Diiron Azamonothiolates via Scission of Dithiadiazacyclooctanes by Iron Carbonyls

The reaction of Fe (CO) with the dithiadiazacyclooctanes [SCH N(R)CH ] affords Fe [SCH N(Me)CH ](CO) (R = Me, Bn). The methyl derivative was characterized crystallographically (Fe-Fe = 2.5702(5) Å). Its low symmetry is verified by variable temperature C NMR spectroscopy which revealed that the turns...

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Published inEuropean journal of inorganic chemistry Vol. 2015; no. 25; pp. 4109 - 4114
Main Authors Lin, Tai, Ulloa, Olbelina A, Rauchfuss, Thomas B, Gray, Danielle L
Format Journal Article
LanguageEnglish
Published Germany 01.09.2014
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Summary:The reaction of Fe (CO) with the dithiadiazacyclooctanes [SCH N(R)CH ] affords Fe [SCH N(Me)CH ](CO) (R = Me, Bn). The methyl derivative was characterized crystallographically (Fe-Fe = 2.5702(5) Å). Its low symmetry is verified by variable temperature C NMR spectroscopy which revealed that the turnstile rotation of the S(CH )Fe and S(NMe)Fe centers are subject to very different energy barriers. Although resists protonation, it readily undergoes substitution by tertiary phosphines, first at the S(CH )Fe(CO) center, as verified crystallographically for Fe [SCH N(Me)CH ](CO) (PPh ). Substitution by the chelating diphosphine dppe (Ph PCH CH PPh ) gave Fe [SCH N(Me)CH ](CO) (dppe), resulting from substitution at both the S(CH )Fe(CO) and S(NMe)Fe(CO) sites.
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content type line 23
ISSN:1434-1948
1099-0682
DOI:10.1002/ejic.201402413