Synthesis and crystal structure of KMn2O(PO4)(HPO4)

Philip Lightfoot; Anthony K. Cheetham; Arthur W. Sleight

doi:10.1016/0022-4596(88)90116-8

Synthesis and crystal structure of KMn₂O(PO₄)(HPO₄)

Philip Lightfoot^*, Anthony K. Cheetham, Arthur W. Sleight

^*Corresponding author for this work

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

Abstract

KMn₂O(PO₄)(HPO₄) crystallizes in the monoclinic space group P2₁ m, with a = 6.226(1), b = 6.890(2), c = 8.809(1) Å, and β = 107.67(1)°. For Z = 2 the calculated density is 3.282 g cm^-3. Crystals were obtained hydrothermally, from a mixture of Mn₃O₄, KH₂PO₄, and H₂O, by slow cooling from 673 K under an external nitrogen pressure of 3 kbar. The structure was solved by Patterson and Fourier methods and refined to final agreement factors R = 0.024, R_w = 0.027. The structure is composed of zigzag chains of edge sharing MnO₆ octahedra linked together by PO₄ tetrahedra to form sheets parallel to the bc plane. These sheets are linked to adjacent ones via additional PO₄ tetrahedra and hydrogen bonds. The resulting framework encloses channels running parallel to the [011] direction in which the potassium resides.

Original language	English
Pages (from-to)	325-329
Number of pages	5
Journal	Journal of Solid State Chemistry
Volume	73
Issue number	2
DOIs	https://doi.org/10.1016/0022-4596(88)90116-8
Publication status	Published - 1 Jan 1988

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@article{2e47dfe651894a4ca00f06f052f117fd,

title = "Synthesis and crystal structure of KMn2O(PO4)(HPO4)",

abstract = "KMn2O(PO4)(HPO4) crystallizes in the monoclinic space group P21 m, with a = 6.226(1), b = 6.890(2), c = 8.809(1) {\AA}, and β = 107.67(1)°. For Z = 2 the calculated density is 3.282 g cm-3. Crystals were obtained hydrothermally, from a mixture of Mn3O4, KH2PO4, and H2O, by slow cooling from 673 K under an external nitrogen pressure of 3 kbar. The structure was solved by Patterson and Fourier methods and refined to final agreement factors R = 0.024, Rw = 0.027. The structure is composed of zigzag chains of edge sharing MnO6 octahedra linked together by PO4 tetrahedra to form sheets parallel to the bc plane. These sheets are linked to adjacent ones via additional PO4 tetrahedra and hydrogen bonds. The resulting framework encloses channels running parallel to the [011] direction in which the potassium resides.",

author = "Philip Lightfoot and Cheetham, \{Anthony K.\} and Sleight, \{Arthur W.\}",

year = "1988",

month = jan,

day = "1",

doi = "10.1016/0022-4596(88)90116-8",

language = "English",

volume = "73",

pages = "325--329",

journal = "Journal of Solid State Chemistry",

issn = "0022-4596",

publisher = "Academic Press/Elsevier ",

number = "2",

}

TY - JOUR

T1 - Synthesis and crystal structure of KMn2O(PO4)(HPO4)

AU - Lightfoot, Philip

AU - Cheetham, Anthony K.

AU - Sleight, Arthur W.

PY - 1988/1/1

Y1 - 1988/1/1

N2 - KMn2O(PO4)(HPO4) crystallizes in the monoclinic space group P21 m, with a = 6.226(1), b = 6.890(2), c = 8.809(1) Å, and β = 107.67(1)°. For Z = 2 the calculated density is 3.282 g cm-3. Crystals were obtained hydrothermally, from a mixture of Mn3O4, KH2PO4, and H2O, by slow cooling from 673 K under an external nitrogen pressure of 3 kbar. The structure was solved by Patterson and Fourier methods and refined to final agreement factors R = 0.024, Rw = 0.027. The structure is composed of zigzag chains of edge sharing MnO6 octahedra linked together by PO4 tetrahedra to form sheets parallel to the bc plane. These sheets are linked to adjacent ones via additional PO4 tetrahedra and hydrogen bonds. The resulting framework encloses channels running parallel to the [011] direction in which the potassium resides.

AB - KMn2O(PO4)(HPO4) crystallizes in the monoclinic space group P21 m, with a = 6.226(1), b = 6.890(2), c = 8.809(1) Å, and β = 107.67(1)°. For Z = 2 the calculated density is 3.282 g cm-3. Crystals were obtained hydrothermally, from a mixture of Mn3O4, KH2PO4, and H2O, by slow cooling from 673 K under an external nitrogen pressure of 3 kbar. The structure was solved by Patterson and Fourier methods and refined to final agreement factors R = 0.024, Rw = 0.027. The structure is composed of zigzag chains of edge sharing MnO6 octahedra linked together by PO4 tetrahedra to form sheets parallel to the bc plane. These sheets are linked to adjacent ones via additional PO4 tetrahedra and hydrogen bonds. The resulting framework encloses channels running parallel to the [011] direction in which the potassium resides.

UR - https://www.scopus.com/pages/publications/0023995049

U2 - 10.1016/0022-4596(88)90116-8

DO - 10.1016/0022-4596(88)90116-8

M3 - Article

AN - SCOPUS:0023995049

SN - 0022-4596

VL - 73

SP - 325

EP - 329

JO - Journal of Solid State Chemistry

JF - Journal of Solid State Chemistry

IS - 2

ER -

Synthesis and crystal structure of KMn₂O(PO₄)(HPO₄)

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