J. G. White
1976
Citations
0
Influential Citations
44
Citations
Journal
Inorganica Chimica Acta
Abstract
Abstract The crystal structure of europium tris[4,4,4-trifluoro-1-(2-thienyl)-1,3 butanedione] dihydrate has been determined from visually estimated intensity data for 1444 independent reflections. The crystals are monoclinic, space group P2s1/c with 4 molecules per unit cell. The cell dimensions are a = 11.40(2) A, b = 22.40(3) A, c = 13.72(2)A, β = 105.0(1)°. The europium atoms are each coordinated by 8 oxygen atoms arranged at the vertices of an archimedean antiprism. One β-diketone ,group has its oxygen atoms at the adjacent corners of one square while the other two groups both have on oxygen atom at a corner of each square. Two water molecules at diagonally opposite corners of one square complete the coordination. Due to a slow decomposition of the crystals the X-ray data was not complete or accurate enough to give accurate atomic positions and only the general outline of the molecular geometry can be discussed.