Bimetallic iron complexes with carboxyethylene bridges

Journal Article · Mon Jun 01 00:00:00 EDT 1992 · Organometallics

DOI:https://doi.org/10.1021/om00042a007· OSTI ID:458720

Gibson, D H; Franco, J O; Harris, M T; Ong, Tek-Sing ^[1]

---

1. Univ. of Louisville, KY (United States)

Reactions of the iron metallocarboxylate anion CpFe(CO)(PPh{sub 3})COO{sup {minus}}K{sup +} (1) with ethylene-coordinated cations CpFe(CO)(L)(C{sub 2}H{sub 4}){sup +}BF{sub 4}{sup {minus}} (L = PPh{sub 3}, P(OPh){sub 3}) yield bimetallic complexes with a carboxyethylene bridge (3a,b); a pair of diastereomers, formed in nearly equal amounts, is produced in each case. Reactions of the bimetallic compounds with excess HBF{sub 4} yield CpFe(CO){sub 2}(PPh{sub 3}){sup +}BF{sub 4}{sup {minus}} and CpFe(CO)(L)(C{sub 2}H{sub 4}){sup +}BF{sub 4}{sup {minus}}. Methanolysis of the carboxyethylene complexes yields CpFe(CO)(PPh{sub 3})COOCH{sub 3} and CpFe(CO)(L)CH{sub 2}CH{sub 2}OCH{sub 3} (7a,b). Solvolysis of the latter compounds in ethanol gives the corresponding ethoxyethyl complexes 8a,b. All new compounds have been fully characterized. 11 refs.

• Sponsoring Organization: USDOE
• OSTI ID: 458720
• Journal Information: Organometallics, Journal Name: Organometallics Journal Issue: 6 Vol. 11; ISSN ORGND7; ISSN 0276-7333
• Country of Publication: United States
• Language: English

Related Subjects

40 CHEMISTRY
CHEMICAL REACTIONS
CRYSTAL STRUCTURE
IRON COMPLEXES
ORGANOMETALLIC COMPOUNDS
STEREOCHEMISTRY
X-RAY DIFFRACTION