Details
| Originalsprache | Englisch |
|---|---|
| Seiten (von - bis) | 891-895 |
| Seitenumfang | 5 |
| Fachzeitschrift | New journal of chemistry |
| Jahrgang | 23 |
| Ausgabenummer | 8 |
| Publikationsstatus | Veröffentlicht - 1999 |
Abstract
The first half sandwich cyclopentadienyl complexes 2-5 with a carbene complex subtituent at the cyclopentadienyl ring are presented. These complexes deserve interest because one metal atom (Cr, Mo, W, Fe) is incorporated in the system of the ligand in conjugation to the cyclopentadienyl ring complexed to iron. In addition to intermetallic interactions these complexes offer the possibility of reactions at both metal atoms. An X-ray structure analysis of 2 reveals, however, that the carbene-chromium π bond is not perfectly coplanar with the cyclopentadienyl ring. Cyclic voltammetry of some of the complexes prepared shows a decrease in oxidation potential upon carbene complex substitution at the cyclopentadienyl ring for 2 and 7 by 118 and 63 mV, respectively. A ligand exchange reaction with bis(diphenylphosphino)ethane (dppe) under irradiation results in the incorporation of two dppe molecules.
ASJC Scopus Sachgebiete
- Chemische Verfahrenstechnik (insg.)
- Katalyse
- Chemie (insg.)
- Werkstoffwissenschaften (insg.)
- Werkstoffchemie
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in: New journal of chemistry, Jahrgang 23, Nr. 8, 1999, S. 891-895.
Publikation: Beitrag in Fachzeitschrift › Artikel › Forschung › Peer-Review
}
TY - JOUR
T1 - Some bimetallic half sandwich iron complexes with metal carbene substitution at the cyclopentadienyl ligand
T2 - Synthesis, characterization, structure, and cyclic voltammetry
AU - Behrendt, Uwe
AU - Pfeifer, Robert Michael
AU - Wartchow, Rudolf
AU - Butenschön, Holger
PY - 1999
Y1 - 1999
N2 - The first half sandwich cyclopentadienyl complexes 2-5 with a carbene complex subtituent at the cyclopentadienyl ring are presented. These complexes deserve interest because one metal atom (Cr, Mo, W, Fe) is incorporated in the system of the ligand in conjugation to the cyclopentadienyl ring complexed to iron. In addition to intermetallic interactions these complexes offer the possibility of reactions at both metal atoms. An X-ray structure analysis of 2 reveals, however, that the carbene-chromium π bond is not perfectly coplanar with the cyclopentadienyl ring. Cyclic voltammetry of some of the complexes prepared shows a decrease in oxidation potential upon carbene complex substitution at the cyclopentadienyl ring for 2 and 7 by 118 and 63 mV, respectively. A ligand exchange reaction with bis(diphenylphosphino)ethane (dppe) under irradiation results in the incorporation of two dppe molecules.
AB - The first half sandwich cyclopentadienyl complexes 2-5 with a carbene complex subtituent at the cyclopentadienyl ring are presented. These complexes deserve interest because one metal atom (Cr, Mo, W, Fe) is incorporated in the system of the ligand in conjugation to the cyclopentadienyl ring complexed to iron. In addition to intermetallic interactions these complexes offer the possibility of reactions at both metal atoms. An X-ray structure analysis of 2 reveals, however, that the carbene-chromium π bond is not perfectly coplanar with the cyclopentadienyl ring. Cyclic voltammetry of some of the complexes prepared shows a decrease in oxidation potential upon carbene complex substitution at the cyclopentadienyl ring for 2 and 7 by 118 and 63 mV, respectively. A ligand exchange reaction with bis(diphenylphosphino)ethane (dppe) under irradiation results in the incorporation of two dppe molecules.
UR - http://www.scopus.com/inward/record.url?scp=0032802669&partnerID=8YFLogxK
U2 - 10.1039/a902815c
DO - 10.1039/a902815c
M3 - Article
AN - SCOPUS:0032802669
VL - 23
SP - 891
EP - 895
JO - New journal of chemistry
JF - New journal of chemistry
SN - 1144-0546
IS - 8
ER -