scholarly journals 2,3-Bis(1-methylimidazol-2-yl)quinoxaline (bmiq), a new ligand with decoupled electron transfer and metal coordination sites: the very different redox behaviour of isoelectronic complexes with [PtCl2] and [AuCl2]+

2011 ◽  
Vol 40 (12) ◽  
pp. 2757 ◽  
Author(s):  
Ece Bulak ◽  
Tereza Varnali ◽  
Brigitte Schwederski ◽  
Biprajit Sarkar ◽  
Ingo Hartenbach ◽  
...  
Keyword(s):  
Electron Transfer ◽  
Metal Coordination ◽  
Redox Behaviour ◽  
Coordination Sites

Tetra- and Octalactam Macrocycles and Catenanes with Exocyclic Metal Coordination Sites: Versatile Building Blocks for Supramolecular Chemistry

2003 ◽  
Vol 9 (6) ◽  
pp. 1332-1347 ◽  
Author(s):  
Xi-you Li ◽  
Jens Illigen ◽  
Martin Nieger ◽  
Steffen Michel ◽  
Christoph A. Schalley
Keyword(s):  
Supramolecular Chemistry ◽  
Building Blocks ◽  
Metal Coordination ◽  
Coordination Sites

Ligand effects upon the reactions of Ni(II) with sodium tetrahydroborate: Ni(I) complexes of bipyridyl and 1,10-phenanthroline

1977 ◽  
Vol 55 (23) ◽  
pp. 4048-4055 ◽  
Author(s):  
David G. Holah ◽  
Alan N. Hughes ◽  
Benjamin C. Hui
Keyword(s):  
Electron Transfer ◽  
New Species ◽  
Sodium Tetrahydroborate ◽  
Outer Sphere ◽  
Donor Ligands ◽  
Rapid Reduction ◽  
Electron Transfer Mechanism ◽  
Ligand Effects ◽  
Coordination Sites ◽  
Citrate Reduction

The reactions between NaBH4 and Ni(II) have been studied in the presence of a variety of ligands in an effort to determine (a) the conditions under which reduction occurs, (b) the extent of the reduction (e.g. to Ni(I), Ni(0) complexes, or to Ni metal or boride), and (c) whether intermediate Ni complexes can be isolated.With ligands having no π-bonding capabilities (NH3, ethylenediamine, edta, citrate), reduction depends upon the Ni:ligand ratio and, in the presence of an excess of the ligand, reduction of Ni(II) is very slow. When vacant coordination sites exist on the metal through dissociation of, for example, Ni(NH3)62+, allowing for the interaction of the BH4 group with the metal, then rapid reduction to the metal (or boride) takes place.With the π-bonding N-donor ligands 1,10-phenanthroline (phen) and 2,2′-bipyridyl (bipy) reduction of the stable ML32+ complexes probably occurs via an outer-sphere electron transfer mechanism but, in these cases, new species of the type NiL2X (L = phen, bipy; X = BH4, PF6, BPh4), which formally contain Ni(I), have been isolated.

Mid- and Far-Infrared Marker Bands of the Metal Coordination Sites of the Histidine Side Chains in the Protein Cu,Zn-Superoxide Dismutase

2014 ◽  
Vol 2014 (27) ◽  
pp. 4650-4659 ◽  
Author(s):  
Bertrand Xerri ◽  
Hugo Petitjean ◽  
François Dupeyrat ◽  
Jean-Pierre Flament ◽  
Alain Lorphelin ◽  
...  
Keyword(s):  
Superoxide Dismutase ◽  
Far Infrared ◽  
Metal Coordination ◽  
Side Chains ◽  
Coordination Sites

scholarly journals Christopher S Johnson 1992 Ph.D. Thesis @ Northwestern University

2020 ◽  
Author(s):  
Christopher Johnson
Keyword(s):  
Electron Transfer ◽  
Transition Metal ◽  
Metal Oxide ◽  
Coordination Compounds ◽  
Iridium Oxide ◽  
Methanol Electrooxidation ◽  
Metal Coordination ◽  
Aqueous Electrolytes ◽  
Oxide Electrodes ◽  
Northwestern University

This is the Ph.D. Thesis of Dr. Christopher Stiles Johnson from Northwestern University (1992). The thesis consists of the understanding of electron transfer events at metal oxide electrodes in aqueous electrolytes, methanol electrooxidation at iridium oxide electrodes, and the electrochemistry of multi-electron reactions of transition metal coordination compounds of rhenium dioxo pyridyl complexes.

Elektronentransfer und Ionenpaar-Bildung, 8 [1] 107,109Ag ENDOR-Kopplungen und Redox-Verhalten des Radikal-Kontaktionenpaares aus Bis(triphenyIphosphino)silber(I)-Kation und 3,5-Di(tert-butyl)-o-benzosemichinon-Anion / Electron Transfer and Ion Pairing, 8 [1] 107'109Ag ENDOR Couplings and Redox Behaviour of the Radical Contact Ion Pair from Bis(triphenylphosphino)silver(I) Cation and 3,5-Di(tert-butyl)-o-benzosemiquinone Anion

1988 ◽  
Vol 43 (10) ◽  
pp. 1247-1252 ◽  
Author(s):  
H Bock ◽  
B Hierholzer ◽  
D Jaculi
Keyword(s):  
Electron Transfer ◽  
Cyclic Voltammetry ◽  
Ion Pairing ◽  
Ion Pair ◽  
Redox Behaviour ◽  
Tert Butyl ◽  
Silver Salts ◽  
Contact Ion Pair ◽  
First Time

For the first time, 107,109Ag ENDOR measurements in solution are reported. In addition, the formation of the known paramagnetic contact ion pair [Ag⊕(PR3)2(R2H2C6O2·⊖] on reduction of 3,5-di(tert-butyl)-o-benzoquinone in THF solution containing soluble silver salts and triphenylphosphine is studied by cyclic voltammetry.

Engineering metal coordination sites into the antibody light chain

1993 ◽  
Vol 115 (11) ◽  
pp. 4449-4456 ◽  
Author(s):  
Warren S. Wade ◽  
Jong S. Koh ◽  
Nianhe Han ◽  
Denise M. Hoekstra ◽  
Richard A. Lerner
Keyword(s):  
Light Chain ◽  
Metal Coordination ◽  
Coordination Sites
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