Mg 3 (BN 2 )N was prepared by solid state metathesis reactions and several europium (Eu 2+ ) doped samples were prepared to discover novel red-emitting photoluminescent (PL) materials. It turned out that the undoped and doped samples showed very broad deep-red photoluminescence ranging from about 500 nm into the near infrared. Due to

The heterobimetallic 1D-polymeric alkali metal/lanthanoid [AMLn (Q) 4 ] n [Q = OQ (8-quinolinolate): AM = Li, Ln = Tb, Ho, Er; AM = K, Ln = Er; Q = MQ (2-methyl-8-quinolinolate): AM = Rb; Ln = Tb, Er] complexes were obtained after rearrangement reactions between AM(Q) and Ln(Q) 3 in a 1,2,4,5-tetramethylbenzene flux at elevated temperatures. In these compounds, the eight-coordinate lanthanoid ion is surrounded by four (O, N) chelating Q ligands, which bridge to the adjacent alkali metal through their oxygen atoms to form the linear polymers. Dimeric [Cs 2 (MQ) 2 (HMQ) 2 ] was obtained from an attempt to prepare [CsEr(MQ) 4 ] n , and the caesium atoms are each ligated by one terminal HMQ and one chelating-bridging MQ ligand. In addition, the chelatingbridging ligands in [Cs 2 (MQ) 2 (HMQ) 2 ] and in the rubidium

The new compound La3(OBN2)O2 was prepared by a solid state reaction of LaOCl and Li3(BN2) at 1200 °C in a fused niobium ampoule. A single crystal structure refinement [Pnma, Z = 4, a = 1269.8(2) pm, b = 368.94(5) pm, c = 1101.1(2) pm] indicates the presence of a planar (OBN2)5– ion, which is structurally related to the (BN3)6– ion. The arrangement of atoms in the structure corresponds to a slightly modified structure of Ca3(CBN)Cl2 [Pnma, Z = 4, a = 1386.7(9) pm, b = 384.7(3) pm, c = 1124.7(6) pm].