Synthesis and structure of NH4CoPO46H2O

Mostapha Touaiher; Mohammed Bettach; Khalil Benkhouja; Mohammed Zahir; Miguel A.G. Aranda; Sebastián Bruque

doi:10.1016/S0151-9107(01)80060-X

Synthesis and structure of NH₄CoPO₄6H₂O

Mostapha Touaiher
, Mohammed Bettach
, Khalil Benkhouja
, Mohammed Zahir
, Miguel A.G. Aranda
, Sebastián Bruque^*

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

10 Scopus citations

Abstract

NH₄CoPO₄6H₂O has been synthesized from CoSO₄7H₂O and (NH₄)₂HPO₄ solutions at a pH controlled by an aqueous ammonia solution. The structure of NH₄CoPO₄6H₂O was determined by Rietveld refinement of X-ray laboratory powder diffraction data [s.g. Pmn2, with a=6.9403(2) Å, b=6.1457(2) Å, c=11.2190(1) Å, V=478.53 Å³, Z=2, and Vat-no-H=18.4 Å³/at]. The final R-factors were R_WP=14.2 %, R_F=8.0 %. The framework has isolated Co(OH₂)₆²⁺ octahedra linked to regular PO₄^3- and NH₄⁺ tetrahedra by electrostatic interactions and hydrogen bonds. IR data and the thermal behaviour of this compound are given and discussed on the basis of its crystal structure.

Original language	English
Pages (from-to)	49-54
Number of pages	6
Journal	Annales de Chimie: Science des Materiaux
Volume	26
Issue number	3
DOIs	https://doi.org/10.1016/S0151-9107(01)80060-X
State	Published - 2001
Externally published	Yes

ASJC Scopus subject areas

Materials Chemistry

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10.1016/S0151-9107(01)80060-X

Cite this

@article{3fd5b13a89ae4049bb161198c9eced85,

title = "Synthesis and structure of NH4CoPO46H2O",

abstract = "NH4CoPO46H2O has been synthesized from CoSO47H2O and (NH4)2HPO4 solutions at a pH controlled by an aqueous ammonia solution. The structure of NH4CoPO46H2O was determined by Rietveld refinement of X-ray laboratory powder diffraction data [s.g. Pmn2, with a=6.9403(2) {\AA}, b=6.1457(2) {\AA}, c=11.2190(1) {\AA}, V=478.53 {\AA}3, Z=2, and Vat-no-H=18.4 {\AA}3/at]. The final R-factors were RWP=14.2 \%, RF=8.0 \%. The framework has isolated Co(OH2)62+ octahedra linked to regular PO43- and NH4+ tetrahedra by electrostatic interactions and hydrogen bonds. IR data and the thermal behaviour of this compound are given and discussed on the basis of its crystal structure.",

author = "Mostapha Touaiher and Mohammed Bettach and Khalil Benkhouja and Mohammed Zahir and Aranda, \{Miguel A.G.\} and Sebasti{\'a}n Bruque",

year = "2001",

doi = "10.1016/S0151-9107(01)80060-X",

language = "English",

volume = "26",

pages = "49--54",

journal = "Annales de Chimie: Science des Materiaux",

issn = "0151-9107",

publisher = "International Information and Engineering Technology Association",

number = "3",

}

TY - JOUR

T1 - Synthesis and structure of NH4CoPO46H2O

AU - Touaiher, Mostapha

AU - Bettach, Mohammed

AU - Benkhouja, Khalil

AU - Zahir, Mohammed

AU - Aranda, Miguel A.G.

AU - Bruque, Sebastián

PY - 2001

Y1 - 2001

N2 - NH4CoPO46H2O has been synthesized from CoSO47H2O and (NH4)2HPO4 solutions at a pH controlled by an aqueous ammonia solution. The structure of NH4CoPO46H2O was determined by Rietveld refinement of X-ray laboratory powder diffraction data [s.g. Pmn2, with a=6.9403(2) Å, b=6.1457(2) Å, c=11.2190(1) Å, V=478.53 Å3, Z=2, and Vat-no-H=18.4 Å3/at]. The final R-factors were RWP=14.2 %, RF=8.0 %. The framework has isolated Co(OH2)62+ octahedra linked to regular PO43- and NH4+ tetrahedra by electrostatic interactions and hydrogen bonds. IR data and the thermal behaviour of this compound are given and discussed on the basis of its crystal structure.

AB - NH4CoPO46H2O has been synthesized from CoSO47H2O and (NH4)2HPO4 solutions at a pH controlled by an aqueous ammonia solution. The structure of NH4CoPO46H2O was determined by Rietveld refinement of X-ray laboratory powder diffraction data [s.g. Pmn2, with a=6.9403(2) Å, b=6.1457(2) Å, c=11.2190(1) Å, V=478.53 Å3, Z=2, and Vat-no-H=18.4 Å3/at]. The final R-factors were RWP=14.2 %, RF=8.0 %. The framework has isolated Co(OH2)62+ octahedra linked to regular PO43- and NH4+ tetrahedra by electrostatic interactions and hydrogen bonds. IR data and the thermal behaviour of this compound are given and discussed on the basis of its crystal structure.

UR - https://www.scopus.com/pages/publications/0034950836

U2 - 10.1016/S0151-9107(01)80060-X

DO - 10.1016/S0151-9107(01)80060-X

M3 - Article

AN - SCOPUS:0034950836

SN - 0151-9107

VL - 26

SP - 49

EP - 54

JO - Annales de Chimie: Science des Materiaux

JF - Annales de Chimie: Science des Materiaux

IS - 3