission electron microscopy images, electrospray ionization mass spectroscopy (ESI-MS) analysis, 31P NMR data analysis. Moreover, plausible mechanism also substantiated ESI-MS

Language: Английский

---