Details
Original language | German |
---|---|
Pages (from-to) | 2423-2427 |
Number of pages | 5 |
Journal | Chemische Berichte |
Volume | 124 |
Issue number | 11 |
Publication status | Published - Nov 1991 |
Externally published | Yes |
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.
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In: Chemische Berichte, Vol. 124, No. 11, 11.1991, p. 2423-2427.
Research output: Contribution to journal › Article › Research › 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 -