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Synthesis and crystal structures of hydrogen and carbon stabilized lutetium monochloride, LuClH x and Lu 2 Cl 2 C
Author(s) -
Schleid Thomas,
Meyer Gerd
Publication year - 1987
Publication title -
zeitschrift für anorganische und allgemeine chemie
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.354
H-Index - 66
eISSN - 1521-3749
pISSN - 0044-2313
DOI - 10.1002/zaac.19875520909
Subject(s) - lutetium , crystallography , chemistry , hydrogen , crystal structure , octahedron , x ray crystallography , carbon fibers , tantalum , inorganic chemistry , materials science , yttrium , diffraction , physics , organic chemistry , composite number , composite material , oxide , optics
Single crystals of the, basically, four‐layer slab structure …ClLuLuCl… of the apparently as such nonexisting lutetium monochloride, LuCl, stabilized by interstitial hydrogen or carbon have been obtained from reactions of LuCl 3 and cesium (LuClH x , due to ubiquitous hydrogen) and C s Cl, lutetium and carbon (Lu 2 Cl 2 C), respectively, in sealed tantalum containers at elevated temperatures (above 700°C). Both exhibit so‐called 3R structures (space group R 3 m): LuClH x (a = 363.83(3), c = 2710.2(3) pm, Z = 6) crystalizes with the ZrCl type structure with hydrogen in tetrahedral interstices and Lu 2 Cl 2 C (a = 360.17(3), c = 2716.0(3) pm, Z = 3) with the tetradymite type (Bi 2 Te 2 S) with carbon in octahedral interstices between the double metal layers. Power X‐ray diffraction shows that for Lu 2 Cl 2 C a 1T structure is also adopted (a = 359.72(3), c = 909.25(9) pm, p 3 m1, Z = 1).