Sonochemical synthesis of tri-nuclear lead(II)-azido nano rods coordination polymer with 3,4,7,8-Tetramethyl-1,10-phenanthroline (cas 1660-93-1) (tmph): Crystal structure determination and preparation of nano lead(II) oxide
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Add time:09/09/2019 Source:sciencedirect.com
Preparation of rod-shaped nanostructure of a new 1D lead(II) tri nuclear coordination polymer containing the Pb2-(μ-N3)2 and Pb2-(μ-N3)(NO3) motifs [Pb3(tmph)4(μ-N3)5(μ-NO3)]n (1) where “tmph” is the abbreviation of 3,4,7,8-Tetramethyl-1,10-phenanthroline (cas 1660-93-1), using a sonochemical method is described. The new coordination polymer is characterized by scanning electron microscope (SEM), X-ray diffraction (XRD), elemental analysis and infrared spectroscopy. The single crystalline material is obtained using a heat gradient applied to a solution of the reagents. Single-crystal XRD analysis indicates three different lead(II) centers in the structure with coordination numbers of seven and eight with a holo and hemidirected coordination geometry. They also show that the chains interact with each other through π–π stacking interactions creating a 3D framework. PbO nanoparticles are obtained by thermolysis of 1 at 180 °C with oleic acid as a surfactant. Scanning electron microscopy (SEM) and transmission electron microscopy (TEM) confirm formation of PbO particles around 10–20 nm.
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- On the mechanism of formation and spectral properties of radical anions generated by the reduction of –[ReI(CO)3(5-nitro-1,10-phenanthroline)]+ and –[ReI(CO)3(3,4,7,8-Tetramethyl-1,10-phenanthroline (cas 1660-93-1))]+ pendants in poly-4-vinylpyridine polymers09/10/2019
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