Anion Binding Modes in meso-Substituted Hexapyrrolic Calix[4]pyrrole Isomers
نویسندگان
چکیده
منابع مشابه
Anion-binding modes in a macrocyclic amidourea.
A macrocyclic amidourea shows anion dependent binding modes with a variety of different putative anionic guests.
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Different enamines were introduced at the meso position of the BODIPY by catalyst free oxidation of tert-amines and in situ cross coupling with 8-chloro BODIPY. The reaction conditions were optimized to achieve better yields. The reaction works well with aliphatic tert-amines bearing an N-(CH-CH-) backbone. The N-alkyl substituents perturb the optical properties of enamine substituted BODIPYs.
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Two distinct hydrogen-bonding modes, end-on and end-to-end coordination, have been observed in the complexation between macrocycles and polyatomic anions such as azide and oxoanions.
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Novel dihydro-1,3-oxazinoporphyrins and naphtho[e]bis(dihydro-1,3-oxazinoporphyrin) derivatives, in which the porphyrin macrocycle is covalently linked to the dihydro-1,3-oxazine ring system were successfully synthesized from 5-(4-aminophenyl)-10,15,20-triphenylporphyrin in good yields. The structures of the target products were established on the basis of spectral data and elemental analyses.
متن کاملSynthesis, structure, anion binding, and sensing by calix[4]pyrrole isomers.
The synthesis, structure, and anion binding properties of chromogenic octamethylcalix[4]pyrroles (OMCPs) and their N-confused octamethylcalix[4]pyrrole isomers (NC-OMCPs) containing an inverted pyrrole ring connected via alpha'- and beta-positions are described. X-ray diffraction analyses proved the structures of two synthesized isomeric pairs of OMCPs and NC-OMCPs. The addition of anions to so...
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ژورنال
عنوان ژورنال: Journal of the American Chemical Society
سال: 2014
ISSN: 0002-7863,1520-5126
DOI: 10.1021/ja411391c