alexa The crystal chemistry of the alkaline-earth apatites A(10)(PO(4))(6)Cu(x)O(y)(H)(z) (A = Ca, Sr and Ba).


Bioceramics Development and Applications

Author(s): Baikie T, Ng GM, Madhavi S, Pramana SS, Blake K,

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Abstract The crystal chemistry of the cuprate apatites A(I)(4)A(II)(6)(PO(4))(6)Cu(x)O(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 (Cu(2+)) but in the calcium and strontium analogues co-exists with minor Cu(3+). This is in contrast with a previous work where Cu(1+) and Cu(2+) were reported. This article was published in Dalton Trans and referenced in Bioceramics Development and Applications

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