32335-61-8Relevant academic research and scientific papers
Morphology Control in AgCu Nanoalloy Synthesis by Molecular Cu(I) Precursors
Vykoukal, Vit,Halasta, Vitezslav,Babiak, Michal,Bursik, Jiri,Pinkas, Jiri
, p. 15246 - 15254 (2019)
As nanoparticle preparation methods employing bottom-up procedures rely on the use of molecular precursors, the chemical composition and bonding of these precursors have a decisive effect on nanoparticle formation and their resulting morphology and properties. We synthesized the Cu(I) complexes [Cu(PPh3)2(bea)] (1, bea = benzoate) and [Cu(PPh3)3(Hphta)] (2, phta = phthalate) by reducing the corresponding Cu(II) mono- A nd dicarboxylates with triphenylphosphine. We characterized 1 and 2 by single-crystal X-ray diffraction analysis, elemental analyses, infrared and nuclear magnetic resonance spectroscopy, and mass spectrometry and obtained complete information about their structures in the solid state and in solution. Also, we examined their thermal stability in oleylamine and determined their decomposition temperatures to be used as the minimal reaction temperature in metal nanoparticle synthesis. The complexes 1 and 2 differ in the number of reducing PPh3 ligands and the strength of carboxylate bonding to the Cu(I) center. Therefore, we employed them in combination with [Ag(NH2C12H25)2]NO3 as molecular precursors in the solvothermal hot injection synthesis of AgCu nanoalloys in oleylamine and demonstrated their influence on the elemental distribution, phase composition, particle size distribution, shape, morphology, and optical properties of the resulting nanoparticles. The nanoalloy particles from the benzoate complex 1 were oblate and polydisperse and exhibited two surface plasmons at 393 and 569 nm, which is caused by their Janus-type structure. The nanoparticles prepared from the phthalate complex 2 were round and monodisperse and exhibited one plasmon at 413 nm, as they formed an AgCu solid solution with a random distribution of the elements in a particle.
New bioactive ferrocene-substituted heteroleptic copper(I) complex: Synthesis, structural elucidation, DNA interaction, and DFT study
Zubair, Shumaila,Asghar, Faiza,Badshah, Amin,Lal, Bhajan,Hussain, Raja Azadar,Tabassum, Saira,Tahir, Muhammad Nawaz
, p. 60 - 68 (2018/11/01)
In the present work, a new para-ferrocenylbenzoate copper(I) complex (a4) has been synthesized and characterized by numerous spectroscopic techniques such as: FT-IR, AAS, and CHNS analysis. Moreover, the single-crystal X-ray structure of the compound a4 was also explored. The DNA binding potency was determined by cyclic voltammetry, UV-visible spectroscopy, and viscometry. The redox behavior of the complex studied by cyclic voltammetry revealed a single quasi-reversible voltammogram, attributed to the dominant redox-active ferrocenyl moiety. The electrochemical study reveals that the complex binds to DNA non-covalently, the mode of interaction in particular, was found to be an electrostatic. The DNA binding constant was found to be 4.3 × 104 M?1, which is very significant and impressive for non-covalent interactions, and is in close agreement with the UV-visible spectroscopic results. DFT/B3LYP method was used to ascertain the energies of frontier molecular orbitals (HOMO/LUMO) and the charge distribution on the molecular structure. The ferrocene-based copper(I) complex (a4) demonstrated to be a decent candidate in terms of cytotoxicity, although less active than that of the standard chemotherapeutic drug (cisplatin).
Anion effects on the structural properties of bis(triphenylphosphine)copper(I) carboxylate complexes, [(PPh3)2CuO2CR]
Hart, Robert D.,Healy, Peter C.,Peake, Michelle L.,White, Allan H.
, p. 67 - 73 (2007/10/03)
The crystal and molecular structure of the 2:1 triphenylphosphine copper(I) benzoate complex [(PPha3)2CuCO2CC6H5] have been determined by a room-temperature single-crystal X-ray study. The complex is isomorphous with the dithiobenzoate analogue, crystallizing in the orthorhombic space group P212121 with a 20·094(5), b 16·929(9), c 10·659(8) A, Z 4; conventional R on |F| was 0·039 for 4261 independent 'observed' (I > 3σ(I)) reflections. Comparison of structural data for this and other [(PPh3)2CuO2CR] complexes shows that the P-Cu-P angle and the anion coordination are dependent on both the donor strength of the anion and on steric interactions between the anion and the triphenylphosphine ligands. The structure of the analogous nitrate complex [(PPh3)2CuNO3] has also been redetermined.
REACTION OF CARBON DIOXIDE WITH ARYLCOPPER(I) COMPLEXES CONTAINING TERTIARY PHOSPHINES
Marsich, N.,Camus, A.,Nardin, G.
, p. 429 - 438 (2007/10/02)
ArCuI compounds (Ar=phenyl, o-, m-, or p-tolyl) do not react with carbon dioxide at appreciable rate, but in the presence of triphenylphosphine in appropriate undergo insertion to give the corresponding carboxylato complexes ArCO2Cu(PPh3)2.In t
