Loading...
Search for:
coordination-compound
0.004 seconds
First heterobimetallic AgI–CoIII coordination compound with both bridging and terminal –NO2 coordination modes: Synthesis, characterization, structural and computational studies of (PPh3)2AgI– (μ-κ2O,O′:κN-NO2)–COIII(DMGH)2(κN-NO2)
, Article Acta Crystallographica Section C: Structural Chemistry ; Volume 74, Issue 8 , 2018 , Pages 882-888 ; 20532296 (ISSN) ; Batmanghelich, S ; Raithby, P. R ; Sharif University of Technology
Wiley-Blackwell
2018
Abstract
An unusual heterobimetallic bis(triphenylphosphane)(NO2)AgI–CoIII(dimethyl-glyoximate)(NO2) coordination compound with both bridging and terminal –NO2 (nitro) coordination modes has been isolated and characterized from the reaction of [CoCl(DMGH)2(PPh3)] (DMGH2 is dimethylglyoxime or N,N′-di-hydroxybutane-2,3-diimine) with excess AgNO2. In the title compound, namely bis(dimethylglyoximato-1κ2O,O′)(μ-nitro-1κN:2κ2O,O′)(nitro-1κN)bis(triphenyl-phosphane-2κP)cobalt(III)silver(I), [AgCo(C4H7N2O2)2(NO2)2(C18H15P)2], one of the ambidentate –NO2 ligands, in a bridging mode, chelates the AgI atom in an isobidentate κ2O,O′-manner and its N atom is coordinated to the CoIII atom. The other –NO2 ligand...
Solvent-free preparation of copper ferrite microspheres composed of nanorods using a new coordination compound as precursor
, Article Journal of Materials Science: Materials in Electronics ; Volume 28, Issue 16 , 2017 , Pages 11682-11688 ; 09574522 (ISSN) ; Mohandes, F ; Ahmadian Fard Fini, S ; Sobhani, A ; Shabani Armaki, N ; Salavati Niasari, M ; Sharif University of Technology
Springer New York LLC
2017
Abstract
This work presents a simple solvent-free route based on solid-state thermal decomposition approach to synthesize magnetic copper ferrite (CuFe2O4) microspheres and copper ferrite/metal oxide composites. For this purpose, [Cu(en)3]3[Fe(ox)3]2 complex (where en = ethylenediamine and ox = oxalate) was introduced as a new single-source precursor. Ferromagnetic property of the nanostructures was determined by alternating gradient force magnetometer. The effect of different ligands and temperatures on the morphology of the products was investigated. Solid-state thermal decomposition of the precursor at different temperatures in the range of 400–800 °C led to the fabrication of magnetic copper...
Synthesis, characterization, DFT studies and catalytic activities of manganese(ii) complex with 1,4-bis(2,2′:6,2′′-terpyridin- 4′-yl) benzene
, Article Dalton Transactions ; Volume 41, Issue 39 , Jul , 2012 , Pages 12282-12288 ; 14779226 (ISSN) ; Hillier, W ; Shamkhali, A. N ; Amini, M ; Beckmann, K ; Jagličić, Z ; Jagodič, M ; Strauch, P ; Moghaddam, A. N ; Beretta, G ; Bagherzadeh, M ; Sharif University of Technology
2012
Abstract
A new di-manganese complex with "back-to-back" 1,4-bis(2,2′:6,2′′-terpyridin-4′-yl) benzene ligation has been synthesized and characterised by a variety of techniques. The back-to-back ligation presents a novel new mononuclear manganese catalytic centre that functions as a heterogeneous catalysis for the evolution of oxygen in the presence of an exogenous oxidant. We discuss the synthesis and spectroscopic characterizations of this complex and propose a mechanism for oxygen evolution activity of the compound in the presence of oxone. The di-manganese complex also shows efficient and selective catalytic oxidation of sulfides in the presence of H2O2. Density functional theory calculations were...
Monodentate palladium(0)-[60]fullerene complexes of diphosphine ligands as efficient and sustainable nanocatalysts for the Mizoroki-Heck coupling reaction of aryl chlorides
, Article New Journal of Chemistry ; Volume 41, Issue 18 , 2017 , Pages 9701-9709 ; 11440546 (ISSN) ; Hosseinzadeh, M ; Zarepour Jevinani, M ; Ghanbari, B ; Sharif University of Technology
Royal Society of Chemistry
2017
Abstract
Two mononuclear coordination complexes of fullerene[60] with Pd(dba)2 (dba = dibenzylideneacetone), [(η2-C60)Pd(Ph2P(CH2)2PPh2C(H)C(O)R)2] (R = C10H7 (1), C6H4Cl (2)), have been prepared using a simple procedure to explore new directions in palladium catalysis and nanocarbon chemistry. The palladium(0)-[60]fullerene complexes incorporating unsymmetrical phosphorus ylides have been characterized by 1H, 13C and 31P NMR spectroscopic methods and other conventional techniques such as IR, TGA, SEM, ICP-OES, EDX and TEM analysis. Attributed to the enhanced dispersity and uniform size of the Pd nanoparticles with phosphine-functionalized fullerenes, the prepared catalysts exhibited comparable...
Photocatalytic activity of mesoporous microbricks of ZnO nanoparticles prepared by the thermal decomposition of bis(2-aminonicotinato) zinc (II)
, Article Cuihua Xuebao/Chinese Journal of Catalysis ; Volume 36, Issue 5 , May , 2015 , Pages 742-749 ; 02539837 (ISSN) ; Tadjarodi, A ; Akhavan, O ; Sharif University of Technology
Science Press
2015
Abstract
Hollow microblocks of [Zn(anic)2 ], as a novel coordination compound, were synthesized using 2-aminonicotinic acid (Hanic) and zinc (II) nitrate tetrahydrate. The chemical composition of the zinc complex, ZnC12 H10 N4 O4 , was determined by Fourier transform infrared (FTIR) spectroscopy and elemental analysis. The synthesized zinc complex was used as a precursor to produce ZnO nanostructures by calcination at 550 °C for 4 h. Morphological studies by scanning electron microscopy and transmission electron microscopy revealed the formation of porous microbricks of ZnO nanoparticles. N2 adsorption-desorption analysis showed that the...