نتایج جستجو برای: heterobinuclear
تعداد نتایج: 38 فیلتر نتایج به سال:
A novel heterobinuclear mixed valence complex [FeCu (BPBPMP)(OAc)2]ClO4, 1, with the unsymmetrical N5O2 donor ligand 2-bis[{(2-pyridylmethyl)aminomethyl}-6-{(2hydroxybenzyl)(2-pyridylmethyl)}aminomethyl]-4-methylphenol (H2BPBPMP) has been synthesized and characterized. A combination of data from mass spectrometry, potentiometric titrations, X-ray absorption and electron paramagnetic resonance s...
Utilization of binary information encoded in the charge configuration of quantum-dot cells (the quantum-dot cellular automata, QCA, paradigm) requires surface-bound molecule-sized dots for room temperature operation. Molecular QCA cells are mixed-valence complexes, and the evaluation of a surface-bound unsymmetrical, heterobinuclear, two-dot, Fe-Ru molecular QCA cell is described. The tailed co...
Utilization of binary information encoded in the charge configuration of quantum-dot cells (the quantum-dot cellular automata, QCA, paradigm) requires molecule-sized dots for room temperature operation. Molecular QCA cells are mixed-valence complexes, and the evaluation and functionalization of an unsymmetrical heterobinuclear, two-dot, Fe-Ru molecular QCA cell is described. The solid state str...
Each beta-protomer of the small betabeta subunit of Escherichia coli ribonucleotide reductase (R2) contains a binuclear iron cluster with inequivalent binding sites: Fe(A) and Fe(B). In anaerobic Fe(II) titrations of apoprotein under standard buffer conditions, we show that the majority of the protein binds only one Fe(II) atom per betabeta subunit. Additional iron occupation can be achieved up...
The chemistry of the heterobinuclear platinum-iridium complex [PtIr(CO)3(μ-dppm)2][PF6], 1, dppm = Ph2PCH2PPh2, is described. The reaction of a hydride with 1 gave [HPtIr(CO)2(μ-dppm)2], by displacement of the carbonyl ligand from platinum, while reaction of 1 with dihydrogen, hydrogen chloride or Ph2MeSiH gave the fluxional complex [PtIrH4(CO)(μ-dppm)2][PF6], [PtIrH2Cl2(CO)(μ-dppm)2][PF6], or ...
The formation of the mononuclear Pt(II) compound cis-[Pt(NH(3))(2)(Hmtpo-N(3))(2)](NO(3))(2).2H(2)O (1) (Hmtpo = 4,7-dihydro-5-methyl-7-oxo[1,2,4]triazolo[1,5-a]pyrimidine) upon reaction of Hmtpo with cisplatin is reported. Subsequent reactions of 1 with Pd(II) electrophiles of the type [Pd(am)(2)(H(2)O)(2)](NO(3))(2) ((am)(2) = en, bpy) in neutral aqueous media afford heterobinuclear complexes...
New hetero-binuclear Hg-Cu Schiff base complexes were prepared by reaction of 2,2'-[1,1'-(2,2-dimethylpropane-1,3-diyldinitrilo)-diethyldyne]diphenolato}copper(II) (CuL1) and 6,6'-X-2,2'-[(2,2-dimethylpropane-1,3-diyl)bis(nitrilomethanylylidene)]diphenolato copper(II) [(X = ethoxy (CuL2) and methoxy (CuL3)], with HgCl2 to give [Cu(L1)HgCl2] (1), [Cu(L2)HgCl2] (2), and [Cu(L3)HgCl2] (3), res...
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