SYNTHESIS AND CRYSTAL-STRUCTURE OF POTASSIUM INDIUM TRIBROMIDE, KINBR3

Authors
SCHOLTEN M DRONSKOWSKI R STAFFEL T MEYER G
Citation
M. Scholten et al., SYNTHESIS AND CRYSTAL-STRUCTURE OF POTASSIUM INDIUM TRIBROMIDE, KINBR3, Zeitschrift fur anorganische und allgemeine Chemie, 624(11), 1998, pp. 1741-1745
Citations number
28
Categorie Soggetti
Chemistry Inorganic & Nuclear
Journal title
Zeitschrift fur anorganische und allgemeine Chemie
ISSN journal
00442313 → ACNP
Volume
624
Issue
11
Year of publication
1998
Pages
1741 - 1745
Database
ISI
SICI code
0044-2313(1998)624:11<1741:SACOPI>2.0.ZU;2-D
Abstract
KInBr3, the first ternary indium bromide containing divalent indium, i s synthesized from InBr3, KBr, and elemental In at 450 degrees C. Its trigonal crystal structure (a = b = 853.24(1) pm, c = 1077.76(2) pm; P (3) over bar; Z = 4) has been solved and refined from X-ray powder da ta. Indium atoms of oxidation state two are found in an [In2Br6](2-) u nit with ecliptic ethane structure while potassium ions are located in two different polyhedra. There is an octahedral coordination by bromi ne anions for half of the K+ whereas the other K+ cations are located in trigonal Bi prisms, tricapped by three additional Br- anions.