Details
| Originalsprache | Deutsch |
|---|---|
| Seiten (von - bis) | 2423-2427 |
| Seitenumfang | 5 |
| Fachzeitschrift | Chemische Berichte |
| Jahrgang | 124 |
| Ausgabenummer | 11 |
| Publikationsstatus | Veröffentlicht - Nov. 1991 |
| Extern publiziert | Ja |
Abstract
The (cyclopentadienyl)cobalt(I) complex 4 of the 4,7‐dihydroacepentalene derivative 2b has been prepared by the reaction of the ligand with (cyclopentadienyl)bis(ethene)cobalt(I). NOE experiments indicate a complexation at the convex face of the polyolefinic ligand. 1H‐NMR spectra establish a degenerate haptotropic rearrangement with CpCo migration from one diene unit to the adjacent one. The activation energy of this process is estimated to be 15 kcal/mol. An X‐ray crystal structure determination of (η4‐4,7‐dihydroacepentalene)tricarbonyliron derivative 3a shows a distorted coordination of Fe(CO)3 at the convex face of the ligand, too.
Schlagwörter
- 4,7‐dihydro, Acepentalene, Cobalt complexes, complexes, Degenerate haptotropic rearrangement, Iron complexes
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in: Chemische Berichte, Jahrgang 124, Nr. 11, 11.1991, S. 2423-2427.
Publikation: Beitrag in Fachzeitschrift › Artikel › Forschung › Peer-Review
}
TY - JOUR
T1 - η 4‐Complexes of 4,7‐Dihydroacepentalene
T2 - Facile Degenerate Haptotropic Rearrangement of (η5‐Cyclopentadienyl)(η4‐4,7‐dihydroacepentalene)cobalt(I) in Contrast to its Tricarbonyliron Counterpart
AU - Schröder, Günter
AU - Butenschön, Holger
AU - Boese, Roland
AU - Lendvai, Tomas
AU - Meijere, Armin De
PY - 1991/11
Y1 - 1991/11
N2 - The (cyclopentadienyl)cobalt(I) complex 4 of the 4,7‐dihydroacepentalene derivative 2b has been prepared by the reaction of the ligand with (cyclopentadienyl)bis(ethene)cobalt(I). NOE experiments indicate a complexation at the convex face of the polyolefinic ligand. 1H‐NMR spectra establish a degenerate haptotropic rearrangement with CpCo migration from one diene unit to the adjacent one. The activation energy of this process is estimated to be 15 kcal/mol. An X‐ray crystal structure determination of (η4‐4,7‐dihydroacepentalene)tricarbonyliron derivative 3a shows a distorted coordination of Fe(CO)3 at the convex face of the ligand, too.
AB - The (cyclopentadienyl)cobalt(I) complex 4 of the 4,7‐dihydroacepentalene derivative 2b has been prepared by the reaction of the ligand with (cyclopentadienyl)bis(ethene)cobalt(I). NOE experiments indicate a complexation at the convex face of the polyolefinic ligand. 1H‐NMR spectra establish a degenerate haptotropic rearrangement with CpCo migration from one diene unit to the adjacent one. The activation energy of this process is estimated to be 15 kcal/mol. An X‐ray crystal structure determination of (η4‐4,7‐dihydroacepentalene)tricarbonyliron derivative 3a shows a distorted coordination of Fe(CO)3 at the convex face of the ligand, too.
KW - 4,7‐dihydro
KW - Acepentalene
KW - Cobalt complexes
KW - complexes
KW - Degenerate haptotropic rearrangement
KW - Iron complexes
UR - http://www.scopus.com/inward/record.url?scp=82455190946&partnerID=8YFLogxK
U2 - 10.1002/cber.19911241108
DO - 10.1002/cber.19911241108
M3 - Artikel
AN - SCOPUS:82455190946
VL - 124
SP - 2423
EP - 2427
JO - Chemische Berichte
JF - Chemische Berichte
SN - 0009-2940
IS - 11
ER -