Synthesis and crystal structure of a new magnesium phosphate Na₃RbMg₇(PO₄)₆

Abstract

Trisodium rubidium hepta­magnesium hexakis(ortho­phosphate) exhibits a new structure type, with MgOx (x = 5 and 6) polyhedra linked directly to each other through common corners or edges and reinforced by corner-sharing with PO4 tetra­hedra. The resulting anionic three-dimensional framework leads to the formation of channels in which the Na+ cations are located, while the Rb+ cations are located in large inter­stitial cavities.

A novel narrow-band blue-emitting phosphor with high efficiency and thermal stability for WLEDs and FEDs

“…1(a), while the crystallographic data of Na 3 RbMg 7 (PO 4 ) 6 was used as the initial modal. 32 All the diffraction peaks of the experimental data have a good agreement with the calculated data except for the intensity. And the relevant refined residual factors are R wp = 8.41%, R p = 7.18%, and χ 2 = 1.462, which maintains a low level.…”

Yakubovichite, CaNi2Fe3+(PO4)3, a new nickel phosphate mineral of non-meteoritic origin

“…where A = K, Rb, Cs; M = Fe 2+ , Mg, Mn, Zn (Yakubovich et al 1996;Queen et al 2007;Guo et al 2014;Ben Hamed et al 2017). The direct chemical analogue of xenophyllite was reported by Pu et al (2019).…”

Progress of Ce3+/Eu2+ doped phosphors for violet chip based full-spectra lighting

“…In 2017, Hamed et al first reported Na 3 RbMg 7 (PO 4 ) 6 with a monoclinic system and a C 2/ c space group. 193 As shown in Fig. 15a, the Na 3 RbMg 7 (PO 4 ) 6 consists of MgO x frameworks by sharing edges or corners.…”