1380225-89-7Relevant academic research and scientific papers
Inclusion compound based approach to arrays of artificial dipolar molecular rotors. A surface inclusion
Kobr, Lukas,Zhao, Ke,Shen, Yongqiang,Comotti, Angiolina,Bracco, Silvia,et al.
, p. 10122 - 10131 (2012/08/08)
We describe an approach to regular triangular arrays of dipolar molecular rotors based on insertion of dipolar rotator carrying shafts as guestsinto channels of a host, tris(o-phenylenedioxy)cyclotriphosphazene (TPP ). The rotor guests can either enter the bulk of the host or stay at or near the surface, if a suitable stopper is installed at the end of the shaft. Differential scanning calorimetry, solid-state NMR, and powder X-ray diffraction were used to examine the insertion of a dipolar rotor synthesized for the purpose, 1-n-hexadecyl-12-(2,3-dichlorophenyl)-p-dicarba-closo-dodecaborane, and it was found that it forms a surface inclusioncompound. Rotational barriers from 1.2 to 9 kcal/mol were found by diel ectric spectroscopy and were attributed to rotors inserted into the surface to different degrees, some rubbing the surface as they turn.
