Figure 3.
Constrained geometry optimized structures for [(ImH)2Zn–S(H)CH3]2+ and [(ImH)3Zn–S(H)CH3]2+ on the left and the deprotonated [(ImH)2Zn–SCH3]+ and [(ImH)3Zn–SCH3]+ complexes on the right, at S–Zn–(ImH)n angles of 95° (1st and 3rd set) and 125° (2nd and 4th set). Selected bonding parameters (in Angstroms) at the M05-2X/cc-pVDZ level of theory.