Structural Characterization of Cadmium Hexacyanometallates(II) and Related Complexes
Cadmium hexacyanometallates (II) crystallize in the same monoclinic cell (space group C52 h−P21/ n) reported for the analogs of manganous complexes. In that monoclinic framework, two outer cations (M c Mn2+ or Cd2+) of neighboring structural units M2[LII(CN)6], (L c FeII, RuII, OsII), are linked by...
| Autores: | , , , , |
|---|---|
| Formato: | artículo |
| Estado: | Versión publicada |
| Fecha de publicación: | 2000 |
| País: | México |
| Recursos: | Instituto Politécnico Nacional |
| Repositorio: | Repositorio Digital del IPN |
| OAI Identifier: | oai:www.repositoriodigital.ipn.mx:123456789/11695 |
| Acesso em linha: | http://hdl.handle.net/123456789/1234 http://www.repositoriodigital.ipn.mx/handle/123456789/11695 |
| Access Level: | acceso abierto |
| Palavra-chave: | Hexacyanometallate X-ray diffraction IR spectra Raman spectra M¨ossbauer spectra |
| Resumo: | Cadmium hexacyanometallates (II) crystallize in the same monoclinic cell (space group C52 h−P21/ n) reported for the analogs of manganous complexes. In that monoclinic framework, two outer cations (M c Mn2+ or Cd2+) of neighboring structural units M2[LII(CN)6], (L c FeII, RuII, OsII), are linked by two common water molecules. On heating above 1008C, these water bridges are removed. In dehydrated complexes, the outer cation (M) remains linked to only three CN ligands. The loss of aquo-ligands induces a remarkable p-back donation from the inner cation (L) to CN ligands, which was studied using IR, Raman, and M¨ossbauer spectroscopies. |
|---|