Solvothermal Synthesis and Structure of a New Selenium-Rich Selenophosphate K3PSe4·2Se6
- 25 January 2002
- journal article
- research article
- Published by American Chemical Society (ACS) in Inorganic Chemistry
- Vol. 41 (4), 640-642
- https://doi.org/10.1021/ic015602d
Abstract
The compound K3PSe4·2Se6 was synthesized at 110 °C via solventothermal techniques from binary starting materials and Se in acetonitrile. The compound crystallizes in the space group Fd3̄ of the cubic system with eight formula units in a cell with a dimension of a = 16.415(2) Å at T = 193 K. The structure contains an unusual intermixing of ionic and uncharged species. The selenophosphate tetrahedral trianions PSe43- are surrounded by potassium cations; other potassium cations in the structure are coordinated to 12 selenium atoms from four Se6 rings in a tetrahedral arrangement. There are no short contacts between adjacent selenium rings. Heating the same reaction mixture to 160 °C results in the formation of only needles of trigonal selenium.This publication has 13 references indexed in Scilit:
- Cs2CuP3S9: A Chiral Compound with Screw HelicesJournal of Solid State Chemistry, 2000
- RbCu1.2Ag3.8Se3 and Cs2Cu2Sb2Se5: Novel Quaternary Intermetallics Synthesized from Superheated Organic MediaJournal of Solid State Chemistry, 1999
- A2CuP3S9 (A = K, Rb), Cs2Cu2P2S6, and K3CuP2S7: New Phases from the Dissolution of Copper in Molten Polythiophosphate FluxesChemistry of Materials, 1998
- New directions in synthetic solid state chemistry: chalcophosphate salt fluxes for discovery of new multinary solidsCurrent Opinion in Solid State and Materials Science, 1997
- Stabilization of U5+ in Rb4U4P4Se26. An Actinide Compound with a Mixed Selenophosphate/Polyselenide Framework and Ion-Exchange PropertiesJournal of the American Chemical Society, 1997
- Solventothermal Synthesis of Solid‐State ChalcogenidometalatesAngewandte Chemie International Edition in English, 1997
- Synthesis, Characterization, and Bonding of Two New Heteropolychalcogenides: α-CsCu(SxSe4-x) and CsCu(SxSe6-x)Inorganic Chemistry, 1996
- Hydrothermal Synthesis of a Novel Se12 Ring in[{(NH4)2[Mo3S11.72Se1.28]}2[Se12]]Angewandte Chemie International Edition in English, 1995
- Synthesis in Molten Alkali Metal Polyselenophosphate Fluxes: A New Family of Transition Metal Selenophosphate Compounds, A2MP2Se6 (A = K, Rb, Cs; M = Mn, Fe) and A2M'2P2Se6 (A = K, Cs; M' = Cu, Ag)Inorganic Chemistry, 1995
- Refinement of the crystal structure of α-monoclinic SeActa Crystallographica Section B: Structural Science, Crystal Engineering and Materials, 1972