title: Handedness inversion in preparing mesoporous silica nanoribbons.
abstract: A new chiral cationic amphiphile has been synthesized. Sol-gel transcriptions were carried out to control mesoporous silica nanostructures using the organic self-assemblies of this amphiphile as templates. Left-handed coiled mesoporous silica nanoribbons were obtained in the mixture of 1-propanol and 2.5 wt% NH(3) aq. at the ratio of 2:8 and 0 °C. However, right-handed coiled mesoporous silica nanoribbons were prepared in 2.5 wt% NH(3) aq. at 25 °C. The organization of the low-molecular-weight gelators plays an important role in this handedness inversion.
authors.affiliation: Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry and Chemical Engineering, Suzhou (Soochow) University, Suzhou 215123, People's Republic of China.
authors.forename: Yuanli
authors.initials: Y
authors.lastname: Chen
authors.forename: Yongmin
authors.initials: Y
authors.lastname: Guo
authors.forename: Huanyu
authors.initials: H
authors.lastname: Zhao
authors.forename: Lifeng
authors.initials: L
authors.lastname: Bi
authors.forename: Xianfeng
authors.initials: X
authors.lastname: Pei
authors.forename: Baozong
authors.initials: B
authors.lastname: Li
authors.forename: Yonggang
authors.initials: Y
authors.lastname: Yang