摘要
The system Ca2+/2-aminoethylphosphonic acid/H2O/NaOH was systematically investigated using high-throughput methods. The experiments led to one new compound Ca(O3PC2 H4NH2) (ng class="boldFont">1ng>) and the crystal structure was determined using in house X-ray powder diffraction data (monoclinic, P21/c, a=9.7753(3), b=6.4931(2), c=8.4473(2) 脜, 尾=106.46(2)掳, V=514.20(2) 脜3, Z=4). The formation of ng class="boldFont">1ng> was investigated by in situ energy dispersive X-ray diffraction measurements (EDXRD) at beamline F3 at HASYLAB (light source DORIS III), DESY, Hamburg. An intermediate, Ca(OH)(O3PC2H4NH3)路2H2O (ng class="boldFont">2ng>), was observed and could be isolated from the reaction mixture at ambient temperatures by quenching the reaction. The crystal structure of ng class="boldFont">2ng> was determined from XRPD data using synchrotron radiation (monoclinic, P21/m, a=11.2193(7), b=7.1488(3), c=5.0635(2) 脜, 尾=100.13(4)掳, V=399.78(3) 脜3, Z=2).