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  Synthesis and Crystal Structure of {(NH4)<i>x</i>Co(3-x/2)}(H2O)2[BP2O8] center dot (1-x)H2O (x approximate to 0.5)

Schäfer, G., Carrillo-Cabrera, W., Schnelle, W., Borrmann, H., & Kniep, R. (2002). Synthesis and Crystal Structure of {(NH4)<i>x</i>Co(3-x/2)}(H2O)2[BP2O8] center dot (1-x)H2O (x approximate to 0.5). Zeitschrift für Anorganische und Allgemeine Chemie, 628(1), 289-294. doi:10.1002/1521-3749(200201)628:1<289:AID-ZAAC289>3.0.CO;2-H.

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 Creators:
Schäfer, G.1, Author           
Carrillo-Cabrera, W.2, Author           
Schnelle, W.3, Author           
Borrmann, H.4, Author           
Kniep, R.5, Author           
Affiliations:
1Max Planck Institute for Chemical Physics of Solids, Max Planck Society, ou_1863404              
2Chemical Metal Science, Max Planck Institute for Chemical Physics of Solids, Max Planck Society, ou_1863405              
3Walter Schnelle, Inorganic Chemistry, Max Planck Institute for Chemical Physics of Solids, Max Planck Society, ou_1863441              
4Horst Borrmann, Chemical Metal Science, Max Planck Institute for Chemical Physics of Solids, Max Planck Society, ou_1863410              
5Rüdiger Kniep, Inorganic Chemistry, Max Planck Institute for Chemical Physics of Solids, Max Planck Society, ou_1863437              

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Free keywords: boron; phosphorus; borophosphate; helical structures
 Abstract: A borophosphate hydrate with general composition {(NH4)(x)Co((3-x)/2)}(H2O)(2)[BP2O8].(1-x) H2O (xapproximate to0.5) was prepared under mild hydrothermal conditions (T=170degreesC). The crystal structure of the purple title compound was refined in space group P6(5) (no. 170) as a meroihedric twin (a=949.14 pm, c=1558.25 pm, R-1=0.037, wR(2)=0.092 for all data). According to preliminary X-ray investigations, vis-spectra, and magnetic susceptibility measurements, a second blue coloured variant exhibits a superstructure of the title compound with a change in coordination numbers around cobalt from six and five to six and four. Both phases show reversible de-/rehydration properties.

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Language(s): eng - English
 Dates: 2002-01
 Publication Status: Published in print
 Pages: -
 Publishing info: -
 Table of Contents: -
 Rev. Type: Peer
 Degree: -

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Title: Zeitschrift für Anorganische und Allgemeine Chemie
  Alternative Title : Z. Anorg. Allg. Chem.
Source Genre: Journal
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Pages: - Volume / Issue: 628 (1) Sequence Number: - Start / End Page: 289 - 294 Identifier: ISSN: 0044-2313