نتایج جستجو برای: coordination solvent
تعداد نتایج: 132304 فیلتر نتایج به سال:
The title cluster, [Cu4(C11H12N2O6)4], was obtained from the Cu(0)-FeCl2·4H2O-H4 L-Et3N-DMF reaction system (in air), where H4 L is 2-hy-droxy-methyl-2{[(2-hy-droxy-3-nitro-phen-yl)methyl-idene]amino}-propane-1,3-diol and DMF is di-methyl-formamide. The asymmetric unit consists of one Cu(2+) ion and one dianionic ligand; a -4 symmetry element generates the cluster, which contains a {Cu4O4} cuba...
The asymmetric unit of the title compound, [Mn(C(8)H(6)N(4))(2)(H(2)O)(2)](ClO(4))(2)·2CH(3)NO(2)·H(2)O, contains one half of a cationic Mn(II) complex, a ClO(4) (-) anion, a nitro-methane solvent mol-ecule and one half-mol-ecule of water. The complex mol-ecule and the solvent water mol-ecule are located on a twofold rotation axis. In the complex, the Mn(II) ion has a distorted cis-N(4)O(2) oct...
In the title compound, [Co(SO(4))(C(12)H(8)N(2))(2)]·C(4)H(10)O(2), the Co(2+) ion has a distorted octa-hedral coordination environment composed of four N atoms from two chelating 1,10-phenanthroline ligands and two O atoms from an O,O'-bidentate sulfate anion. The dihedral angle between the two chelating N(2)C(2) groups is 83.48 (1)°. The Co(2+) ion, the S atom and the mid-point of the central...
In the title compound, [Zr(C(11)H(10)NO)(4)]·2C(3)H(7)NO, the Zr(IV) ion is coordinated by four bidentate 5,7-dimethylquinolin-8-olate ligands in a slightly distorted square-anti-prismatic coordination environment. The asymmetric unit also contains two N,N'-dimethyl-formamide (DMF) solvent mol-ecules. In the crystal, a weak C-H⋯O hydrogen bond links the complex mol-ecule to a solvent mol-ecule ...
The interactions between the reactive excited state of molecular photocatalysts and surrounding solvent dictate reaction mechanisms and pathways, but are not readily accessible to conventional optical spectroscopic techniques. Here we report an investigation of the structural and solvation dynamics following excitation of a model photocatalytic molecular system [Ir2(dimen)4]2+, where dimen is p...
Photoionization is at the heart of X-ray photoelectron spectroscopy (XPS), which gives access to important information on a sample's local chemical environment. Local and non-local electronic decay after photoionization-in which the refilling of core holes results in electron emission from either the initially ionized species or a neighbour, respectively-have been well studied. However, electro...
Abstract The photo-excited triplet state of Zn-protoporphyrin IX located in the heme pocket human neuroglobin has been investigated by time-resolved EPR coupled to magnetophotoselection. protein matrix compared with model complex organic glass, considering both non-coordinating and coordinating solvent mixtures. plays an important role stabilizing coordination embedded chromophore, resulting a ...
The crystal structure of the title compound, [PtCl(2)(C(25)H(22)NPS)]·0.5CH(2)Cl(2), was determined to establish the coordination properties of the (phosphan-yl)benzyl-idene-methanamine ligand to platinum. In the unit cell two mol-ecules of cis-[PtCl(2)(C(25)H(22)NPS)] are accompanied by a dichloro-methane solvent mol-ecule. The square-planar Pt(2+) coordination sphere is slightly distorted wit...
During a Ru-catalyzed reaction of an olefin with an alkylidene moiety that leads to a metallacycle intermediate, the cis insertion of the olefin can occur from two different directions, namely side and bottom with respect to the phosphine or N-heterocyclic ligand (NHC), depending on the first or second generation Grubbs catalyst. Here, DFT calculations unravel to which extent the bottom coordin...
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