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EN
The [ReCl2(N2COPh)(2,3'-bpy)(PPh3)2] complex has been obtained in the reaction of [ReCl2(2-N2COPh-N',O)(PPh3)2] with an excess of 2,3'-bipyridyl. The [ReCl2(N2COPh)(2,3'-bpy)(PPh3)2] complex crystallizes in the triclinic space group P-1. The complex was characterized by IR, UV-VIS, and magnetical measurements. The geometries of the complex was optimized with the DFT method.
EN
Rhenium nitrido-complex [ReNBr2(PPh3)2] has been characterized by X-ray diffraction, IR and UV-Vis spectroscopies. The geometry optimization was carried out with the DFT method using B3LYP functional. The electronic spectrum was calculated with the TDDFT method.
EN
[ReBr3(py)3]0.42[ReBr2(NO)(py)3]0.58 (1), trans-[ReBr4(OPPh3)2] (2), [ReBr(NO)(dppe)2]Br (3) and orthorhombic polymorph of mer-cis- [Re(NO)Br3(OPPh3)2] (4) complexes have been synthesized by reactions of monoclinic polymorph of mer-cis-[Re(NO)Br3(OPPh3)2] with pyridine, bis(diphenylophosphino) ethane, 2,2_-bipyridine, 1,10-phenanthroline. The NO group in 1 and 4 is coordinated in a linear way. Due to nitrosyl/bromine compositional disorder, the shortening of Re-NO distance [1.68(5) A] and the elongation of N-O bond length [1.38(10) A] are observed in1. The N-O bond length in 4 is extremely short [0.94(1) A], which results probably from steric interactions of two mutually cis OPPh3 molecules and a large discrepancy of Re-O-P angle values.
EN
[ReOBr3(dppe)] (where dppe denotes Ph2PCH2CH2PPh2) reacts with gaseous nitric oxide in the presence of an acces of free PPh3 to give [ReBr3(NO)(dppe)0.60[ReBr4(dppe)]0.40, characterized by X-ray crystallography, IR, UV-Vis, and magnetochemical measurements. The coplex is a paramagnetic compound with magnetic moment 2.54 MB.
EN
A new rhenium nitrosyl complex [ReBr2(NO)(CO)(PPh3)2]*NO has been synthesized and characterized by X-ray diffraction, IR, UV-Vis and magnetochemical easurements. The Re atom is of six-coordinate distorted octahedral configuration and linear nitrosyl ligand is trans towards the bromine ligand and cis towards CO molecule.
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