Synthesis and characterization of the asymmetrically coordinated dinuclear complex [{L(Ph2acac)FeIII}(μ-O){FeIII(Cl4-cat)L}](ClO4) and its one-electron reduced and oxidized forms. Models for dinuclear non-heme active sites

1998 ◽  
Vol 3 (1) ◽  
pp. 96-106 ◽  
Author(s):  
Michael Müller ◽  
Thomas Weyhermüller ◽  
Eckhard Bill ◽  
K. Wieghardt
Keyword(s):  
Active Sites ◽  
Dinuclear Complex ◽  
Synthesis And Characterization

Reaktion von DioxomoIybdän(VI)-Komplexen mit O-Methyl-thiocarbazat Darstellung und Charakterisierung von Schiffbase-, Hydrazido- und Diazenido-Komplexen des Molybdäns / Reaction of Dioxomolybdenum(VI) Complexes with O-Methylthiocarbazate Synthesis and Characterization of Schiffbase, Hydrazido and Diazenido Complexes of Molybdenum

1987 ◽  
Vol 42 (5) ◽  
pp. 599-604 ◽  
Author(s):  
Rainer Mattes ◽  
Heinz Scholand ◽  
Ulrich Mikloweit ◽  
Volker Schrenk
Keyword(s):  
Vibrational Spectroscopy ◽  
Mirror Symmetry ◽  
The Other ◽  
Dinuclear Complex ◽  
Synthesis And Characterization ◽  
Donor Ligand ◽  
Metal Atoms ◽  
Dimeric Complexes ◽  
Trigonal Prismatic

transThe reaction of NH2NHC(S)OR, (R = Me, Et) with MoO2(acac)2 yields the dimeric complexes MO2O3(MeC(O)CHC(Me)NNC(S)0R)2 (1) with the planar O = Mo - O - Mo = O group. The tetradentate O,N,S-donor ligand is formed through condensation of acetylacetone with the organohydrazine. The reactions of NH2NHC(S)OMe with MoO2(S2CNEt2)2 and MoO2(ONEt2)2 give the diazenido hydrazido complexes Mo(NNC(S)OMe)(NH2NC(S)OMe)(S2CNEt2)2·CH2Cl2(2) and Mo(NNC(S)OMe)(NH2NC(S)OMe)2(ONEt2) (4). The metal atoms in both compounds are seven coordinated and contain the approximately linear diazenido ligand NNC(S)OMe and one (2) or two (4) N,S-chelating hydrazido(1-) ligands NH2NC(S)OMe. 2 has crystallographically imposed mirror symmetry. Recrystallization of 2 from toluene in air gives the asymmetric dinuclear complex (Et2NCS2)(O)Mo(μ-NNC(S)OMe)2Mo(S2CNMe2) (3). The Mo-Mo distance is 267.0(2) pm. One Mo site has square pyramidal MoOS2N2 geometry, the other trigonal prismatic MoN2S4 geometry. The coordination of the bridging N atoms is slightly pyramidal. The compounds 1, 2 and 3 have been further characterized by vibrational spectroscopy.

scholarly journals Synthesis and characterization of a novel CNT-FeNi3/DFNS/Cu(ii) magnetic nanocomposite for the photocatalytic degradation of tetracycline in wastewater

RSC Advances ◽  
2019 ◽  
Vol 9 (60) ◽  
pp. 35022-35032 ◽  
Author(s):  
Yanhua Zhao ◽  
Jie Juan Tang ◽  
Alireza Motavalizadehkakhky ◽  
Saeid Kakooei ◽  
Seyed Mohsen Sadeghzadeh
Keyword(s):  
Photocatalytic Degradation ◽  
Surface Area ◽  
Active Sites ◽  
High Surface ◽  
High Surface Area ◽  
Magnetic Nanocomposite ◽  
Synthesis And Characterization

Herein, Cu(ii) complexes were anchored within the nanospaces of a magnetic fibrous silicate with a high surface area and easily accessible active sites via a facile approach, leading to the successful synthesis of a novel potent nanocatalyst (FeNi3/DFNS/Cu).

scholarly journals Synthesis and characterization of a supported Pd complex on carbon nanofibers for the selective decarbonylation of stearic acid to 1-heptadecene: the importance of subnanometric Pd dispersion

2020 ◽  
Vol 10 (9) ◽  
pp. 2970-2985
Author(s):  
Elba Ochoa ◽  
Wilson Henao ◽  
Sara Fuertes ◽  
Daniel Torres ◽  
Tomas van Haasterecht ◽  
...  
Keyword(s):  
Fatty Acids ◽  
Stearic Acid ◽  
Carbon Nanofibers ◽  
Active Sites ◽  
Catalyst Activity ◽  
Synthesis And Characterization ◽  
Pd Dispersion ◽  
Supported Pd

Evaluation of the dispersion of Pd active sites on the catalyst performance during fatty acids decarbonylation to α-olefins was explored in this work. Pd subnanometric particles, clusters and aggregates were found to modulate the catalyst activity.

Synthesis and characterization of robust, mesoporous electrodes for solid oxide fuel cells

2016 ◽  
Vol 4 (20) ◽  
pp. 7650-7657 ◽  
Author(s):  
Laura Almar ◽  
Alex Morata ◽  
Marc Torrell ◽  
Mingyang Gong ◽  
Meilin Liu ◽  
...  
Keyword(s):  
Solid Oxide Fuel Cells ◽  
Surface Area ◽  
Active Sites ◽  
High Surface ◽  
High Surface Area ◽  
Solid Oxide ◽  
Synthesis And Characterization ◽  
Electrochemical Reactions ◽  
Oxide Fuel

The use of mesoporous electrodes in solid oxide cells would lead to a significant enhancement of the performance due to their high surface area and large number of active sites for electrochemical reactions.

Synthesis and characterization of two binuclear iron(III) complexes of aminoethanol derivatives of aminophenol as models for non-heme iron enzymes active sites

Polyhedron ◽  
2011 ◽  
Vol 30 (6) ◽  
pp. 1143-1148 ◽  
Author(s):  
Elham Safaei ◽  
Iraj Saberikia ◽  
Andrzej Wojtczak ◽  
Zvonko Jagličić ◽  
Anna Kozakiewicz
Keyword(s):  
Active Sites ◽  
Heme Iron ◽  
Synthesis And Characterization ◽  
Non Heme Iron ◽  
Iron Enzymes ◽  
Derivatives Of ◽  
Binuclear Iron
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