Abstract
Abstract The structure of the inclusion compound of 2,2′-bis(9-hydroxy-9-fluorenyl)biphenyl (1) with diethyl ether (2) (1:1) is reported. Crystal data: monoclinic, P21/n with a = 11.728(7), b = 20.471(4), c = 14.334(8) Å, β = 109.23(7)°, Z = 4, Dc = 1.20 g cm−3. The final R value was 0.045 for 3479 reflections. The inclusion compound displays a high thermal stability. The enthalpy of the guest release reaction and the activation energy of thermal decomposition have been measured. The crystal structure shows diethyl ether to be tightly packed in cavities formed by the host compound. The structure is further stabilized by host-guest hydrogen bonding.
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