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|Title: ||Crystal chemistry of the alkaline-earth apatites A(10)(PO4)(6)CuxOy(H)(z) (A = Ca, Sr and Ba).|
|Authors: ||Baikie, T|
Alkaline Earth Isotopes
|Issue Date: ||17-Jun-2009|
|Publisher: ||Royal Society of Chemistry|
|Citation: ||Baikie, T., Ng, G. M. H., Madhavi, S., Pramana, S. S., Blake, K., Elcombe, M., et al. (2009). Crystal chemistry of the alkaline-earth apatites A(10)(PO4)(6)CuxOy(H)(z) (A = Ca, Sr and Ba). Dalton Transactions(34), 6722-6726.|
|Abstract: ||The crystal chemistry of the cuprate apatites A(4)(I)A(6)(II)(PO4)(6)CuxOy(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 Cu1+ and Cu2+ were reported. © 2009, Royal Society of Chemistry|
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