{"database":"biostudies-literature","file_versions":[],"scores":null,"additional":{"submitter":["Hierlmeier G"],"funding":["Deutsche Forschungsgemeinschaft","European Research Council","European Commission","Verband der Chemischen Industrie"],"pagination":["776-784"],"full_dataset_link":["https://www.ebi.ac.uk/biostudies/studies/S-EPMC8965875"],"repository":["biostudies-literature"],"omics_type":["Unknown"],"volume":["41(6)"],"pubmed_abstract":["The modification of cyclopentadienyl ligands with carefully selected substituents is a widely used strategy for tuning their steric and electronic properties. We describe the synthesis of an extremely bulky penta-terphenyl cyclopentadienyl ligand (Cp<sup>T5</sup>) by arylation of cyclopentadiene. Deprotonation reactions with various group 1 metals and bases afforded a complete series of alkali metal salts MCp<sup>T5</sup> (M = Li-Cs). The compounds were isolated as solvate-free salts, which were characterized by multinuclear nuclear magnetic resonance spectroscopy, ultraviolet-visible spectroscopy, and elemental analysis. Single-crystal X-ray diffraction studies of LiCp<sup>T5</sup>, NaCp<sup>T5</sup> (crystallized as a solvate with one tetrahydrofuran molecule per formula unit), and KCp<sup>T5</sup> revealed the formation of metallocene-like sandwich structures in the solid state."],"journal":["Organometallics"],"pubmed_title":["Bulking up Cp<sup>BIG</sup>: A Penta-Terphenyl Cyclopentadienyl Ligand."],"pmcid":["PMC8965875"],"funding_grant_id":["ERC CoG 772299","772299","426795949"],"pubmed_authors":["Wolf R","Hierlmeier G"],"additional_accession":[]},"is_claimable":false,"name":"Bulking up Cp<sup>BIG</sup>: A Penta-Terphenyl Cyclopentadienyl Ligand.","description":"The modification of cyclopentadienyl ligands with carefully selected substituents is a widely used strategy for tuning their steric and electronic properties. We describe the synthesis of an extremely bulky penta-terphenyl cyclopentadienyl ligand (Cp<sup>T5</sup>) by arylation of cyclopentadiene. Deprotonation reactions with various group 1 metals and bases afforded a complete series of alkali metal salts MCp<sup>T5</sup> (M = Li-Cs). The compounds were isolated as solvate-free salts, which were characterized by multinuclear nuclear magnetic resonance spectroscopy, ultraviolet-visible spectroscopy, and elemental analysis. Single-crystal X-ray diffraction studies of LiCp<sup>T5</sup>, NaCp<sup>T5</sup> (crystallized as a solvate with one tetrahydrofuran molecule per formula unit), and KCp<sup>T5</sup> revealed the formation of metallocene-like sandwich structures in the solid state.","dates":{"release":"2022-01-01T00:00:00Z","publication":"2022 Mar","modification":"2025-04-19T09:20:08.838Z","creation":"2025-04-19T09:20:08.838Z"},"accession":"S-EPMC8965875","cross_references":{"pubmed":["35368714"],"doi":["10.1021/acs.organomet.2c00009"]}}