Crystal structure of 2,2,4,7,7-pentamethyl-3,6-dithiaoctane tetracarbonyl tungsten(0) |
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| Authors: | José E. Cortés-Figueroa Jeffrey D. Zubkowski Edward J. Valente |
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| Affiliation: | (1) Organometallic Chemistry Research Laboratory, Department of Chemistry, University of Puerto Rico, P. O. Box 9019, Mayagüez, Puerto Rico, 00681;(2) Department of Chemistry, Jackson State University, Jackson, Mississippi, 39217;(3) Department of Chemistry, Mississippi College, Clinton, Mississippi, 39058 |
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| Abstract: | The x-ray crystal structure of the complex  2-PDOW(CO)4 (five-membered ring, PDO = 2, 2, 4, 7, 7-pentamethyl-3,6-dithiaoctane) is reported. The complex crystallizes in the monoclinic crystal system, space group P21/c, [#14] with unit cell parameters a = 14.002(14) Å, b = 9.340(10) Å, c = 15.094(12) Å,  = 92.67(4)°, V = 1972(3) Å3; Z = 4. The arrangement of the ligands around the metal atom is distorted from octahedral geometry. Large C–O bond distances and short W–C bond distances of the carbonyl groups located at a trans position with respect to PDO is indicative of a trans influence. The W–S(1) and W–S(2) bond distances of 2.545(3) and 2.545(2) Å, respectively, are shorter than observed for closely related complexes. |
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| Keywords: | Metal carbonyl complexes chelate complexes crystal structure |
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