Thiocyanate Coordination to the {Ta6I12}2+ Cluster. Preparation and Crystal Structure of [K(Dibenzo-24-Crown-8)(CH3COCH3)]2(Ph4P)2[Ta6I12(NCS)6]

The reaction of Ta 6 I 14 with KNCS in acetonitrile in the presence of 24-dibenzo-crown-8 leads to dissolution of the tantalum iodide cluster to form the [Ta 6 I 12 (NCS) 6 ] 4− complex. By evaporation of the solution with the subsequent treatment of the precipitate with acetone and PPh 4 Br, dark g...

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Bibliographic Details
Published in:Journal of structural chemistry 2020, Vol.61 (5), p.727-733
Main Authors: Shamshurin, M. V., Sukhikh, T. S., Mikhailov, M. A., Sheven, D. G., Sokolov, M. N.
Format: Article
Language:English
Subjects:
Acetone
Acetonitrile
Atomic
Atomic/Molecular Structure and Spectra
Chemistry
Chemistry and Materials Science
Clusters
Crystal structure
Infrared analysis
Inorganic Chemistry
Mass spectra
Molecular
Optical and Plasma Physics
Physical Chemistry
Single crystals
Solid State Physics
Tantalum
Thiocyanates
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Summary:The reaction of Ta 6 I 14 with KNCS in acetonitrile in the presence of 24-dibenzo-crown-8 leads to dissolution of the tantalum iodide cluster to form the [Ta 6 I 12 (NCS) 6 ] 4− complex. By evaporation of the solution with the subsequent treatment of the precipitate with acetone and PPh 4 Br, dark green single crystals of the composition [K(C 24 H 32 O 8 )(CH 3 COCH 3 )] 2 (Ph 4 P) 2 [Ta 6 I 12 (NCS) 6 ] CH 3 COCH 3 (1) are obtained with a yield of 29%. The product is characterized by elemental analysis, IR, and mass spectra. The crystal structure is determined by the X-ray diffraction analysis.
ISSN:0022-4766
1573-8779
DOI:10.1134/S002247662005008X