Acta Crystallographica Section B

Structural Science, Crystal Engineering and Materials

Volume 69, Part 6 (December 2013)


research papers



Acta Cryst. (2013). B69, 613-620    [ doi:10.1107/S2052519213029618 ]

Supramolecular association via Sb...S and C-H...S interactions in dimeric tris(N,N-dimethyldithiocarbamato-S,S')antimony(III): an approach to overcome the concept of steric bulk on such interactions

H. P. S. Chauhan and J. Carpenter

Abstract: Tris(N,N-dimethyldithiocarbamato-S,S')antimony(III) has been isolated as a dimer in acetonitrile. Single-crystal X-ray analysis shows that the molecule possesses both Sb...S and C-H...S interactions, which results in a supramolecular association in the absence of hydrogen-bonding functionality on the R group. The co-existence in the title compound of such interactions is a unique character of known dimeric antimony(III) alkyl and/or aryl dithiocarbamate complexes. The literature reveals that the species where the alkyl and/or aryl dithiocarbamates carry the following groups: R = methyl (chloroform solvated), ethyl, n-propyl, pyrrolidine, morpholine, piperidine, azepane, benzyl, methylphenyl, are not capable of forming significant hydrogen-bonding interactions. However, either Sb...S or C-H...S intermolecular interactions dominate between two centrosymmetrically related molecules leading to a supramolecular aggregation. In the species where the R group carries hydrogen-bonding functionality, i.e. 2-hydroxylethyl, the C-H...S interactions are subverted by O-H...O hydrogen bonding. In addition, the title compound does not have steric hindrance or any hydrogen-bonding group but is stabilized with the co-existence of Sb...S and C-H...S interactions. Analysis of the secondary interactions of a series of analogues previously reported reveals that steric bulk is unnecessary for the mitigation of Sb...S interactions and for the establishment of C-H...S secondary bonding.

Keywords: supramolecular interactions; dimeric structure; hydrogen bonding.


pdfdisplay filedownload file

Portable Document Format (PDF) file
[ doi:10.1107/S2052519213029618/bp5059sup3.pdf ]
CheckCIF report


Notes:

To open or display or play some files, you may need to set your browser up to use the appropriate software. See the full list of file types for an explanation of the different file types and their related mime types and, where available links to sites from where the appropriate software may be obtained.

The download button will force most browsers to prompt for a file name to store the data on your hard disk.

Where possible, images are represented by thumbnails.

 bibliographic record in  format

  Find reference:   Volume   Page   
  Search:     From   to      Advanced search

Copyright © International Union of Crystallography
IUCr Webmaster