A Specific π-Ligand Transfer Reaction via Triple-Decker Sandwich Complex Intermediates

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Title:A Specific π-Ligand Transfer Reaction via Triple-Decker Sandwich Complex Intermediates
Creators:
Böhm, Dieter
Heinemann, Frank
Hu, Dongqi
Kummer, Susanne
Zenneck, Ulrich
Journal or Publication Title:
Collection of Czechoslovak Chemical Communications, 62, 2, pp. 309-317
Uncontrolled Keywords:Triphospholyl complexes, Triple-Decker sandwich complexes, Iron compounds

Abstract

Photochemically generated cationic cyclopentadienyl iron fragments [FeCp]<sup>+</sup> allow a specific stacking reaction of [(<i>t</i>-Bu<sub>3</sub>C<sub>3</sub>P<sub>2</sub>)Fe(<i>t</i>-Bu<sub>2</sub>C<sub>2</sub>P<sub>3</sub>)]. This results in the transient formation of an unstable cationic Fe-Fe triple-decker sandwich complex which decomposes by deliberating the neutral sandwich complex [CpFe(<i>t</i>-Bu<sub>2</sub>C<sub>2</sub>P<sub>3</sub>)], and is stacked again by a second [FeCp]<sup>+</sup>-unit, yielding the moderately stable cationic triple-decker sandwich complex [CpFe(<i>t</i>-Bu<sub>2</sub>C<sub>2</sub>P<sub>3</sub>)FeCp]<sup>+</sup> with a central mi-eta<sup>5</sup>:eta<sup>5</sup>-triphospholyl ligand. Air exposure or storage of solutions at room temperature leads to a destacking and the neutral triphosphaferrocene derivative [CpFe(<i>t</i>-Bu<sub>2</sub>C<sub>2</sub>P<sub>3</sub>)] is formed again almost quantitatively in respect to the pentaphospha-ferrocene educt.

Title:A Specific π-Ligand Transfer Reaction via Triple-Decker Sandwich Complex Intermediates
Creators:
Böhm, Dieter
Heinemann, Frank
Hu, Dongqi
Kummer, Susanne
Zenneck, Ulrich
Uncontrolled Keywords:Triphospholyl complexes, Triple-Decker sandwich complexes, Iron compounds
Divisions:Life and Chemical Sciences > Institute of Organic Chemistry and Biochemistry > Collection of Czechoslovak Chemical Communications
Journal or Publication Title:Collection of Czechoslovak Chemical Communications
Volume:62
Number:2
Page Range:pp. 309-317
ISSN:0010-0765
E-ISSN:1212-6950
Publisher:Institute of Organic Chemistry and Biochemistry
Related URLs:
URLURL Type
http://dx.doi.org/10.1135/cccc19970309UNSPECIFIED
ID Code:1116
Item Type:Article
Deposited On:06 Feb 2009 17:06
Last Modified:06 Feb 2009 16:06

Citation

Böhm, Dieter; Heinemann, Frank; Hu, Dongqi; Kummer, Susanne; Zenneck, Ulrich (1997) A Specific π-Ligand Transfer Reaction via Triple-Decker Sandwich Complex Intermediates. Collection of Czechoslovak Chemical Communications, 62 (2). pp. 309-317. ISSN 0010-0765

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