Abstract
Crystals of 1,8-bis(dimethylaminomethyl)naphthalene (DMAMN) pentachlorophenolate were grown from acetonitrile. The space group is C2 c . The unit cell parameters are a = 23.267(5), b = 8.848(2), c = 22.385(5) A ̊ , β = 92.73(2)°, Z = 8. The NHN + intramolecular hydrogen bonding distance is 2.609(5) Å. The bridge H atom is localized close to the centre of the bridge: r N(1)−H = 1.24(5), r N(2)− H = 1.38(5) A ̊ . In the IR absorption spectrum there is a lack of absorption above 1700 cm −1. Low-frequency broad absorption in the fingerprint region is observed. These results are compared with those reported for other DMAMN salts where hydrogen bonding is markedly longer.
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