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Characterization of A x [W 6 I 14 ] as Key Compounds for Ligand‐Substituted A 2 [W 6 I 8 L 6 ] Clusters
Author(s) -
Hummel Thorsten,
Ströbele Markus,
Schmid Dominic,
Enseling David,
Jüstel Thomas,
Meyer H.Jürgen
Publication year - 2016
Publication title -
european journal of inorganic chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.667
H-Index - 136
eISSN - 1099-0682
pISSN - 1434-1948
DOI - 10.1002/ejic.201600926
Subject(s) - chemistry , alkali metal , crystallography , octahedron , ligand (biochemistry) , crystal structure , x ray crystallography , single crystal , inorganic chemistry , powder diffraction , diffraction , organic chemistry , biochemistry , physics , receptor , optics
A x [W 6 I 14 ] compounds with A = Na, K, Rb, or Cs are prepared from W 3 I 12 and alkali iodides (AI). Crystal structures were solved and refined for Na[W 6 I 14 ] and A 2 [W 6 I 14 ] compounds with A = K, Rb and Cs on the basis of powder and single‐crystal XRD diffraction. All compounds behave stable in air and can be dissolved in polar organic solvents making them valuable precursors for long‐needed soluble octahedral [W 6 I 8 I 6 ] 2– cluster ions. Excitation and emission spectra of solid Na[W 6 I 14 ] and Cs 2 [W 6 I 14 ] are reported as reference systems for photophysically active A 2 [W 6 I 8 L 6 ] compounds (L = inorganic or organic ligand), which can be developed therefrom, as demonstrated for Na 2 [W 6 I 8 (OCH 3 ) 6 ] · 8(CH 3 OH).