Données cristallographiques sur l'hexamétaphosphate de cuivre–lithium, Cu₂Li₂P₆O₁₈

Abstract

The chemical preparation of Cu2Li2P6O18 is described. This hexametaphosphate has a triclinic unit cell with a = 9.485, b = 9.419, c = 9.379 Å, α = 111.73, β = 106.25, γ = 106.80°. The space group is P.

Synthesis and crystal structure of a new inorganic – organic complex: (4‐ClC7H6NH3)9[Nd(P6O18)2]·9H2O

“…The crystal structure of (4-ClC 7 H 6 NH 3 ) 9 [Nd(P 6 O 18 ) 2 ].9H 2 O is characterized by a long distance 10.48 Å between the nearest neighbour Neodyme cations which never exceed 6 Å in the known Nd compounds. This long distance Nd-Nd can be explained by the Nd coordination with two voluminous ligands P 6 O 18 .…”

“…Synthesis The title compound, (4-ClC 7 H 6 NH 3 ) 9 [Nd(P 6 O 18 ) 2 ].9H 2 O has been prepared in two steps. In the first one, a concentrated solution of cyclohexaphosphoric acid was prepared by passing a solution of Li 6 P 6 O 18 through an ion exchange resin in its H-state (Amberlite IR 120).…”