Benchmarking of Halogen Bond Strength in Solution with Nickel Fluorides: Bromine versus Iodine and Perfluoroaryl versus Perfluoroalkyl Donors.

ABSTRACT: The energetics of halogen bond formation in solution have been investigated for a series of nickel fluoride halogen bond acceptors; trans-[NiF(2-C₅ NF₄ )(PEt₃ )₂ ] (A1), trans-[NiF{2-C₅ NF₃ (4-H)}(PEt₃ )₂ ] (A2), trans-[NiF{2-C₅ NF₃ (4-NMe₂ )}(PEt₃ )₂ ] (A3) and trans-[NiF{2-C₅ NF₂ H(4-CF₃ )}(PCy₃ )₂ ] (A4) with neutral organic halogen bond donors, iodopentafluorobenzene (D1), 1-iodononafluorobutane (D2) and bromopentafluorobenzene (D3), in order to establish the significance of changes from perfluoroaryl to perfluoroalkyl donors and from iodine to bromine donors. ¹⁹ F NMR titration e

SUBMITTER: Pike SJ 

PROVIDER: S-EPMC6771525 | biostudies-literature | 2019 Jul

REPOSITORIES: biostudies-literature