نتایج جستجو برای: uranyl complex donor ligands
تعداد نتایج: 929353 فیلتر نتایج به سال:
The asymmetric unit of the title Cd(II) complex, [Cd(C(8)H(5)O(3))(2)(C(6)H(6)N(2)O)(2)(H(2)O)]·H(2)O, contains two 4-formyl-benzoate (FB), two isonicotinamide (INA) ligands, one coordinated and one uncoordinated water mol-ecule; the FB ions act as bidentate ligands. The coordination number of the Cd(II) atom is seven within a CdO(5)N(2) donor set. Intra-molecular O-H⋯O hydrogen bonds link the ...
Dye-sensitized solar cells are a promising alternative to traditional inorganic semiconductor-based solar cells. Here we report an open-circuit voltage of over 1,000 mV in mesoscopic dye-sensitized solar cells incorporating a molecularly engineered cobalt complex as redox mediator. Cobalt complexes have negligible absorption in the visible region of the solar spectrum, and their redox propertie...
Using a metal-ligand coordination bonding approach, the self-assembly of four new metallamacrocycles from Pd(ii)-based 90 degrees acceptors and a diimidazole donor ligand 1,3-bis(imidazole-1-ylmethyl)-2,4,6-trimethylbenzene (L) has been achieved. The assemblies are characterized fully by NMR and electrospray ionization-mass spectroscopic (ESI-MS) analysis and in two cases the X-ray single-cryst...
The new trans-[Pt(4-mpy)2Cl4] (1) complex (4-mpy is 4-methylpyridine) was prepared from the reaction of H2PtCl6.6H2O with 4-methylpyridine in methanol. Synthesized complex was thoroughly characterized by elemental analysis, IR and 1H-NMR spectroscopy.Elemental analysis data (C, H, N) support the general composition of the title complex and the structure have been established by single-crystal X...
Acetylacetonates of a number of transition metals (e.g., chromium, iron, cobalt, nickel, copper and zinc) have been widely investigated [1, 2] for their various physical and structural properties. Considerable attention seems to have been directed to the addition complexes of copper bis-acetylacetonate with a number of nitrogen donor ligands [3-5] but the addition complexes of Cu(acac)2 with ox...
Natural killer cells possess key regulatory function in various malignant diseases, including acute myeloid leukemia. NK cell activity is driven by signals received through ligands binding activating or inhibitory receptors. Their towards elimination of transformed virally infected can be mediated MICA, MICB and ULBP the receptor NKG2D. Given efficiency cells, potential target developed multipl...
We report on the synthesis of a variety of C,E-bidentate triazolylidene ruthenium complexes that comprise different donor substituents E (E = C: phenyl anion; E = O: carboxylate, alkoxide; E = N: pyridine at heterocyclic carbon or nitrogen). Introduction of these donor functionalities is greatly facilitated by the synthetic versatility of triazoles, and their facile preparation routes. Five dif...
The kinetics of the reactions between [Ni(MeOH)6](2+) (hereafter Ni(2+)) and a variety of neutral Schiff base multidentate ligands have been measured in methanol at 25.0 °C using stopped-flow spectrophotometry. The ligands contain a variety of different potential donor sites (phenolic OH, imine N, pyridyl N and NH groups), different structural components and substituents. The kinetic studies ex...
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