Variable Ca-C_aryl Hapticity and its Consequences in Arylcalcium Dimers.

ABSTRACT: The dimeric β-diketiminato calcium hydride, [(^Dipp BDI)CaH]₂ (^Dipp BDI = HC{(Me)CN-2,6-i-Pr₂ C₆ H₃ }₂ ), reacts with ortho-, meta- or para-tolyl mercuric compounds to afford hydridoarylcalcium compounds, [(^Dipp BDI)₂ Ca₂ (μ-H)(μ-o-,m-,p-tolyl)], in which dimer propagation occurs either via μ₂ -η¹ -η¹ or μ₂ -η¹ -η⁶ bridging between the calcium centers. In each case, the orientation and hapticity of the aryl units is dependent upon the position of the methyl substituent. While wholly organometallic meta- and para-tolyl dimers, [(^Dipp BDI)Ca(m-tolyl)]₂ and [(^Dipp BDI)Ca(p-tolyl)]_2</

SUBMITTER: Pearce KG 

PROVIDER: S-EPMC10625118 | biostudies-literature | 2023 Nov

REPOSITORIES: biostudies-literature