Senthooran, RathigaCurnow, OwenCrittenden, Deborah2023-03-152023-03-152021Senthooran R, Curnow OJ, Crittenden DL (2021). Discrete Oligomers and Polymers of Chloride Monohydrate Can Form in Encapsulated Environments: Structures and Infrared Spectra of [Cl4(H2O)4] 4– and {[Cl(H2O)]–}∞. ChemPlusChem. 86(9). 1297-1306.2192-6506https://hdl.handle.net/10092/105231A discrete tetrachloride tetrahydrate cluster, [Cl4(H2O)4]4−, was obtained with a partially-fluorinated triaminocyclopropenium cation, [C3(N(CH2CF3)2)(NEt2)(NPr2)]+. The cluster consists of a [Cl2(H2O)2]2− square with each Cl− coordinated by another H2O bridged to another Cl−. A 1D polymer of chloride monohydrate, {[Cl(H2O)]−}∞, was obtained with [C3(N(CH2CF3)2)2(NBuMe)]+. The tetrameric and polymeric structures were found to be computationally-unstable in the gas phase which indicates that an encapsulated environment is essential for their isolation. DFT and DFTB calculations were carried out on gas-phase [Cl4(H2O)4]4− to assist the infrared assignments. Anharmonically-corrected B3LYP transition frequencies were in close agreement with experiment, but DFTB models were only appropriate for qualitative interpretation. Solid-state DFTB calculations allowed the vibrational modes to be assigned. The results found are consistent with “discrete” chloride hydrates.enAll rights reserved unless otherwise statedX-ray diffractionchloridehydrateinfraredsolvateJournal Article2023-02-1303 Chemical SciencesFields of Research::34 - Chemical sciences::3402 - Inorganic chemistry::340202 - CrystallographyFields of Research::34 - Chemical sciences::3401 - Analytical chemistry::340101 - Analytical spectrometryFields of Research::34 - Chemical sciences::3403 - Macromolecular and materials chemistry::340306 - Polymerisation mechanismsFields of Research::34 - Chemical sciences::3402 - Inorganic chemistry::340208 - Non-metal chemistryhttp://doi.org/10.1002/cplu.202100342