A(5)RE(4)X[TO4](4) crystal growth and photoluminescence. Hydroflux synthesis of sodium rare earth silicate hydroxides

作者：Latshaw Allison M^*; Chance W Michael; Trenor Nathan; Morrison Gregory; Smith Mark D; Yeon Jeongho; Williams Derek E; Loye Hans Conrad Zur

来源：CrystEngComm, 2015, 17(25): 4691-4698.

DOI：10.1039/c5ce00630a

Single crystals of Na5RE4(OH)[SiO4](4) (RE = Pr, Nd, Sm, Eu, Tb-Yb, Y) were grown using the hydroflux synthetic method. All compositions adopt the tetragonal I (4) over bar space group with lattice parameter ranges of a = 11.5275(4)-12.0588(3) angstrom and c = 5.3951(4)-5.4846(13) angstrom. Intense photoluminescent properties were observed for Na5Eu4(OH)[SiO4](4), Na5Gd4(OH)[SiO4](4), and Na5Tb4(OH)[SiO4](4). The magnetic susceptibility was measured for the magnetic rare earth containing compositions, where the terbium analogue displayed antiferromagnetic order at T = 2.8 K.

• 出版日期2015