An investigation of the binding of (S)-monothioBINOLate to rare earth metal cations

Abstract

Two novel rare earth compounds have been synthesized using the previously reported (S)-MonoThioBINOL [(S)-H₂-MTB], (S)-2-hydroxy-2′-mercapto-1,1′-binaphthyl). We have shown here that while the H-bonded complex containing TMG-H⁺ (tetramethyl guanidium cation) maintains the structure that the analogous BINOLate complex adopts, the complex with lithium cations in the secondary coordination sphere crystallizes as an ‘–ate’ complex with an outer sphere lithium counter cation solvated by DME.

GRAPHICAL ABSTRACT

Keywords:

• Rare earth
• monothioBINOL
• hydrogen bonding
• anionic

Additional information

Funding

This work was supported by the National Science (CHE-1464744 to PJW, CHE-1664928 to EJS, and Graduate Research Fellowship Program).