نتایج جستجو برای: acetylacetonate

تعداد نتایج: 514  

F. F. Farzaneh

V2O5/SiO2 nanoparticles was prepared via an one-pot sol gel method from vanadyl- acetylacetonate and tetraethylorthosilicate in refluxing MeOH, followed by calcination at 700 °C for 2 hours. The resultant nanoparticles was characterized by means of scanning electron microscopy (SEM), transmission electron microscopy (TEM), X-ray diffraction (XRD), TGA and FTIR techniques. Rapid and efficient ar...

Journal: :Journal of Polymer Science Part A-1: Polymer Chemistry 1970

Journal: :Dalton transactions 2011
Massimo La Deda Alessandra Crispini Iolinda Aiello Mauro Ghedini Mario Amati Sandra Belviso Francesco Lelj

Four cyclometalated Pt(IV) compounds, 1a,b and 2a,b, were successfully obtained by oxidative addition of I(2) to 2-phenylpyridinate (PhPy) and Nile Red (NR) derived Pt(II) complexes with acetylacetonate (acac) or hexafluoroacetylacetonate (hacac) ancillary ligands. Single crystal X-ray diffraction, electrochemical, photophysical and computational studies have been performed in comparison with t...

Journal: :Nanoscale 2013
Tao Jin Shaojun Guo Jing-lin Zuo Shouheng Sun

Monodisperse 4.5 nm Pd nanoparticles (NPs) were synthesized by solution phase reduction of palladium acetylacetonate with morpholine borane in a mixture of oleylamine and 1-octadecene. These NPs were assembled on graphene uniformly in the form of a monolayer, and showed much enhanced catalysis for electrooxidation of formic acid. The work demonstrates the great potential of graphene as a suppor...

2011
Jacopo Samson Irene Piscopo Alex Yampolski Patrick Nahirney Andrea Parpas Amit Aggarwal Raihan Saleh Charles Michael Drain

Plasmid DNA can be used as a template to yield gold, palladium, silver, and chromium nanoparticles of different sizes based on variations in incubation time at 70 °C with gold phosphine complexes, with the acetates of silver or palladium, or chromium acetylacetonate. The employment of mild synthetic conditions, minimal procedural steps, and aqueous solvents makes this method environmentally gre...

2017
Claudia Dragonetti Alessia Colombo Daniele Marinotto Stefania Righetto Dominique Roberto Adriana Valore Muriel Escadeillas Véronique Guerchais Hubert Le Bozec Abdou Boucekkine Camille Latouche

We studied the second-order NLO properties in solution of various Ir(III) acetylacetonate complexes bearing a substituted cyclometallated 4-styryl-2-phenylpyridine (ppy-4-styryl-R, with R = NEt2, OMe, H, NO2) with the EFISH technique. The dipole moments were evaluated by Density Functional Theory (DFT) calculations. We have also investigated the Second Harmonic Generation (SHG) of composite fil...

2002

Results on the autooxidative decomposition of the transition metal B-diketonates (1-3) suggested the possibility of these chelates acting as initiators for the radical polymerization of vinyl monomers. Research in this field soon revealed the importance of the central metal atom as well as the ligand structure (4-10). Of a series of metal acetylacetonate~-Mn(Acac)~, M n ( A ~ a c ) ~ , Fe( A ~ ...

Journal: :caspian journal of chemistry 2012
hamid golchoubian hakimeh fazilati

a series of new heteroleptic chelated copper(ii) complexes that encompass n,n-dibezyl substituted derivative of ethylenediamine (x-diamine) and acetylacetonate (acac) were prepared.  the ir and electronic absorption spectra and the molar conductivity of the complexes are presented and discussed.  the molar conductivity values of the complexes in different solvents reveals a predominance of elec...

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