Tetraethylammonium 4-hydroxybenzoate monohydrate
نویسندگان
چکیده
منابع مشابه
Supramolecular hydrogen-bonding networks in the 1-(diaminomethylenene)thiouron-1-ium 4-hydroxybenzoate, 3,4-dihydroxybenzoate and 3,4,5-trihydroxybenzoate monohydrate crystals
0022-2860/$ see front matter 2013 Elsevier B.V. A http://dx.doi.org/10.1016/j.molstruc.2013.03.015 ⇑ Corresponding author. Tel.: +48 71 343 5021; fax E-mail address: [email protected] (J. Jancz Three crystals of 1-(diaminomethylene)thiouron-1-ium 4-hydroxybenzoate (1), 1-(diaminomethylene)thiouron-1-ium 3,4-dihydroxybenzoate (2) and 1-(diaminomethylene)thiouron-1-ium 3,4,5-trihydroxyben...
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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...
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In the title compound, C(14)H(8)Br(2)O(3)·H(2)O, the organic and water mol-ecules both have crystallographically imposed C(s) symmetry. The dihedral angle between the aromatic rings is 45.76 (11)°. In the crystal structure, inter-molecular C-H⋯O and O-H⋯O hydrogen bonds link the mol-ecules into chains parallel to the a axis. No π-π stacking inter-actions are observed in the crystal structure.
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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...
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The asymmetric unit of the title compound, C(5)H(7)N(2) (+)·C(6)H(6)NO(3)S(-)·C(6)H(7)NO(3)S·H(2)O, contains one 4-ammonio-benzene-sulfonate zwitterion ((+)H(3)NC(6)H(4)SO(3) (-)), one 4-amino-benzene-sulfonate anion (H(2)NC(6)H(4)SO(3) (-)), one 4-amino-pyridinium cation and two half-mol-ecules of water, each lying on a twofold rotation axis. The various ions and molecules in the structure are...
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ژورنال
عنوان ژورنال: Acta Crystallographica Section E Structure Reports Online
سال: 2011
ISSN: 1600-5368
DOI: 10.1107/s1600536811024044