By changing the 0-alkyl substituents of the carbamate moiety of alkyl N-{2-{4-[(2-oxocyclohexyl)methyl]phenoxy}ethyl}carbamates and subsequent transformation of the 0x0 group in the cyclohexyl substituent, the juvenoids 1-20 were synthesized (Scheme). The methyl (la), propyl (%12), isopropyl (1>16),
Control of the J-Aggregation Phenomenon by variation of the N-alkyl-substituents
✍ Scribed by Umberto De Rossi; Johannes Moll; Monika Spieles; Günther Bach; Prof. Dr. Siegfried Dähne; Jörg Kriwanek; Maria Lisk
- Publisher
- John Wiley and Sons
- Year
- 1995
- Tongue
- English
- Weight
- 509 KB
- Volume
- 337
- Category
- Article
- ISSN
- 1615-4150
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📜 SIMILAR VOLUMES
The spectroscopic aggregation number (coherence length) and physical size of the J-aggregates of anionic mesotetrakis(4-sulphonatophenyl)porphyrin (H 4 TPPS 2À ) are controlled by ammonium ion concentration. The contributions of absorption and scattering are determined using the extinction and reson
## Abstract A series of porphyrins with three maltohexaose units and one alkyl chain (ethyl, butyl, hexyl, decyl, and hexadecyl) has been synthesized. Aggregation properties were investigated by absorbance and circular dichroism (CD) spectra. These trismaltohexaosylated tetraphenylporphyrins exhibi