An oxorhenium complex bearing a chiral cyclohexane-1-olato-2-thiolato ligand: Synthesis, stereochemistry, and theoretical study of parity violation vibrational frequency shifts

作者：Saleh Nidal; Bast Radovan^*; Vanthuyne Nicolas; Roussel Christian; Saue Trond; Darquie Benoit^*; Crassous Jeanne^*

来源：Chirality, 2018, 30(2): 147-156.

DOI：10.1002/chir.22785

• chiral oxorhenium
• Methyltrioxorhenium
• parity violation
• relativistic quantum chemical calculations
• vibrational circular dichroism

In our effort towards measuring the parity violation energy difference between two enantiomers, a simple chiral oxorhenium complex 5 bearing enantiopure 2-mercaptocyclohexan-1-ol has been prepared as a potential candidate species. Vibrational circular dichroism revealed a chiral environment surrounding the rhenium atom, even though the rhenium is not a stereogenic center itself, and enabled to assign the (1S,2S)-(-) and (1R,2R)-(+) absolute configuration for 5. For both compound 5 and complex 4, previously studied by us and bearing a propane-2-olato-3-thiolato ligand, relativistic calculations predict parity violating vibrational frequency differences of a few hundreds of millihertz, above the expected sensitivity attainable by a molecular beam Ramsey interferometer that we are constructing.

• 出版日期2018-2