National Creative Research Initiative Center for Smart Supramolecules (CSS), Department of Chemistry and Division of Advanced Materials Science (WCU project), Pohang University of Science and Technology (POSTECH), Pohang 790-784, Republic of Korea.
Chem Commun (Camb). 2010 Jun 21;46(23):4091-3. doi: 10.1039/c0cc00752h. Epub 2010 May 17.
The X-ray crystal structure of 1,12-dodecane diammonium (C(12)DA(2+)) encapsulated in cucurbit[8]uril reveals an unconventional U-shaped conformation of C(12)DA(2+), which is attributed to the favorable host-guest interactions to overcome the charge-charge repulsion of the two ammonium groups in close proximity and high internal strain.
1,12-十二烷二铵（C(12)DA(2+））包合物的 X 射线晶体结构揭示了 C(12)DA(2+）的非常规 U 形构象，这归因于有利的主客体相互作用，以克服两个靠近的铵基团之间的电荷排斥和高内应变。
