Solid-state P-31 NMR study of octacalcium phosphate incorporated with succinate

Octacalcium phosphate (OCP) is an important model compound in the study of biomineralization. The octacalcium phosphate-succinate (OCPS) compound is prepared and characterized by (31)P solid-state NMR spectroscopy. Taking advantage of the fact that the crystal structures of OCP and OCPS are very sim...

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Bibliographic Details
Published in:Physical chemistry chemical physics : PCCP 2010-07, Vol.12 (25), p.6692-6697
Main Authors: TSAI, Tim W. T, CHOU, Fang-Chieh, TSENG, Yao-Hung, CHAN, Jerry C. C
Format: Article
Language:English
Subjects:
Calcium Phosphates - chemistry
Chemistry
Exact sciences and technology
General and physical chemistry
Hydrogen-Ion Concentration
Hydrolysis
Magnetic Resonance Spectroscopy
Phosphorus Isotopes - chemistry
Succinic Acid - chemistry
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Summary:Octacalcium phosphate (OCP) is an important model compound in the study of biomineralization. The octacalcium phosphate-succinate (OCPS) compound is prepared and characterized by (31)P solid-state NMR spectroscopy. Taking advantage of the fact that the crystal structures of OCP and OCPS are very similar, an NMR strategy based on the (31)P homonuclear double-quantum spectroscopy is developed to assign all the peaks observed in the (31)P magic-angle spinning spectrum of OCPS. On the basis of our experimental data, the molecular formula of OCPS is determined to be Ca(7.81)(HPO(4))(1.82)(PO(4))(3.61)(succinate)(0.56).zH(2)O, where z
ISSN:1463-9076
1463-9084
DOI:10.1039/b923338e