Substituent Effects on Absorption Spectra of 7-Amino-4-Hydroxynaphthalene-2- Sulfonic Acid Based Dyes
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چکیده
منابع مشابه
Substituent effects in stilbene-based merocyanine dyes
Students in organic chemistry are taught a number of fundamental principles concerning the factors which govern the properties of organic compounds. Among these principles is the effect of substituents on the properties of aromatic rings, especially the benzene ring. For instance, we teach the students that the reactivity of the benzene molecule towards electrophilic substitution reactions is e...
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متن کامل4-Amino-2-chlorobenzoic acid
The title compound, C(7)H(6)ClNO(2), crystallizes with two roughly planar mol-ecules in the asymmetric unit (r.m.s. deviations = 0.073 and 0.074 Å). The amine H atoms of the two mol-ecules have opposite orientations. In the crystal, mol-ecules are linked into dimers by pairs of O-H⋯O hydrogen bonds, generating R(2) (2)(8) loops. N-H⋯N and N-H⋯Cl hydrogen bonds link the dimers into a three-dimen...
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Anthraquinone (AQ) derivatives play a prominent role in medicine and also in textile industry. Bromaminic acid (1-amino-4-bromoanthraquinone-2-sulfonic acid) is an important precursor for obtaining dyes as well as biologically active compounds through the replacement of the C4-bromo substituent with different (ar)alkylamino residues. Here we report methods for the synthesis of bromaminic acid a...
متن کامل2-Amino-4-chlorobenzoic acid
The title compound, C(7)H(6)ClNO(2), is almost planar, with an r.m.s. deviation of 0.040 Å. An intra-molecular N-H⋯O hydrogen bond generates an S(6) ring motif. In the crystal, mol-ecules are linked into centrosymmetric dimers by pairs of O-H⋯O hydrogen bonds. These dimers are stacked along [010].
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ژورنال
عنوان ژورنال: Journal of Applied Sciences and Environmental Management
سال: 2020
ISSN: 2659-1502,1119-8362
DOI: 10.4314/jasem.v24i7.17