CESIUM NICKEL(II) TRICHLORIDE, CSNICL3, AND TRICAESIUM NICKEL(II) PENTACHLORIDE, CS3NICL5

Authors
SASSMANNSHAUSEN M LUTZ HD
Citation
M. Sassmannshausen et Hd. Lutz, CESIUM NICKEL(II) TRICHLORIDE, CSNICL3, AND TRICAESIUM NICKEL(II) PENTACHLORIDE, CS3NICL5, Acta crystallographica. Section C, Crystal structure communications, 54, 1998, pp. 704-706
Citations number
18
Categorie Soggetti
Crystallography
Journal title
Acta crystallographica. Section C, Crystal structure communications → ACNP
ISSN journal
01082701
Volume
54
Year of publication
1998
Part
6
Pages
704 - 706
Database
ISI
SICI code
0108-2701(1998)54:<704:CNTCAT>2.0.ZU;2-8
Abstract
There are two congruently melting compounds in the CsCl-NiCl2 system: orange CsNiCl3 (absorption maximum 466 nm) and turquoise Cs3NiCl5 (654 nm). The different colours are caused by the different coordination p olyhedra of the nickel(II) ions. In Cs3NiCl5, which crystallizes in th e tetragonal space group I4/mcm, there are isolated NiCl42- tetrahedra , whereas in CsNiCl3, which crystallizes in the hexagonal space group P6(3)/mmc, the Ni2+ ions are octahedrally coordinated. These octahedra run parallel to [001] and share triangular faces.