Formation of a cyclooctatetraenylsamarium(III) inverse sandwich that ring-opens tetrahydrofuran

Ramees Peedika Paramban; Zhifang Guo; Glen B Deacon; Peter C Junk

doi:10.1039/d2dt04164b

Formation of a cyclooctatetraenylsamarium(III) inverse sandwich that ring-opens tetrahydrofuran

Dalton Trans. 2023 Mar 21;52(12):3563-3566. doi: 10.1039/d2dt04164b.

Authors

Ramees Peedika Paramban¹, Zhifang Guo¹, Glen B Deacon², Peter C Junk¹

Affiliations

¹ College of Science & Engineering, James Cook University, Townsville, QLD, 4811, Australia. peter.junk@jcu.edu.au.
² School of Chemistry, Monash University, Clayton, VIC, 3800, Australia.

PMID: 36637021
DOI: 10.1039/d2dt04164b

Abstract

Reductive trapping of the cyclooctatetraenyl dianion (COT^2-) by treatment of [Sm(DippForm)₂(thf)₂] (DippFormH = N,N'-bis(2,6-diisopropylphenyl)formamidine; thf = tetrahydrofuran) with 1,3,5,7-cyclooctatetraene (C₈H₈) in toluene yields an inverse sandwich dinuclear complex [Sm₂(DippForm)₄(COT)] (1), but [Sm(DippForm)(COT)(thf)₂] (2) and [Sm(DippForm)₂(O-C₄H₈-DippForm)(thf)] (3) in thf, and 1 yields 2 and 3 on treatment with thf.