Description

Hexachlorododecakis[Diphenyl(m-Sulfontophenyl)Phosphine]Pentapentacontagold, Dodecasodium Salt (Water Soluble) Schmid Au55 Cluster is a precisely defined, atomically precise gold nanocluster with the formula Au55. This compound matters as a premier model system in nanotechnology, bridging the gap between molecular chemistry and solid-state physics due to its unique quantum-confined electronic properties. It is primarily needed by researchers and developers in catalysis, nanoelectronics, and advanced materials science for fundamental studies and prototyping novel nanoscale devices.

Application

• Model Catalyst: Fundamental research on size-specific catalytic activity and selectivity for reactions like oxidation and hydrogenation.
• Nanoelectronics Prototyping: Serving as a building block for single-electron transistors and quantum dot devices due to its quantized charging behavior.
• Spectroscopic Standards: Use as a reference material in UV-Vis, fluorescence, and mass spectrometry for nanoparticle characterization.
• Advanced Material Synthesis: Precursor for creating composite materials with tailored optical, electronic, or catalytic properties.
• Biomedical Research: Investigation of interactions between well-defined nanoclusters and biological systems for potential theranostic applications.
• Surface Science Studies: Probe for understanding adsorption and self-assembly phenomena on various substrates.

Basic Information

Product Name	Hexachlorododecakis[Diphenyl(m-Sulfontophenyl)Phosphine]Pentapentacontagold, Dodecasodium Salt (Water Soluble) Schmid Au55 Cluster
CAS No.	115804-59-6
Molecular Formula	Contact for details
Molecular Weight	Contact for details
Synonyms	Au55 Nanocluster; Schmid's Gold Cluster Au55; Au55[P(C6H4SO3Na)3]12Cl6; Water-Soluble Au55 Cluster; Dodecasodium Hexachloro-dodecakis(tris(3-sulfonatophenyl)phosphine)-pentapentacontagold; Atomically Precise Gold Cluster; Au55(PPhSO3Na)12Cl6; Gold(0) Nanocluster Au55
EINECS	Contact for details

Quality Control

Every batch of our Schmid Au55 Cluster is characterized using advanced analytical techniques to ensure batch-to-batch consistency and purity, critical for reproducible research. Our quality commitment includes providing a comprehensive Certificate of Analysis (COA) with each shipment, detailing key parameters such as cluster purity, ligand shell integrity, and absence of larger nanoparticles or gold salts. We adhere to stringent in-house specifications developed for research-grade nanomaterials.

Storage

Preserve in a tightly closed container, protected from light. Store at 2-8°C. This material is hygroscopic (moisture-sensitive) and easily oxidized (store under inert atmosphere). For long-term stability, solutions should be prepared with degassed solvents and stored under an inert atmosphere such as argon or nitrogen.

Specification

Item	Specification
Appearance	Dark brown to black solid or solution
Identification (UV-Vis)	Characteristic absorption spectrum for Au55 cluster
Core Size (TEM)	~1.4 nm
Purity (Au55 Cluster)	≥ 95% (by HPLC/MS)
Solubility	Soluble in water, methanol
Ligand Shell Integrity (NMR)	Consistent with stated formula
Metal Impurities	≤ 0.5% (by ICP-MS)

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.