2-[(E)-(5-tert-Butyl-2-hydroxyphenyl)diazenyl]benzoic acid
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چکیده
The title compound, C(17)H(18)N(2)O(3), is approximately planar, owing in part to an intra-molecular bifurcated O-H⋯(N,O) hydrogen bond; the dihedral angle between the two aromatic rings is 23.86 (9)°. In the crystal struture, centrosymmetrically related mol-ecules associate into dimers via the eight-membered carboxyl-ate {⋯H-O-C=O}(2) synthon.
منابع مشابه
4-[(E)-(5-tert-Butyl-2-hydroxyphenyl)diazenyl]benzoic acid benzene hemisolvate
The title benzene hemisolvate, C(17)H(18)N(2)O(3)·0.5C(6)H(6), features an essentially planar (the r.m.s. deviation of the non-H atoms, excluding methyl-C, is 0.071 Å) diazo mol-ecule with an E conformation about the N=N bond, and a half-mol-ecule of benzene disposed about a centre of inversion. The dihedral angle formed between the benzene rings of the diazo mol-ecule is 7.69 (12)°. In the cry...
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The reaction of neodymium nitrate and 4-tert-butyl-benzoic acid (tBBAH) in aqueous solution yielded the dinuclear title complex, [Nd(2)(C(11)H(13)O(2))(6)(C(11)H(14)O(2))(2)(H(2)O)(2)], which has non-crystallographic C(i) symmetry. The two Nd(III) ions are linked by two bridging and two bridging-chelating tBBA ligands with an Nd⋯Nd separation of 4.0624 (5) Å. Moreover, each Nd(III) ion is coord...
متن کامل2-[(3,5-Di-tert-butyl-4-hydroxybenzyl)sulfanyl]benzoic acid
In the title compound, C(22)H(28)O(3)S, the dihedral angle between the two aromatic rings is 80.56 (6)°. The hy-droxy group is shielded by the two sterically hindered tert-butyl groups and therefore is not involved in any hydrogen bonding. The C-O-H fragment is coplanar with the aromatic ring, the dihedral angle between them being 7(5)°. In the crystal structure, pairs of mol-ecules are hydroge...
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The asymmetric unit of the title co-crystal, 2C(13)H(10)N(2)O(3)·C(14)H(14)N(4)O(2), comprises one mol-ecule of 2-(4-hydroxy-phenyl-diazen-yl)benzoic acid and half of an N,N'-bis-(4-pyridylmeth-yl)oxamide mol-ecule as the latter is disposed about an inversion centre. The most notable feature of the crystal structure is the formation of supra-molecular chains arising from hydr-oxy-pyridine O-H⋯N...
متن کاملMonitoring of BHT-quinone and BHT-CHO in the gas of capsules of Asclepias physocarpa.
Three volatile components, namely benzoic acid ethyl ester (1), 2,6-di-tert-butyl-p-benzoquinone (BHT-quinone) (2), and 3,5-di-tert-butyl-4-hydroxybenzaldehyde (BHT-CHO) (3), were detected from the gas in the capsules of Asclepias physocarpa by means of GC/MS analysis. BHT-quinone and BHT-CHO as organic pollutants are the degradation products of the antioxidant 2,6-di-tert-butyl-4-methylphenol ...
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