BRUNNER, H and POLL, L and WACHTER, J and NUBER, B (1994) NEW FEASS CAGE STRUCTURES FROM [CP(+)FE(CO)2]2 (CP(+)=C5ME4ET) AND REALGAR. JOURNAL OF ORGANOMETALLIC CHEMISTRY, 471 (1-2). pp. 117-122. ISSN 0022-328X,
Full text not available from this repository.Abstract
The reaction of [Cp+Fe(CO)2]2 (Cp+= eta5-C5Me4Et) with equimolar amounts of As4S4 in boiling toluene gives Cp+2Fe2As2S2 (1) and Cp2+Fe2As2S3 (2). Both complexes form with two equivalents of Cr(CO)5THF the bisadducts Cp+2Fe2As2S2.2Cr(CO)5 (3) and Cp+2Fe2As2S3.2Cr(CO)5 (4), respectively. The Cr(CO)5 fragments are bound to the As atoms. X-ray diffraction analyses have been carried out for 1 and 4. The structure of 1 contains two coplanar eta2-AsS bridges which bisect the Fe-Fe vector and are parallel to the Cp+ ligands. Complex 1 is formulated as a 30e tripledecker complex for it contains an As-As distance (2.629(1) angstrom) very close to As-As bonding. The structure of 4 contains a Fe2As2S3 cage. The inorganic ligand is formally built up by two syn oriented AsS units which are bridged by a S atom. Such a view is supported by the conversion of 1 into 2 by reaction with a mild sulfur donator, e.g. As4S4.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | TRANSITION-METAL-COMPLEXES; TRIPLE-DECKER SANDWICH; LIGAND; REACTIVITY; SULFUR; FRAGMENTATION; DERIVATIVES; CHEMISTRY; AS4S4; AS2S3; CHROMIUM; IRON; CARBONYL; ARSENIC, SULFUR; CAGE COMPOUND |
| Depositing User: | Dr. Gernot Deinzer |
| Last Modified: | 19 Oct 2022 08:40 |
| URI: | https://pred.uni-regensburg.de/id/eprint/53275 |
Actions (login required)
 |
View Item |
