2014
DOI: 10.1039/c4sc01213e
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Activation of group 15 based cage compounds by [CpBIGFe(CO)2] radicals

Abstract: The sterically encumbered dimer [Cp BIG Fe(CO) 2 ] 2 (1) (Cp BIG ¼ C 5 (4-nBuC 6 H 4 ) 5 ) is able to activate small tetrahedral molecules like P 4 and As 4 as well as the less reactive cage compounds P 4 S 3 and P 4 Se 3 at room temperature to give the products [{Cp BIG Fe(CO) 2 } 2 (m,h 1:1 -cage)] (cage ¼ P 4 (2a), As 4 (2b), P 4 S 3 (2c), P 4 Se 3 (2d)) in a quantitative manner. The reaction proceeds via selective cleavage of one E-E bond (E ¼ P, As) of the starting material. Complex 1 also reacts with CS … Show more

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Cited by 60 publications
(40 citation statements)
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References 34 publications
(24 reference statements)
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“…In other cases, the reaction is promoted by organic radicals 22 including a transition metal fragment such as Cp(CO) 2 Fe, originating from the homolysis of its dimeric precursor and carrying an unpaired spin at the d 7 metal. 23 In this regard, other authors have remarked how an unassisted P 4 + I 2 reaction excludes the access to any radical species. 24 Also, the calculations corroborated such a result, since our attempts of isolating reaction radical intermediates invariably failed.…”
Section: Introductionmentioning
confidence: 99%
“…In other cases, the reaction is promoted by organic radicals 22 including a transition metal fragment such as Cp(CO) 2 Fe, originating from the homolysis of its dimeric precursor and carrying an unpaired spin at the d 7 metal. 23 In this regard, other authors have remarked how an unassisted P 4 + I 2 reaction excludes the access to any radical species. 24 Also, the calculations corroborated such a result, since our attempts of isolating reaction radical intermediates invariably failed.…”
Section: Introductionmentioning
confidence: 99%
“…[6] Seit der Isolierung des ersten Übergangsmetall-stabilisierten verbrückten P 4 -Butterfly-Komplexes [{Cp''Fe-(CO) 2 } 2 (m,h 1:1 -P 4 )] [7] wurde dessen Reaktivität unter thermischen [8] und photolytischen [7,9] Bedingungen als auch gegenüber verschiedenen Alkinen [10] untersucht. Allerdings wurde dessen Koordinationsverhalten gegenüber Lewis-Säuren bisher nicht studiert.…”
unclassified
“…3a) 31 . Additionally, P 4 @ C was reacted with [Cp BIG Fe(CO) 2 ] 2 (Cp BIG  = C 5 (4- n BuC 6 H 4 ) 5 ) at room temperature, analogously to the reported procedure 32 starting from dissolved P 4 , resulting in the quantitative synthesis of the P 4 butterfly complex [(Cp BIG Fe(CO) 2 ) 2 (μ,η 1:1 -P 4 )] (Fig. 3b).…”
Section: Discussionmentioning
confidence: 99%