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Thorium heptaphosphide

Chemical compound From Wikipedia, the free encyclopedia

Thorium heptaphosphide is a binary inorganic compound of thorium metal and phosphorus with the chemical formula ThP7.[2] This is the most phosphorus-rich binary compound of a tetravalent thorium.[3]

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Thorium heptaphosphide
Identifiers
3D model (JSmol)
  • InChI=1S/7P.Th/q;;;4*-1;+4
    Key: LNJLDCGWEAURNN-UHFFFAOYSA-N
  • [Th+4].[P-].[P-].[P-].[P-].[P].[P].[P]
Properties
P7Th
Molar mass 448.8540 g·mol−1
Appearance black rod-shaped crystals
Density 4.93 g/cm3[1]
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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Synthesis

Thorium heptaphosphide can be synthesized from the elements with addition of iodine at 830 K.[3][4]

Properties

Thorium heptaphosphide forms black rod-shaped crystals of orthorhombic crystal system.[1][4] It decomposes to Th2P11 at 650 K in vacuo.[3]

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