نتایج جستجو برای: mononuclear complex
تعداد نتایج: 809035 فیلتر نتایج به سال:
In the title mononuclear complex, [MnCl(2)(C(18)H(13)N(3)O)(CH(4)O)], the Mn(II) ion assumes a distorted octa-hedral geometry. There is a π-π stacking inter-action between the phenanthroline ligand and the pyridine ring of a neighboring complex [centroid-to-centroid distance 3.5518 (13) Å]. The crystal structure also contains weak inter-molecular O-H⋯Cl hydrogen bonds that link neighboring comp...
ABSTRACT A study was carried out on levels of ascorbic acid changes in patients with type II diabetes mellitus. The purpose of this study was to determine total plasma and mononuclear leukocytes ascorbic acid levels in diabetic patients blood in different age groups and four groups with respect to glucose and comparison with those of normal individuals. The subjects include 62 patients with ty...
Supramolecular organization of a metal complex may significantly contribute to the magnetization dynamics of mononuclear SMMs. This is illustrated for a heptacoordinated Fe(II) complex with rather moderate Ising-type anisotropy for which a slow magnetization relaxation with significant energy barrier was reached when this complex was properly organized in the crystal lattice. Incidentally, it i...
A mononuclear complex [MoOCl4(H2O)] readily forms a metal−metal bonded {Mo2O4} core. A high content of pyridine in the reaction mixture prevents further aggregation of dinuclear cores into larger clusters and a neutral, dinuclear complex with the [Mo2O4Cl2(Py)4] composition is isolated as a product. Solid state structures of two compounds containing this complex, [Mo2O4Cl2(Py)4]·2.25Py (1) and ...
In the mononuclear title complex, [Ag(C(10)H(6)N(4))(2)]ClO(4), the Ag(I) ion is surrounded by two 5-(pyridin-2-yl)pyrazine-2-carbonitrile ligands, forming a considerably distorted square-planar N(4)-coordination geometry, with two short and two long Ag-N distances. Each perchlorate anion links two mononuclear coordination units through C-H⋯O(perchlorate) hydrogen bonding, forming an infinite t...
In the title mononuclear complex, [Pt(CH(3))Cl(C(45)H(41)N(3)P(2))], the pyridine-2,6-diamine ligand can be viewed as a centrosymmetric motif having two pendant N-benzyl-N-[(diphenyl-phosphan-yl)meth-yl] arms, the two P atoms of which chelate to the Pt(II) ion, forming a ten-membered metallocycle. A distorted square-planar coordination geometry around the Pt(II) atom is completed by a methyl li...
Photocatalytic enantioselective epoxidation of terminal olefins using a mononuclear non-heme chiral manganese catalyst, [(R,R-BQCN)MnII]2+, and water as an oxygen source yields epoxides with relatively high enantioselectivities (e.g., up to 60% enantiomeric excess). A synthetic mononuclear non-heme chiral Mn(IV)-oxo complex, [(R,R-BQCN)MnIV(O)]2+, affords similar enantioselectivities in the epo...
In the mononuclear title complex, [Ni(C(14)H(6)O(8)S(2))(C(12)H(8)N(2))(2)(H(2)O)], the Ni(II) atom is in a distorted octa-hedral coordination formed by four N atoms from two chelating 1,10-phenanthroline ligands and by two O atoms, one from a 9,10-dioxoanthracene-1,5-disulfonate ligand and the other from a water mol-ecule. An intra-molecular O-H⋯O hydrogen bond occurs. In the crystal, inter-mo...
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