Synthesis, Structure, and Characterization of Tris(1-ethyl-4-isopropyl-imidazolyl-κN)phosphine Nickel(II) Complexes.

ABSTRACT: In this work we report the synthesis of five new nickel(II) complexes all coordinated to the tripodal ligand tris(1-ethyl-4- ⁱ Pr-imidazolyl)phosphine (TlEt4iPrIP). They are [Ni(T1Et4iPrIP)(CH₃CN)₂(OTf)](OTf) (1), [Ni(T1Et4iPrIP)(OTf)₂] (2), [Ni(T1Et4iPrIP)(H₂O)(OTf)](OTf) (3), [Ni(T1Et4iPrIP)Cl](OTf) (4), and [Ni(T1Et4iPrIP)Cl₂] (5). The complexes serve as bioinorganic structural model complexes for histidine-coordinated nickel proteins. The X-ray structures have been determine for all complexes which feature coordination numbers 4-6. We investigated the spectroscopic interconversions for these compound in dichloromethane solution and demonstrate interconversion between 1-3 a

SUBMITTER: Banerjee A 

PROVIDER: S-EPMC6867055 | biostudies-literature | 2019 Apr

REPOSITORIES: biostudies-literature