The paper reviews the research carried out on polar molecular solids: low-molecular weight molecular crystals and polymers, the attention being focused on details of their molecular architecture leading to a possible appearance of ferroelectricity. Possible directions of search for molecular ferooelectrics are discussed in the paper: it is believed that novel ferroelectric materials may be sought among crystals built of molecules undergoing subtle conformational changes, and in weak CT complexes undergoing specific phase transitions.
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J. Sworakowski (1992) studied this question.
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