The crystal chemistry of the alkaline-earth apatites A10(PO 4)6CuxOy(H)z (A = Ca, Sr and Ba)

Tom Baikie; George M.H. Ng; S. Madhavi; Stevin S. Pramana; Kevin Blake; Margaret Elcombe; T. J. White

doi:10.1039/b906639j

The crystal chemistry of the alkaline-earth apatites A₁₀(PO ₄)₆Cu_xO_y(H)_z (A = Ca, Sr and Ba)

Tom Baikie^*, George M.H. Ng, S. Madhavi, Stevin S. Pramana, Kevin Blake, Margaret Elcombe, T. J. White

^*Corresponding author for this work

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

45 Citations (Scopus)

Abstract

The crystal chemistry of the cuprate apatites A^I ₄A^II₆(PO₄)₆Cu _xO_y(H)_z (A = Ca, Sr and Ba) was investigated by powder X-ray (PXRD) and neutron diffraction (PND) and X-ray photoelectron spectroscopy (XPS). The refined crystal structures confirmed earlier X-ray diffraction studies that showed copper resides in the apatite channels and additionally, located hydrogen. For all materials copper is primarily divalent (Cu²⁺) but in the calcium and strontium analogues co-exists with minor Cu³⁺. This is in contrast with a previous work where Cu ¹⁺ and Cu²⁺ were reported.

Original language	English
Pages (from-to)	6722-6726
Number of pages	5
Journal	Dalton Transactions
Issue number	34
DOIs	https://doi.org/10.1039/b906639j
Publication status	Published - 2009
Externally published	Yes

ASJC Scopus Subject Areas

Inorganic Chemistry

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title = "The crystal chemistry of the alkaline-earth apatites A10(PO 4)6CuxOy(H)z (A = Ca, Sr and Ba)",

abstract = "The crystal chemistry of the cuprate apatites AI 4AII6(PO4)6Cu xOy(H)z (A = Ca, Sr and Ba) was investigated by powder X-ray (PXRD) and neutron diffraction (PND) and X-ray photoelectron spectroscopy (XPS). The refined crystal structures confirmed earlier X-ray diffraction studies that showed copper resides in the apatite channels and additionally, located hydrogen. For all materials copper is primarily divalent (Cu2+) but in the calcium and strontium analogues co-exists with minor Cu3+. This is in contrast with a previous work where Cu 1+ and Cu2+ were reported.",

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T1 - The crystal chemistry of the alkaline-earth apatites A10(PO 4)6CuxOy(H)z (A = Ca, Sr and Ba)

AU - Baikie, Tom

AU - Ng, George M.H.

AU - Madhavi, S.

AU - Pramana, Stevin S.

AU - Blake, Kevin

AU - Elcombe, Margaret

AU - White, T. J.

PY - 2009

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AB - The crystal chemistry of the cuprate apatites AI 4AII6(PO4)6Cu xOy(H)z (A = Ca, Sr and Ba) was investigated by powder X-ray (PXRD) and neutron diffraction (PND) and X-ray photoelectron spectroscopy (XPS). The refined crystal structures confirmed earlier X-ray diffraction studies that showed copper resides in the apatite channels and additionally, located hydrogen. For all materials copper is primarily divalent (Cu2+) but in the calcium and strontium analogues co-exists with minor Cu3+. This is in contrast with a previous work where Cu 1+ and Cu2+ were reported.

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The crystal chemistry of the alkaline-earth apatites A₁₀(PO ₄)₆Cu_xO_y(H)_z (A = Ca, Sr and Ba)

Abstract

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