Synthesis, Structural, Thermal, and Electronic Properties of Palmierite-Related Double Molybdate ?-Cs2Pb(MoO4)2.

Title Synthesis, Structural, Thermal, and Electronic Properties of Palmierite-Related Double Molybdate ?-Cs2Pb(MoO4)2.
Authors S.F. Solodovnikov; V.V. Atuchin; Z.A. Solodovnikova; O.Y. Khyzhun; M.I. Danylenko; D.P. Pishchur; P.E. Plyusnin; A.M. Pugachev; T.A. Gavrilova; A.P. Yelisseyev; A.H. Reshak; Z.A. Alahmed; N.F. Habubi
Journal Inorg Chem
DOI 10.1021/acs.inorgchem.6b02653
Abstract

Cs2Pb(MoO4)2 crystals were prepared by crystallization from their own melt, and the crystal structure has been studied in detail. At 296 K, the molybdate crystallizes in the low-temperature ?-form and has a monoclinic palmierite-related superstructure (space group C2/m, a = 2.13755(13) nm, b = 1.23123(8) nm, c = 1.68024(10) nm, ? = 115.037(2)°, Z = 16) possessing the largest unit cell volume, 4.0066(4) nm(3), among lead-containing palmierites. The compound undergoes a distortive phase transition at 635 K and incongruently melts at 943 K. The electronic structure of ?-Cs2Pb(MoO4)2 was explored by using X-ray emission spectroscopy (XES) and X-ray photoelectron spectroscopy methods. For ?-Cs2Pb(MoO4)2, the photoelectron core-level and valence-band spectra and the XES band representing the energy distribution of Mo 4d and O 2p states were recorded. Our results allow one to conclude that the Mo 4d and O 2p states contribute mainly to the central part and at the top of the valence band, respectively, with also significant contributions throughout the whole valence-band region of the molybdate under consideration.

Citation S.F. Solodovnikov; V.V. Atuchin; Z.A. Solodovnikova; O.Y. Khyzhun; M.I. Danylenko; D.P. Pishchur; P.E. Plyusnin; A.M. Pugachev; T.A. Gavrilova; A.P. Yelisseyev; A.H. Reshak; Z.A. Alahmed; N.F. Habubi.Synthesis, Structural, Thermal, and Electronic Properties of Palmierite-Related Double Molybdate ?-Cs2Pb(MoO4)2.. Inorg Chem. 2017;56(6):32763286. doi:10.1021/acs.inorgchem.6b02653

Related Elements

Lead

82 Pb 207.200000000 Lead

Lead Bohr ModelSee more Lead products. Lead (atomic symbol: Pb, atomic number: 82) is a Block P, Group 14, Period 6 element with an atomic radius of 207.2. The number of electrons in each of Lead's shells is [2, 8, 18, 32, 18, 4] and its electron configuration is [Xe] 4f14 5d10 6s2 6p2. The lead atom has a radius of 175 pm and a Van der Waals radius of 202 pm. In its elemental form, lead has a metallic gray appearance. Lead occurs naturally as a mixture of four stable isotopes: 204Pb (1.48%), 206Pb (23.6%), 207Pb (22.6%), and 208Pb (52.3%). Elemental LeadLead is obtained mainly from galena (PbS) by a roasting process. Anglesite, cerussite, and minim are other common lead containing minerals. Lead does occur as a free element in nature, but it is rare. It is a dense, soft metal that is very resistant to corrosion and poorly conductive compared to other metals. Its density and low melting point make it useful in applications such as electrolysis and industrial materials.

Molybdenum

42 Mo 95.960000000 Molybdenum

See more Molybdenum products. Molybdenum (atomic symbol: Mo, atomic number: 42) is a Block D, Group 6, Period 5 element with an atomic weight of 95.96. Molybdenum Bohr ModelThe number of electrons in each of molybdenum's shells is [2, 8, 18, 13, 1] and its electron configuration is [Kr] 4d5 5s1. The molybdenum atom has a radius of 139 pm and a Van der Waals radius of 209 pm. In its elemental form, molybdenum has a gray metallic appearance. Molybdenum was discovered by Carl Wilhelm in 1778 and first isolated by Peter Jacob Hjelm in 1781. Molybdenum is the 54th most abundant element in the earth's crust. Elemental MolybdenumIt has the third highest melting point of any element, exceeded only by tungsten and tantalum. Molybdenum does not occur naturally as a free metal, it is found in various oxidation states in minerals. The primary commercial source of molybdenum is molybdenite, although it is also recovered as a byproduct of copper and tungsten mining. The origin of the name Molybdenum comes from the Greek word molubdos meaning lead.

Related Forms & Applications

Molybdates
Publish your research on the American Elements website