An easy alkoxide-based sol–gel method based on Ca(NO3)2·4H2O and triethyl phosphate [PO(OC2H5)3;

TEP] as Ca and P precursors have been developed to synthesize nano-hydroxyapatite (HA). The structural

evolution ...

Investigation of tautomerism and transition states in a derivative of 1,3,4-oxadiazole (A, B, C and D)

in the gas phase and in solution and in a micro hydrated environment with 1–3 water molecules was

performed ...