caa a22 4500 378854828 CHVBK 20180305123332.0 cr unu---uuuuu 161128e20030501xx s 000 0 eng 10.1524/zkri.218.5.321.20736 doi (NATIONALLICENCE)gruyter-10.1524/zkri.218.5.321.20736 Solution of the structure and disorder of Ln13Br18B3 (Ln [Elektronische Daten] Gd, Tb) [O. Oeckler, L. Kienle, Hj. Mattausch, O. Jarchow, A. Simon] The average structures (Immm) of Gd13Br18B3 (A = 3.9923(2) Å, B = 17.0462(12) Å, C = 28.3039(19) Å) and Tb13Br18B3 (A = 3.9637(3) Å, B = 16.9063(13) Å, C = 28.1068(18) Å) were solved taking into account Bragg intensities only. The average structure contains an ordered honeycomb arrangement of chains formed from trans edge sharing Tb6B octahedra and disordered and partly occupied chains of double octahedra in the channels. Pronounced diffuse scattering which is elongated in [001]* indicates a 2D order of the structure. High resolution electron microscopy (HRTEM) gives insight into the nature of the ordering and leads to a model of discrete Tb10B2 clusters in the channels which are perfectly ordered in layers in a 2 × 2 × 2 supercell. These layers are randomly stacked with well defined translation values to each other along [100]. © 2003 Oldenbourg Wissenschaftsverlag GmbH Crystallography nationallicence Inorganic chemistry nationallicence Organic chemistry nationallicence Oeckler O. aut Kienle L. aut Mattausch Hj aut Jarchow O. aut Simon A. aut Zeitschrift für Kristallographie - Crystalline Materials De Gruyter Oldenbourg 218/5(2003-05-01), 321-331 2194-4946 218:5<321 2003 218 zkri https://doi.org/10.1524/zkri.218.5.321.20736 text/html Onlinezugriff via DOI 1 research article jats NATIONALLICENCE 856 40 https://doi.org/10.1524/zkri.218.5.321.20736 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Oeckler O. aut NATIONALLICENCE 700 1- Kienle L. aut NATIONALLICENCE 700 1- Mattausch Hj aut NATIONALLICENCE 700 1- Jarchow O. aut NATIONALLICENCE 700 1- Simon A. aut NATIONALLICENCE 773 0- Zeitschrift für Kristallographie - Crystalline Materials De Gruyter Oldenbourg 218/5(2003-05-01), 321-331 2194-4946 218:5<321 2003 218 zkri CC0 http://creativecommons.org/publicdomain/zero/1.0 nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-gruyter