Synthesis Of Cs Research Articles

Hydrothermal synthesis, structure, and sorption properties of Cs(H 3O)[Mo 2O 2(PO 4) 2(HPO 4)

Yellow plates of Cs(H 3O)[Mo 2O 2(PO 4) 2(HPO 4)], (1), obtained in 60% yield from the reaction of Cs 2MoO 4, Mo, H 3PO 4, and H 2O in a mole ratio of 5:1:30:57 for 24 hrs at 200°C, crystallize in the monoclinic space group P2 1 a with a = 9.166(4), b = 9.073(2), c = 15.808(3)Å, β = 96.85°, V = 1305(1)Å 3, Z = 4, and R( R w ) = 0.087(0.085). The structure has MoOPO 4-like layers held together with HPO 4 groups and is structurally similar to (VO) 2(SO 4) 2(H 2SO 4). The interlamellar space is compartmentalized into tunnels containing one-dimensional H-bonded strings of HPO 4 groups alternating with strings of Cs + and H 3O + cations. It is possible to remove water from the structure in a reversible manner as shown from water absorption isotherms. This same composition framework was prepared in a different crystal system and with a different cation by Clearfield and Peascoe (see J. Solid State Chem. 95(1), 83 (1991)).

ChemInform Abstract: Low Temperature Liquid Phase Fluorination of Pentafluorophenyl Element Compounds. Synthesis and Properties of (C6F5)3AsF2, (C6F5)3SbF2, (C6F5)2SeF2, (C6F5)2SeO, C6F5TeF3, and Cs((C6F5)3EF3) (E = As, Sb).

AbstractThe polyarylarsenic(antimony or selenium) difluorides (II), (IV), (VI), and the tellurium trifluoride (IX) are prepared by oxidative or metathetic fluorination reactions.

Synthesis, Structure, and Stability of Cs4ZrO4

AbstractThe colorless Cs4ZrO4 is obtained from the reaction of stoichiometric proportions of Cs, CsO2, and finely divided ZrO2 in a sealed Ag container at 400–650°C for several days. Regrinding and re‐reaction provide a single phase sample. The compound is monoclinic (P21/c, Z = 4, a = 7.172 (1) Å, b = 19.907 (1) Å, c = 7.157 (1) Å, β = 113.1 (1)Å, R = 0.032) and isostructural with Cs4PbO4, with isolated ZrO44− tetrahedra (d(Zr–O) = 1.97 Å). The compound decomposes to Cs2ZrO3 (a) in the presence of excess oxygen or CsO2, (b) in high vacuum near 275°C, or (c) in a sealed container at about 730 ± 10°C.