16828-95-8

Usage

InChI:InChI=1/Cu.4H3N/h;4*1H3/q+2;;;;

Upstream product

• 16089-31-9 diamminecopper(I) 
• 7664-41-7 ammonia 
• 12775-96-1 copper 
• 14127-61-8 calcium(II) ion 
• 52666-91-8 thiocyanic acid ; copper (II)-compound with ammonia 
• 28101-94-2 copper(II) triammoniate 
• 7758-99-8 copper(II) sulfate 
• 12125-02-9 ammonium chloride 
• 1336-21-6 ammonium hydroxide 

Downstream Products

• 1402164-67-3 [Cu(para-tert-butylbenzoic acid N',N'-dimethylhydrazide(-1H))2] 

Relevant academic research and scientific papers

Studies on the Pre-edge Region of the X-Ray Absorption Spectra of Copper(I) Oxide and the Diamminecopper(I) Ion

The distinctive pre-edge feature in the X-ray absorption spectra of copper(I) oxide and the diamminecopper(I) ion at the copper K-edge has been studied using synchrotron radiation.The relative intensities of these features, which are characteristic of cop

Electrochemical study of binary and ternary copper complexes in ammonia-chloride medium

Electrochemical and spectroscopic analyses (UV-vis and XRD) have been applied to evaluate the speciation of copper in ammonia-chloride solutions. The conditions for these analyses were established through thermodynamic studies that included predominance existence and Eh-pH diagrams. These studies highlighted the importance of copper ternary complexes and showed how the solubility of Cu(I) and Cu(II) increases over a wide range of pH when copper ternary complexes are formed. Hence, it has been elucidated the copper, ammonia and chloride concentrations that makes existence of these so-called copper ternary complexes, possible.

Control of chemical reaction involving dissolved oxygen using magnetic field gradient

This study investigated the control of dissolved oxygen concentration using magnetic forces from gradient magnetic fields near a Nd-Fe-B permanent magnet. Maximum values of magnetic flux density and the product of the magnetic flux density and its gradient were 0.63 T and 44 T2/m, respectively. The magnet was placed under a Petri dish filled with 15 ml of 10% ammonia water. The Petri dish had a copper sheet in the center. Absorbance of tetraamminecopper(II) complex produced by the reaction in oxygen was measured using a spectrophotometer to observe oxygen concentration. Results showed that the magnetic field quantitatively enhanced tetraamminecopper(II) complex production. Moreover, remarkable enhancement of the copper complex production occurred in the magnetic field at less than 2 mm depth. The calculated magnetic force increase near the magnet surface supports this result. These results show that greater enhancement of the reaction rate occurs when the stronger magnetic force acts on oxygen molecules.

Decorating of Ag and CuO on Cu Nanoparticles for Enhanced High Catalytic Activity to the Degradation of Organic Pollutants

Metal/semiconductor composites are promising catalysts with superior catalytic activity. In this work, a Cu/CuO-Ag composite with structure that consisted of Ag and CuO nanoparticles (NPs) decorated on the surface of Cu were fabricated via a facile in situ method. With characterization by transmission electron microscopy (TEM), X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS), energy dispersive X-ray spectroscopy (EDX), and inductively coupled plasma atomic emission spectrometry (ICP-AES), the structure and components of the Cu/CuO-Ag composite were well-defined. The Cu/CuO-Ag composite exhibited superior catalytic activities for the reduction of 4-nitrophenol (4-NP) in the presence of NaBH4 with just a trace amount of Ag NPs (1.28 wt %). The reduction reaction is completed in 75 s with an apparent rate constant kapp of 4.60 × 10-2 s-1. The Cu/CuO-Ag composite also showed excellent durable catalytic stability, as no significant activity loss was detected in the consecutive five reaction runs. With the aid of the Sabatier principle and volcano plot, the opportune chemical adsorption energy of the reagent 4-NP on the Cu/CuO-Ag composite was inferred to be the key to its high reaction rate. The CuO NPs as a semiconductor with narrow band gap also could help the Cu/CuO-Ag composite to capture the electrons/hydride ions and increase opportunities for 4-NP to be reduced. Furthermore, the Cu/CuO-Ag composite exhibited outstanding activity on the oxidative degradation of methylene blue (MB). This work enriched the bimetal/semiconductor catalyst system and supplied new insight into the catalysis mechanism.

Control of Heterometallic Three-Dimensional Macrocycles with Aromatic Stacks in Tunable Host Cavities

Using coinage metal (Cu(II), Ag(I)) hinges, two sets of heterometallic molecular capsules with analogous open-ended cavities were prepared based on the half-sandwich rhodium fragments. In the case of [Rh4Cu4] cages, up to six-fold-stacked host-guest structures were formed by varying the cavity's dimensions. Moreover, the series of capsules were demonstrated to self-fine-tune to form multi-heteroguest arrays via favourable donor-acceptor π interactions and Ag-π interactions, as evidenced from single-crystal X-ray analysis.

Unprecedented [d9]Cu?[d10]Au coinage bonding interactions in {Cu(NH3)4[Au(CN)2]}+[Au(CN)2]?salt

The X-ray structure of the {Cu(NH3)4[Au(CN)2]}+[Au(CN)2]?salt is reported showing an unprecedented [d9]Cu?[d10]Au coinage bond. The physical nature of the interaction

Chiral symmetry breaking by chemically manipulating statistical fluctuation in crystallization

Breaking out: By introducing a relatively stable intermediate to chemically control the nucleation rate, chiral symmetry breaking was achieved in the crystallization of intrinsically chiral helical coordination polymers. The fewer crystal clusters formed, the more pronounced the symmetry breaking (see picture). (Graph Presented)

The estimation of the stability of ionite complexes formed in the sorption of copper cations by weakly alkaline AM-7 anionite

The sorption of copper cations by the complex-forming AM-7 anionite was studied. It was shown that the sorption of copper ions from aqueous solutions was satisfactorily described by the Langmuir equation. The linear approximation to this equation can be u

Temperature-Induced Stacking to Create Cu2O Concave Sphere for Light Trapping Capable of Ultrasensitive Single-Particle Surface-Enhanced Raman Scattering

The fabrication of bowl or concave particles with “asymmetric centers” has drawn considerable attentions, in which multiple scattering occurs inside the particles and the ability of light scattering is distinctly enhanced. However, the limited variety of templates, the uncontrollable dimensions such as the size of concavity and the complex growth process have posed serious limitations to the reproducible construction of concave particles with desired geometries and their light-trapping properties. Herein, a “temperature-induced stacking” strategy is proposed to create controllable concavity Cu2O spheres for the first time. Different sizes of F68 micelles can be formed through aggregation under different reaction temperatures, which can serve as soft template to tailor concave geometries of Cu2O spheres. The as-prepared Cu2O concave sphere (CS) can serve as single-particle (SP) surface-enhanced Raman scattering (SERS) substrate for highly repeatable and consistent Raman spectra. The unique cavity of Cu2O CS entraps light effectively, which also enhances the scattering length owing to multiple light scattering. Combined with slightly increased surface area and charge-transfer process, Cu2O CS exhibits remarkable single-particle SERS performance, with an ultralow low detection limit (2 × 10?8 mol L?1) and metal comparable enhancement factor (2.8 × 105).

Spectral and photochemical characterization of the chlorodicyanocuprate(I) complex in aqueous solution

Absorption and emission spectra of aqueous solutions of Cu(CN)2- in which the chloride concentration was varied from 0.2 to 5 M were investigated. Spectral information indicates the formation of the Cu(CN)2Cl2- complex. The value of the equilibrium constant for the reaction Cu(CN)2-+Cl-Cu(CN)2Cl2- is 0.70±0.12 M at 5 M ionic strength. Excitation of the copper(I) complex in neutral aqueous solution containing 5 M chloride ion at room temperature results in luminescence emission centered at 475 nm with a quantum yield of 6.9±1.5×10-4 and a lifetime of 97.5±5.0 ns. Laser flash experiments (excitation at 266 nm) indicated the formation of hydrated electrons. The quantum yield of this process for the mixed ligand complex determined by continuous irradiation at 254 nm using electron scavengers (N2O and NO3-) is 0.18±0.02.