Acta Crystallographica Section C

Crystal Structure Communications

Volume 58, Part 9 (September 2002)

Acta Cryst. (2002). C58, m466-m468 [doi:10.1107/S0108270102012362]

Chlorotris(2,4,6-trimethylphenyl)tin(IV) and its ethanol hemisolvate

J. Geller, I. Wharf, F. Bélanger-Gariépy, A.-M. Lebuis, I. S. Butler and D. F. R. Gilson

Abstract: Chlorotris(2,4,6-trimethylphenyl)tin(IV), crystallizes from ethanol as solvent-free needles, [Sn(C₉H₁₁)₃Cl], (I), and as the hemisolvate, [Sn(C₉H₁₁)₃Cl]·0.5C₂H₆O, (II). The asymmetric unit in (I) has three independent molecules, whereas in (II), there are two [Sn(C₉H₁₁)₃Cl] molecules together with one ethanol molecule. In the unit cell of (II), the ethanol molecules lie in channels between stacks of (Mes)₃SnCl molecules (Mes is 2,4,6-trimethylphenyl) and each ethanol molecule is disordered (0.50:0.50) over two positions. A comparison of the structures of the title compounds and other (Mes)₃SnX (X = F, Br or I) systems with those of the triphenyltin analogues shows that the steric requirements of the o-CH₃ groups are met by a flattening of the SnC₃ skeleton and increases in the average Sn-X and Sn-C values. Comparing Sn-X data for (Mes)₃SnX (X = F, Cl, Br or I) systems with values for the tris(o-methoxyphenyl)tin analogues suggests that the Sn-F distance of 1.961 Å in (Mes)₃SnF may well be characteristic of sterically unhindered four-coordinate Ar₃SnF systems.

Formula: [Sn(C₉H₁₁)₃Cl] and [Sn(C₉H₁₁)₃Cl]·0.5C₂H₆O

Online 10 August 2002


	Structure factor file (CIF format) (729.1 kbytes) Contains datablock I

	Structure factor file (CIF format) (503.2 kbytes) Contains datablock II

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.