Investigation of structures of the self-assembled pseudorotaxane of cucurbiturils with some alkyldiamines
- 化学化工－已发表论文 
The structures of self-assembled pseudorotaxane of cucurbit [n] urils ( n = 6 similar to 8) with some alkyldiamines have been investigated by H-1 NMR technique and single crystal X-ray diffraction method. The results reveal that the interaction between cucurbituril or cucurbituril and 1,7-diaminoheptane or 1,8-diaminooctane is stronger than that between cucurbit[ 8] uril and 1,7-diaminoheptane or 1, 8-diaminooctane, and the pseudorotaxanes of cucurbit[n] urils with the alkyldiamines were observed. Particularly, in the pseudorotaxane of cucurbit  uril with 1, 8-diaminooctane, the amino groups of 1, 8-diaminooctane are left outside the ports of cucurbit  uril.