Thiacalix[3]pyridine produces a stable mononuclear rhodium(II) complex with mutual Jahn-Teller effect

Thiacalix[3]pyridine (PY(3)S(3)) consists of pyridines and bridging sulfur atoms producing a stable octahedral mononuclear Rh(II) complex [Rh(II)(PY(3)S(3))(2)](2+) showing mutual Jahn-Teller effect, a metal based reversible redox couple of Rh(III/II) at 0.02 V vs. SCE and a g(perpendicular to) > g(parallel to) relationship in EPR measurements.