SUPRAMOLECULAR COMPLEXATION OF N-ALKYL- AND N,N '-DIALKYLPIPERAZINES WITH CUCURBIT[6]URIL IN AQUEOUS SOLUTION AND IN THE SOLID STATE
SCIE
SCOPUS
- Title
- SUPRAMOLECULAR COMPLEXATION OF N-ALKYL- AND N,N '-DIALKYLPIPERAZINES WITH CUCURBIT[6]URIL IN AQUEOUS SOLUTION AND IN THE SOLID STATE
- Authors
- Rekharsky, MV; Yamamura, H; Mori, T; Sato, A; Shiro, M; Lindeman, SV; Rathore, R; Shiba, K; Ko, YH; Selvapalam, N; Kim, K; Inoue, Y
- Date Issued
- 2009-01
- Publisher
- WILEY-V C H VERLAG GMBH
- Abstract
- Complex stoichiometry/composition and degree of oligomerization (oligomeric supramolecular complex formation) of cucurbit[6]uril (CB[6]) with N-alkyl- and N,N'-dialkylpiperazine were investigated in aqueous solutions by means of isothermal titration calorimetry (ITC), ESI-MS, NMR and light scattering measurements. It was found that the complex stability and the degree of oligomerization increase with elongating the alkyl chain attached to the piperazine core. X-ray crystallographic studies revealed a clear correlation between the structure of CB[6]-alkylpiperazine crystals obtained from aqueous solutions and the molecular weight/properties of host-guest oligomers existed in the solution as supramolecular "seeds" of crystal formation.
- Keywords
- crystal design; cucurbiturils; host-guest systems; supramolecular chemistry; thermodynamics; CUCURBITURIL HOMOLOGS; ORGANIC-MOLECULES; HOST; CYCLODEXTRIN; BINDING; DERIVATIVES; INCLUSION; GUEST; ION; PSEUDOROTAXANES
- URI
- https://oasis.postech.ac.kr/handle/2014.oak/29114
- DOI
- 10.1002/chem.200800398
- ISSN
- 0947-6539
- Article Type
- Article
- Citation
- CHEMISTRY-A EUROPEAN JOURNAL, vol. 15, no. 8, page. 1957 - 1965, 2009-01
- Files in This Item:
- There are no files associated with this item.
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.