Terminal electron acceptor, description

The electron acceptors discussed so far resemble these terminal polar compounds in their structure, or are even identical. Cladis, for example, has studied the phase behavior of mixtures of butyloxybenzylidene octyl-aniline with cyanooctyloxybiphenyl showing stabilized smectic phases of the A- and B-type, as well as an induced SmE phase the results are summarized in a Landau description [23 g]. However, the phase behavior of this particular system, strongly related to that studied by Park et al. [8], is discussed in terms of dipolar pair formation. Furthermore, the phase behavior and macroscopic properties, e.g., densities and rotational viscosities, in mixtures of polar 4-cyano derivatives of biphenyl with apolar azoxy compounds, were found to differ significantly from those comprising the relat-... 

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