The rotameric (R*,S*)- and (R*,R*)-biaryl-3,3′-diphthalides of polyphenylene seriesTagir A. Yangirov & Akhnef A. Fatykhov & Elvira A. Sedova & Leonard M. Khalilov & Ekaterina S. Meshcheryakova & Sergey P. Ivanov & Sergey N. Salazkin & Vladimir A. Kraikin2019PDF