Cyclopropene (la-e) reagieren mit Fe,(CO), im Molverhaltnis 1 : 1 unter Offnung des Dreirings und CO-Einschiebung zu (q : q '-Allylcarbony1)tricarbonyleisen-Komplexen (2 a -e). Die Struktur von Tricarbonyl(q3: q '-1,2,3-triphenylallylcarbonyl)eisen (2d) wurde rontgenographisch bestimmt. -3-Phenylsubstituierte Cyclopropene ( I d -f) reagieren mit iiberschiissigem Fe,(CO), zu Hexacarbonyl-p-(q2-phenyl-q3: q '-ally1)-dieisen(Fe -Fe)-Komplexen (4d -f). 4d und e entstehen auch aus 2d und e mit weiterem Fe,(CO),. Die Kristallstruktur von Hexacarbonylp-(I q2,2,3-triphenyl-q3 :q '-al1yl)-dieisen(Fe -Fe) (4d) wurde gleichfalls ermittelt. Cyclopropenes (la-e) react with Fe,(CO), in the molar ratio 1 : 1 to give (q3:q1-allylcarbonyl)-tricarbonyliron compounds (2a-e) with opening of the three-membered ring and insertion of CO. The structure of tricarbonyl(q3: q '-1,2,3-triphenylallylcarbonyl)iron (2d) has been determined by X-ray analysis. -3-Phenyl-substituted cyclopropenes (Id -f) react with excess Fe,(CO), to give hexacarbonyl-p-(q2-phenyl-q3 : q '-allyl)diiron(Fe -Fe) complexes (4d -f). 4d and e are also formed from2d and e with additional Fe,(CO),. The crystal structure of hexacarbonylp-( 1 q 2,2,3-triphenyl-q3 : q '-ally1)-diiron(Fe -Fe) (4d) has also been determined.
Cyclopropenes as Complex Ligands
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