State whether it is polar or nonpolar. Predict the electron pair geometry and the molecular structure of the following molecule or ion: SF_6 Predict the electron pair geometry and the molecular structure of the following molecule or ion: PCI_5 Predict the electron pair...
This trend contradicts with the other Ca9−xMxEu(PO4)7 (M = Zn2+, Mg2+) [29] solid solutions, where changing of the symmetry from polar R3c to nonpolar R3̲3¯c leads to increasing of the luminescence intensity. However, such behavior of PL intensity in Eu3+ and Mn2+ co-...