منابع مشابه
4-(4-Bromostyryl)-1-methylpyridinium tosylate
In the cation of the title compound, C14H13BrN(+)·C7H7O3S(-), the dihedral angle between the benzene and pyridine rings is 8.34 (11)°. The Br atom is disordered over two positions with site occupancies of 0.74 (2) and 0.26 (2). The mol-ecular structure is stabilized by a weak intra-molecular C-H⋯O inter-actions. The crystal structure exhibits weak C-H⋯O and π-π [centroid-centroid distance = 3.7...
متن کاملOxygen reaction of 4-hydroxybenzoate monooxygenase.
Among monooxygenases the flavin containing enzymes were the first being purified and crystallized since they consist of only one single protein in contrast to the multienzyme structure of the metal containing monooxygenases. Flavin plays a dual role in these enzymes acting as electron acceptor and oxygen activating site simultaneously. Kinetic measurements by NAKAMURA et al.1 on the 4-hydroxybe...
متن کاملHbaR, a 4-hydroxybenzoate sensor and FNR-CRP superfamily member, regulates anaerobic 4-hydroxybenzoate degradation by Rhodopseudomonas palustris.
Under anaerobic conditions, structurally diverse aromatic compounds are catabolized by bacteria to form benzoyl-coenzyme A (benzoyl-CoA), the starting compound for a central reductive pathway for aromatic ring degradation. The structural genes required for the conversion of 4-hydroxybenzoate (4-HBA) to benzoyl-CoA by Rhodopseudomonas palustris have been identified. Here we describe a regulatory...
متن کامل2-[(E)-2-(4-Chlorophenyl)ethenyl]-1-methylpyridinium iodide monohydrate1
In the title compound, C(14)H(13)ClN(+)·I(-)·H(2)O, the cation is nearly planar and exists in an E configuration; the dihedral angle between the pyridinium and benzene rings is 0.98 (17)°. The cations stack in an anti-parallel manner along the a axis through two π-π inter-actions between the pyridinium and benzene rings [centroid-centroid distances 3.569 (2) and 3.6818 (13) Å, respectively]. Th...
متن کامل2-Amino-4-methylpyridinium 2-hydroxy-3,5-dinitrobenzoate
In the anion of the title mol-ecular salt, C(6)H(9)N(2) (+)·C(7)H(3)N(2)O(7) (-), the two nitro groups are twisted from the attached benzene ring with dihedral angles of 27.36 (10) and 4.86 (11)°. The anion is stabilized by an intra-molecular O-H⋯O hydrogen bond, which generates an S(6) ring motif. In the crystal, the cations and anions are linked by N-H⋯O and C-H⋯O inter-actions and are furthe...
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ژورنال
عنوان ژورنال: Acta Crystallographica Section E Structure Reports Online
سال: 2013
ISSN: 1600-5368
DOI: 10.1107/s1600536813001785