Inorganic Chemistry, Vol.34, No.22, 5401-5402, 1995
Complex Multinary Compounds from Molten Alkali-Metal Polyselenophosphate Fluxes - Layers and Chains in A(4)Ti(2)(P2Se9)(2)(P2Se7) and Atipse(5) (A=k, Rb) - Isolation of (P2Se9)(4-), a Flux Constituent Anion
The reaction of Ti with a molten mixture of A(2)Se/P2Se5/Se (A = K, Rb) at 490 degrees C produced the quaternary low dimensional compounds A(4)Ti(2)(P2Se9)(2)(P2Se7) and ATiPSe(5). The former is a lamellar compound while the latter is one-dimensional. When A = Cs, a ternary compound containing the discrete molecular anion of [P2Se9](4-) (made of two PSe4 subunits connected via a monoselenide) was obtained.