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Synthesis and Characterization of Cs 2 Mo 6 X 14 (X = Br or I) Hexamolybdenum Cluster Halides: Efficient Mo 6 Cluster Precursors for Solution Chemistry Syntheses
Author(s) -
Kirakci Kaplan,
Cordier Stéphane,
Perrin Christiane
Publication year - 2005
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.200400281
Subject(s) - halogen , halide , crystallography , cluster (spacecraft) , crystal structure , hexagonal crystal system , caesium , x ray crystallography , lattice (music) , chemistry , yield (engineering) , diffraction , materials science , inorganic chemistry , physics , organic chemistry , computer science , programming language , alkyl , acoustics , optics , metallurgy
Cs 2 Mo 6 Br 14 (1) and Cs 2 Mo 6 I 14 (2) have been synthesized by solid state chemistry techniques and structurally characterized by single crystal X‐ray diffraction. They crystallize in the P 3¯1 c space group (Nr. 163) with the following lattice parameters: a = 10.1925(1) Å, c = 15.0690(3) Å, Z = 2 for 1 ; a = 10.804(5) Å, c = 16.258(5) Å, Z = 2 for 2 . These clusters halides, whose structures are related to that of Cs 2 Mo 6 Cl 8 Br 6 , are built up from discrete [(Mo 6 X i 8 )X a 6 ] 2‐ anionic units (X = Br, I) stacked according to an hexagonal close‐packing arrangement. In the present work, the influence of the halogen on the cesium sites will be evidenced and discussed. Furthermore, a simple high yield preparation method of (TBA) 2 Mo 6 X i 8 X a 6 will be proposed starting from Cs 2 Mo 6 X 14 .