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

doi:10.1107/S0108270105036656

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 journal › Article › peer-review

10 Scopus citations

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 language	English
Pages (from-to)	i120-i124
Journal	Acta Crystallographica Section C: Crystal Structure Communications
Volume	61
Issue number	12
DOIs	https://doi.org/10.1107/S0108270105036656
State	Published - Dec 2005
Externally published	Yes

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@article{d9f87c8d26db45d6bf261ef8c59bdf84,

title = "K2M(H2P2O7)2 · 2H2O (M = Ni, Cu, Zn): Orthorhombic forms and Raman spectra",

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.",

author = "Rachid Essehli and \{El Bali\}, Brahim and Tahiri, \{Aziz Alaoui\} and Mohammed Lachkar and Bouchaib Manoun and Michal Du{\v s}ek and Karla Fejfarova",

year = "2005",

month = dec,

doi = "10.1107/S0108270105036656",

language = "English",

volume = "61",

pages = "i120--i124",

journal = "Acta Crystallographica Section C: Crystal Structure Communications",

issn = "0108-2701",

number = "12",

}

TY - JOUR

T1 - K2M(H2P2O7)2 · 2H2O (M = Ni, Cu, Zn)

T2 - Orthorhombic forms and Raman spectra

AU - Essehli, Rachid

AU - El Bali, Brahim

AU - Tahiri, Aziz Alaoui

AU - Lachkar, Mohammed

AU - Manoun, Bouchaib

AU - Dušek, Michal

AU - Fejfarova, Karla

PY - 2005/12

Y1 - 2005/12

N2 - 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.

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.

UR - https://www.scopus.com/pages/publications/30744455513

U2 - 10.1107/S0108270105036656

DO - 10.1107/S0108270105036656

M3 - Article

AN - SCOPUS:30744455513

SN - 0108-2701

VL - 61

SP - i120-i124

JO - Acta Crystallographica Section C: Crystal Structure Communications

JF - Acta Crystallographica Section C: Crystal Structure Communications

IS - 12

ER -

K₂M(H₂P₂O₇)₂ · 2H₂O (M = Ni, Cu, Zn): Orthorhombic forms and Raman spectra

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