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Similarly, solutions of compound <jats:bold>1</jats:bold> in toluene at 10 °C and in benzene at 8 °C furnished the cyclic tetramer with the incorporation of toluene and benzene molecules, respectively, thus suggesting that the cyclic tetramer was the minor component. <jats:sup>13</jats:sup>C CP/MAS NMR spectroscopy of precipitates of compound <jats:bold>1</jats:bold> suggested that precipitation from acetone and toluene each afforded mixtures of the cyclic trimer and the cyclic tetramer, whereas precipitation from benzene exclusively furnished the cyclic tetramer. Therefore, it appeared that crystallization readily shifted the equilibrium towards the cyclic tetramer in benzene. The thermodynamic parameters for the equilibrium between these two oligomers in [D<jats:sub>6</jats:sub>]benzene, as determined from a van′t Hoff plot, were Δ<jats:italic>H</jats:italic>°=−8.8 kcal mol<jats:sup>−1</jats:sup> and Δ<jats:italic>S</jats:italic>°=−23.7 cal mol<jats:sup>−1</jats:sup> K<jats:sup>−1</jats:sup>, which were coincident with previously reported calculations and observations.</jats:p>"}]}],"creator":[{"@id":"https://cir.nii.ac.jp/crid/1380285704923726345","@type":"Researcher","foaf:name":[{"@value":"Shigeharu Wakabayashi"}],"jpcoar:affiliationName":[{"@value":"Department of Clinical Nutrition Faculty of Health Science Suzuka University of Medical Science  Suzuka Mie 510-0293 Japan"}]},{"@id":"https://cir.nii.ac.jp/crid/1380285704923726472","@type":"Researcher","foaf:name":[{"@value":"Natsu Sugiyama"}],"jpcoar:affiliationName":[{"@value":"Department of Clinical Nutrition Faculty of Health Science Suzuka University of Medical Science  Suzuka Mie 510-0293 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