7758-95-4Relevant articles and documents
Reactions of tin and lead with tricarbonylcyclopentadienylmolybdenum(II) and tricarbonylcyclopentadienyltungsten(II) chlorides
Piskunov,Maslennikov,Spirina,Maslennikov,Artemov
, p. 65 - 67 (2002)
Tin was oxidized with tricarbonylcyclopentadienylmolybdenum and tricarbonylcyclopentadienyl-tungsten chlorides to obtain polynuclear organometallic compounds [η5-C5H5M(CO) 3]2SnCl2 (M = Mo,
Thermal transformation of 1D-Pb(en)2Cl2to 3D-PbCl2 via 2D-Pb(en)Cl2and their substantial modification of the coordination environment on Pb(II)
Cho, Yoonsuk,Kim, Seonhong,Pyo, Seugmoon,Park, Yong Sun,Kim, Seung-Joo,Yun, Hoseop,Do, Junghwan
, p. 2105 - 2110 (2010)
The solvothermal synthesis and crystal structures of two new lead(II) compounds, bis(ethylenediamine)lead(II) chloride, Pb(en)2Cl 2 1 and mono(ethylenediamine)lead(II) chloride, Pb(en)Cl2 2, are reported. A detailed comparison of the two structures is given. In 1, the Pb(II) center is coordinated by two chlorine atoms and four nitrogen atoms from three en ligands, which act as either chelating or bridging ligands, allowing links to other Pb(II) centers. This creates an infinite linear chain of Pb(Cn)2Cl2. In 2, the Pb(II) center is chelated by one en ligand and is coordinated by six chlorine atoms, including two unusually weak Pb-Cl bonds (>3.5?) connected through μ2- and μ4-Cl to build a neutral layer of Pb(en)Cl2 units. Complex 1 contains a hemidirected Pb(II), while complex 2 has a (pseudo-)hemidirected Pb(II). TGA and high-temperature controlled powder-XRD studies show that compound 1 decomposes to compound 2 near 150°C, and finally to PbCl2 above 320°C.
Ba6BO3Cl9and Pb6BO4Cl7: structural insights intoortho-borates with uncondensed BO4tetrahedra
Li, Wei,Wu, Hongping,Yu, Hongwei,Hu, Zhanggui,Wang, Jiyang,Wu, Yicheng
, p. 6086 - 6089 (2020)
Two new halogen-richortho-borates, Ba6BO3Cl9and Pb6BO4Cl7, were synthesized and characterized. Interestingly, Pb6BO4Cl7contains rare uncondensed BO4/s
Molecular Structures of Monomeric Gallium Trichloride, Indium Trichloride and Lead Tetrachloride by Gas Electron Diffraction
Haaland, Arne,Hammel, Andreas,Martinsen, Kjell-Gunnar,Tremmel, Janos,Volden, Hans Vidar
, p. 2209 - 2214 (1992)
Gas electron diffraction data for monomeric GaCl3, monomeric InCl3 and PbCl4 have been recorded with nozzle temperatures of about 380, 480 and 20 deg C respectively.The data for GaCl3 and InCl3 are consistent with equilibrium structures of D3h
A Monoaryllead Trichloride That Resists Reductive Elimination
Olaru, Marian,Kather, Ralf,Hupf, Emanuel,Lork, Enno,Mebs, Stefan,Beckmann, Jens
, (2018)
Transmetallation of Pb(OAc)4 with R2Hg (1), followed by treatment with HCl in Et2O, provided RPbCl3 (2), the first kinetically stabilized monoorganolead trihalide that resists reductive elimination under ambient
Organized assemblies of lead(II) complexes of a tetraiminodiphenol macrocyclic ligand: Manifestation of weak metal-anion interactions and the directional influence of anions
Dutta, Bula,Adhikary, Bibhutosh,Bag, Pradip,Floerke, Ulrich,Nag, Kamalaksha
, p. 2760 - 2767 (2002)
The syntheses and crystal structures of the lead(II) complexes [Pb(LH2)(ClO4)][ClO4], [Pb(LH2)(NO3)2] and [Pb2L(NO3)2] of the tetraiminodiphenol macrocyclic ligand (H2L) derived from a [2+2] condensation reaction between 2,6-diformyl-4-methylphenol and 1,3-diaminopropane are reported. In the mononuclear complexes, the two uncoordinated imino nitrogens are protonated and are hydrogen bonded to the phenolate oxygens. A supramolecular assembly occurs for [Pb(LH2)(ClO4)][ClO4], due to weak interactions between the metal and three oxygen atoms of three different symmetry-related perchlorates, thereby forming a hexameric species with a propeller structure. [Pb(LH2)(NO3)2], however, is a monomer with normal bidentate binding modes for the nitrates. By contrast, [Pb2L(NO3)2] exhibits a 2-D structural network comprising parallel chains from two independent [Pb2L]2+ units, to which the nitrate anions are associated rather unconventionally: one oxygen is coordinated to two symmetry-related metal centres, another oxygen to a single lead, while the third oxygen remains free. The structural features of the complexes in solution have been investigated by 1H NMR spectroscopy.
The synthesis, characterization, and theoretical analysis of (NH4)3PbCl5
Zhu, Liang,Jin, Wenqi,Yang, Zhihua,Yang, Yun,Pan, Shilie
, p. 2038 - 2043 (2021)
A new compound, namely (NH4)3PbCl5, has been synthesized via a low-temperature molten salt method in a closed system. It crystallizes in the orthorhombicPnma(No. 62) space group. The crystal structure of (NH4)3PbCl5features a distinct three-dimensional network constructed via hydrogen bonds that exist between ammonium and chloride anions. The UV-Vis-NIR diffuse reflectance spectrum displays a short UV cutoff edge at about 256 nm. Besides, the thermal behavior (TG and DSC) was also analyzed. To better understand the structure-property relationships of (NH4)3PbCl5, theoretical calculations based on density functional theory were also performed. The result shows that the birefringence is expected to be about 0.050 at 1064 nm, and the bandgap is about 4.45 eV, which is consistent with the experimental result.
The first salt of an isolated pentachloroplumbate(II) trianion
Kalf, Irmgard,Englert, Ulli
, p. m129-m131 (2006)
The title compound, tris(cyclohexane-1,2-diamine-κ2N, N′)-cobalt pentachloroplumbate sesquihydrate, [Co(C6H 14N2)3]-[PbCl5]·1.5H 2O, crystallizes in the monoclinic space group C2/c, with a tricationic cobalt complex, a pentachloroplumbate trianion, one water molecule in a general position and a second water molecule on a crystallographic twofold axis. The compound is the first example of an isolated [PbCl5] 3- moiety; the Pb atom is coordinated in a square-pyramidal fashion, with four longer bonds to Cl atoms in the basal plane and a shorter distance to the apex. The ionic constituents and the solvent molecules form a three-dimensional network of hydrogen bonds.
FCC-HCP phase boundary in lead
Kuznetsov,Dmitriev,Dubrovinsky,Prakapenka,Weber
, p. 125 - 127 (2002)
The temperature evolution of fcc-to-hcp transformation in lead metal was studied and pressure-temperature equation of state for fcc and hcp phases up to 800 K and 40 GPa was determined. Polycrystalline lead was studied in extremely heated, gasketed diamond anvil cell. In situ high-pressure-high-temperature data were obtained at the ID-30 beam line by angle dispersive X-ray diffraction techniques employing monochromatic X-radiation. An unexpected interaction of lead with sodium chloride surrounded the samples and significant reduction of the alloying temperature with gold was observed.
Kinetic Study of the Reactions between Lead Metal and Hydrogen Bromide and Hydrogen Chloride
Harrison, Philip G.,Holt, Grenville
, p. 1027 - 1032 (1992)
The kinetic of the reactions between gaseous hydrogen bromide and hydrogen chloride and microparticulate lead metal have been investigated by gravimetric methods in the temperature ranges 427-514 K and 403-503 K, respectively.In both cases there is an initial rapid reaction to form a coherent, non-porous layer of lead(II) halide.The reaction of HBr with lead metal is diffusion controlled over the whole extent of reaction at temperatures of a porous open structure.Parabolic rate constants vary from 0.232 * 10-6 s-1 at 403 K to 3.63 * 10-6 s-1 at 503 K, and phase-boundary rate constants from 0.67 * 10-5 s-1 at 403 K to 1.79 * 10-5 s-1 at 503 K.Activation energies have been evaluated to be 20.9 kJ mol-1 (initial reaction), 53.9 kJ mol-1 (diffusion-controlled regime) and 31.1 kJ mol-1 (phase boundary-controlled regime).Diffusion-controlled parabolic kinetics are observed over a wide range of HBr pressures (0.47-10.5 kN m-2) at 473 K, and phase-boundary kinetics do not appear to operate even at higher extents of reaction at the higher pressures.Both the initial rates and the parabolic rate constants increase with increasing pressure of HBr.The reaction of HCl with lead metal was also found to proceed according to parabolic kinetics with rate constants varying from 0.112 * 10-6 s-1 at 427 K to 0.610 * 10-6 s-1 at 514 K with an activation energy of 30.2 kJ mol-1.The rate-determing process in the regime of parabolic kinetics is considered to be anion diffusion.
