ICCAS OpenIR
Acidichromism in the Langmuir-Blodgett films of novel photochromic spiropyran and spirooxazine derivatives
Gong, HF; Wang, CM; Liu, MH; Fan, MG
2001
Source PublicationJOURNAL OF MATERIALS CHEMISTRY
ISSN0959-9428
Volume11Issue:12Pages:3049-3052
AbstractTwo novel photochromic spiropyran (SP) and spirooxazine (SO) derivatives without substituted long alkyl chains were synthesized. They can form stable Langmuir monolayers at the air-water interface and can be transferred to solid substrates successfully through vertical dipping as Z-type Langmuir-Blodgett (LB) films. LB films of both of the compounds showed typical photochromism. An additional acidichromism was found for the LB films. The LB film of SO turned red upon exposure to HCl gas. Consecutive exposure to NH3 gas caused the film to turn blue. The red colour and blue colour can be changed reversibly upon alternate exposure to HCl and NH3 gas. For the LB film of the SP derivative, due to the protection of the spiropyran by the substituted group, the acidichromism was not obvious in the initial exposure to the HCl and NH3 gases. However, after several repeated exposures to HCl and NH3 gas alternately, the acidichromism became obvious. This paper presents a new route for SO and SP LB films changing from the "spiro'' form to the merocyanine form through acidichromism besides the well-known photochromic route of this system.
Indexed BySCI
Language英语
WOS IDWOS:000172664200037
PublisherROYAL SOC CHEMISTRY
Citation statistics
Document Type期刊论文
Identifierhttp://ir.iccas.ac.cn/handle/121111/77800
Collection中国科学院化学研究所
Corresponding AuthorLiu, MH
Affiliation1.Chinese Acad Sci, Inst Chem, Ctr Mol Sci, Lab Colloid & Interface Sci, Beijing 100080, Peoples R China
2.CAS, Tech Inst Phys & Chem, Beijing 100101, Peoples R China
Recommended Citation
GB/T 7714
Gong, HF,Wang, CM,Liu, MH,et al. Acidichromism in the Langmuir-Blodgett films of novel photochromic spiropyran and spirooxazine derivatives[J]. JOURNAL OF MATERIALS CHEMISTRY,2001,11(12):3049-3052.
APA Gong, HF,Wang, CM,Liu, MH,&Fan, MG.(2001).Acidichromism in the Langmuir-Blodgett films of novel photochromic spiropyran and spirooxazine derivatives.JOURNAL OF MATERIALS CHEMISTRY,11(12),3049-3052.
MLA Gong, HF,et al."Acidichromism in the Langmuir-Blodgett films of novel photochromic spiropyran and spirooxazine derivatives".JOURNAL OF MATERIALS CHEMISTRY 11.12(2001):3049-3052.
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