Citation: Zhou Jian-Lue, Chen Shu-Zi, Zuo Chang-Ming, Ji Xiao-Jiang. XPS Insvestigation of Hydrogen Bond in Hydroxyapatite[J]. Acta Physico-Chimica Sinica, ;1990, 6(05): 629-632. doi: 10.3866/PKU.WHXB19900522
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Several calcium orthophosphates (tricalcium phosphate, monocalcium dihydropho-sphate, dicalcium hydrophosphate, and hydroxyapatite) are characterized by XPS and IR method. The P2p electron binding energies follow the order Ca(H_2PO_4)_2>CaHPO_4>Ca_(10)(OH)_2(PO_4)_6>Ca_3(PO_4)_2. It is expounded that there is hydrogen bonding of (OH...OPO_3) between the OH~- ion and the neighbour oxygen of the phosphate in hydroxyapatite.
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