K2M(H2P2O7)2 · 2H2O (M = Ni, Cu, Zn)

Orthorhombic forms and Raman spectra

Rachid Essehli, Brahim El Bali, Aziz Alaoui Tahiri, Mohammed Lachkar, Bouchaib Manoun, Michal Dušek, Karla Fejfarova

Research output: Contribution to journalArticle

4 Citations (Scopus)

Abstract

The crystal structures of three isotypic orthorhombic dihydrogendiphosphates, namely dipotassium copper(II)/nickel(II)/zinc(II) bis(dihydrogendiphosphate) dihydrate, K2M(H2P 2O7)2·2H2O (M = Cu, Ni and Zn), have been refined from single-crystal data. The M2+ and K + cations are located at sites of m symmetry, and the P atoms occupy general positions. These compounds also exist in triclinic forms with very similar structural features. The structures of both forms are compared, as well as the geometry of the MO6 octahedron, which is considerably elongated towards the water molecules for M = Ni and Cu. Such elongation has not been observed among the other representatives of the family. A Raman study of the whole series K2M(H2P2O7) 2·2H2O (M = Mn, Co, Ni, Cu, Zn and Mg) is reported.

Original languageEnglish
JournalActa Crystallographica Section C: Crystal Structure Communications
Volume61
Issue number12
DOIs
Publication statusPublished - Dec 2005
Externally publishedYes

Fingerprint

Nickel
elongation
Cations
Raman scattering
Zinc
Copper
Elongation
zinc
Crystal structure
Single crystals
nickel
Raman spectra
cations
copper
Atoms
crystal structure
Molecules
Geometry
Water
single crystals

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Structural Biology

Cite this

K2M(H2P2O7)2 · 2H2O (M = Ni, Cu, Zn) : Orthorhombic forms and Raman spectra. / Essehli, Rachid; El Bali, Brahim; Tahiri, Aziz Alaoui; Lachkar, Mohammed; Manoun, Bouchaib; Dušek, Michal; Fejfarova, Karla.

In: Acta Crystallographica Section C: Crystal Structure Communications, Vol. 61, No. 12, 12.2005.

Research output: Contribution to journalArticle

Essehli, Rachid ; El Bali, Brahim ; Tahiri, Aziz Alaoui ; Lachkar, Mohammed ; Manoun, Bouchaib ; Dušek, Michal ; Fejfarova, Karla. / K2M(H2P2O7)2 · 2H2O (M = Ni, Cu, Zn) : Orthorhombic forms and Raman spectra. In: Acta Crystallographica Section C: Crystal Structure Communications. 2005 ; Vol. 61, No. 12.
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AU - Essehli, Rachid

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AU - Tahiri, Aziz Alaoui

AU - Lachkar, Mohammed

AU - Manoun, Bouchaib

AU - Dušek, Michal

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AB - The crystal structures of three isotypic orthorhombic dihydrogendiphosphates, namely dipotassium copper(II)/nickel(II)/zinc(II) bis(dihydrogendiphosphate) dihydrate, K2M(H2P 2O7)2·2H2O (M = Cu, Ni and Zn), have been refined from single-crystal data. The M2+ and K + cations are located at sites of m symmetry, and the P atoms occupy general positions. These compounds also exist in triclinic forms with very similar structural features. The structures of both forms are compared, as well as the geometry of the MO6 octahedron, which is considerably elongated towards the water molecules for M = Ni and Cu. Such elongation has not been observed among the other representatives of the family. A Raman study of the whole series K2M(H2P2O7) 2·2H2O (M = Mn, Co, Ni, Cu, Zn and Mg) is reported.

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