Details
| Original language | English |
|---|---|
| Pages (from-to) | 1657-1669 |
| Number of pages | 13 |
| Journal | Chemische Berichte |
| Volume | 126 |
| Issue number | 7 |
| Publication status | Published - Jul 1993 |
| Externally published | Yes |
Abstract
The syntheses and characterisation of the [ω‐(phosphanyl)alkyl]cyclopentadienyl anions 2, 3, 6–8, 10, and 11 are described. These anions form metallocenes 12–15 and 17–19 with FeCl2 · 2 THF and with ZrCl4 · 2 THF, respectively. With ICo(CO)4 chelated carbonbyl complexes 23–25, 28, and 29 are formed. The unchelated intermediate 20 has been detected by IR spectroscopy. The carbonyl chelate complexes are thermally stable. Under photochemical conditions, ligand exchange reactions are possible which in the case of 1,5‐cyclooctadiene proceed with decomplexation of the phosphane arm. This does not prevent a reaction at the cobalt(I) atom; treatment of 35 with diphenylethyne gives the corresponding tetraphenylcyclobutadiene complex 36 in good yield, the phosphane arm remaining uncoordinated.
Keywords
- Anions, [ω‐(phosphanyl)alkyl]cyclopentadienyl, Cobalt(I) chelate complexes, Cobalt, [ω‐(phosphanyl)alkyl]cyclopentadienyl complexes, Iron, [ω‐(phosphanyl)alkyl]cyclopentadienyl complexes, Zirconium, [ω‐(phosphanyl)alkyl]cyclopentadienyl complexes
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In: Chemische Berichte, Vol. 126, No. 7, 07.1993, p. 1657-1669.
Research output: Contribution to journal › Article › Research › peer review
}
TY - JOUR
T1 - [ω‐(Phosphanyl)alkyl]cyclopentadienyl Complexes
AU - Kettenbach, Ralf T.
AU - Bonrath, Werner
AU - Butenschön, Holger
PY - 1993/7
Y1 - 1993/7
N2 - The syntheses and characterisation of the [ω‐(phosphanyl)alkyl]cyclopentadienyl anions 2, 3, 6–8, 10, and 11 are described. These anions form metallocenes 12–15 and 17–19 with FeCl2 · 2 THF and with ZrCl4 · 2 THF, respectively. With ICo(CO)4 chelated carbonbyl complexes 23–25, 28, and 29 are formed. The unchelated intermediate 20 has been detected by IR spectroscopy. The carbonyl chelate complexes are thermally stable. Under photochemical conditions, ligand exchange reactions are possible which in the case of 1,5‐cyclooctadiene proceed with decomplexation of the phosphane arm. This does not prevent a reaction at the cobalt(I) atom; treatment of 35 with diphenylethyne gives the corresponding tetraphenylcyclobutadiene complex 36 in good yield, the phosphane arm remaining uncoordinated.
AB - The syntheses and characterisation of the [ω‐(phosphanyl)alkyl]cyclopentadienyl anions 2, 3, 6–8, 10, and 11 are described. These anions form metallocenes 12–15 and 17–19 with FeCl2 · 2 THF and with ZrCl4 · 2 THF, respectively. With ICo(CO)4 chelated carbonbyl complexes 23–25, 28, and 29 are formed. The unchelated intermediate 20 has been detected by IR spectroscopy. The carbonyl chelate complexes are thermally stable. Under photochemical conditions, ligand exchange reactions are possible which in the case of 1,5‐cyclooctadiene proceed with decomplexation of the phosphane arm. This does not prevent a reaction at the cobalt(I) atom; treatment of 35 with diphenylethyne gives the corresponding tetraphenylcyclobutadiene complex 36 in good yield, the phosphane arm remaining uncoordinated.
KW - Anions, [ω‐(phosphanyl)alkyl]cyclopentadienyl
KW - Cobalt(I) chelate complexes
KW - Cobalt, [ω‐(phosphanyl)alkyl]cyclopentadienyl complexes
KW - Iron, [ω‐(phosphanyl)alkyl]cyclopentadienyl complexes
KW - Zirconium, [ω‐(phosphanyl)alkyl]cyclopentadienyl complexes
UR - http://www.scopus.com/inward/record.url?scp=84989448048&partnerID=8YFLogxK
U2 - 10.1002/cber.19931260725
DO - 10.1002/cber.19931260725
M3 - Article
AN - SCOPUS:84989448048
VL - 126
SP - 1657
EP - 1669
JO - Chemische Berichte
JF - Chemische Berichte
SN - 0009-2940
IS - 7
ER -