| | 1 | Author
| Wolfgang Saak, Siegfried Pohl | Requires cookie* | | | Title
|  | | | | Abstract
| Fe 4 S 4 I 2 (SPPh 3) 2 (1) was prepared by the reaction of Fe(THF) 6 Fe 4 S 4 I 4 (THF = C 4 H 8 0). SPPh,. and sulfur in toluene and CH 2 C1 2 . 1 has a lower stability than Fe 4 S 4 I 4 2_ and decomposes in solvents like THF and CH,CN. The crystal structure of 1 was determined from single crystal X-ray diffraction data. The compound crystallizes in the triclinic space group PI with a = 1025.5(1). b = 1082.4(1), c = 2135.5(3) pm. a = 89.82(1).ß -77.37(1), y = 73.56(1)°. V = 2214.1x10" pm'and Z = 2. The [Fe 4 S 4 ] 2+ core of 1 exhibits a slight tetragonal distortion. The mean Fe —S and Fe —Fe distances were found to be 227.6 (225.8-228.7) pm and 273.3 (272.9-274.4) pm, respectively. The Fe-SPPh, distances (231.6 and 232.1 pm) are longer than the terminal Fe — S bonds in RS coordinated [Fe 4 S 4 ] clusters. The Fe —I bonds are found at 251.6 and 251.8 pm. respectively. | | | |
Reference
| Z. Naturforsch. 43b, 813—817 (1988); eingegangen am 15. Februar 1988 | | | |
Published
| 1988 | | | |
Keywords
| Neutral, Mixed Terminal Ligand Iron-Sulfur Cluster, Synthesis, Crystal Structure | | | |
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| default:Reihe_B/43/ZNB-1988-43b-0813.pdf | | | | Identifier
| ZNB-1988-43b-0813 | | | | Volume
| 43 | |
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