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(2S*)-2-Ammonio-3-(1H-indol-3-yl)propionate pyridine-2,4-dicarboxylic acid ethanol solvate.

ABSTRACT: In the title compound, C(11)H(12)N(2)O(2)·C(7)H(5)NO(4)·C(2)H(6)O, the (2S*)-2-amino-3-(1H-indol-3-yl)propionic acid is present in the zwitterionic form. In the crystal structure, 2-amino-3-(1H-indol-3-yl)propionic acid mol-ecules and pyridine-2,4-dicarb-oxylic acid mol-ecules are linked through strong inter-molecular O-H⋯O and N-H⋯O hydrogen bonds, forming layers parallel to (100). The layers are linked through the ethanol mol-ecules via somewhat weaker inter-molecular O-H⋯O and N-H⋯O hydrogen bonds, forming thus a three-dimensional network. Weak C-H⋯O and N-H⋯N hydrogen bonding and π-π inter-actions between the aromatic rings are also present.

SUBMITTER: Di K

PROVIDER: S-EPMC2979096 | biostudies-literature |

REPOSITORIES: biostudies-literature

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2-Hydr-oxy-(2-methyl-1H-indol-3-ylmethyl-idene)benzohydrazide ethanol solvate.

Project description:In the title compound, C(17)H(15)N(3)O(2)·C(2)H(6)O, Schiff base molecules are linked by a hydr-oxy-amido hydrogen bond into a helical chain running along the b axis. This chain is consolidated by two other hydrogen bonds; the ethanol solvent mol-ecule is a hydrogen-bond donor to the amide group and a hydrogen-bond acceptor for the indolyl NH group of an adjacent Schiff base mol-ecule.

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Pyridine 2,4-Dicarboxylic Acid Suppresses Tomato Seedling Growth.

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2,4-Diamino-6-methyl-1,3,5-triazine ethanol solvate.

Project description:The crystal structure of the title compound, C(4)H(7)N(5)·C(2)H(6)O, is determined by extensive hydrogen bonding. A sequence of dimeric associations, formed by N-H(amino)⋯N(ring), connects the triazine rings into a mol-ecular tape. Mol-ecules are linked into a supra-molecular structure by N-H⋯O and O-H⋯O hydrogen bonds. The asymmetric unit consists of two formula units.

| S-EPMC2960281 | biostudies-literature

(2,4-Dimethoxy-benzyl-idene)-2-hydroxy-benzohydrazide ethanol solvate.

Project description:In the planar title mol-ecule, C(16)H(16)N(2)O(4)·C(2)H(6)O, the planar Schiff base molecule is linked to the ethanol solvent mol-ecule by a hydr-oxy-amide hydrogen bond. The hydr-oxy group of the ethanol mol-ecule is a hydrogen-bond donor to the double-bonded N atom of an adjacent Sciff base, pairs of interactions taking place across a center of symmetry and giving rise to a hydrogen-bonded dimer.

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Project description:In the title compound, C(29)H(18)ClN(5)·C(2)H(6)O, the dihydro-pyridine ring adopts a strongly flattened envelope conformation, with a maximum deviation of 0.139?(2)?Å from its best plane for the Csp(3) atom. The dihedral angles between the dihydro-pyridine ring plane and the two indole rings in positions 2 and 6 are 34.28?(5) and 40.50?(6)°, respectively. In turn, the benzene ring and the dihydro-pyridine ring are oriented at a dihedral angle of 74.69?(6)°. An intra-molecular C-H?Cl hydrogen bond occurs. In the crystal, mol-ecules are linked by N-H?N, N-H?O and O-H?N hydrogen bonds into layers parallel to (001). There are short C-H?Cl contacts between mol-ecules in neighboring layers.

| S-EPMC3344446 | biostudies-literature

N'-(2,4-Dimethoxy-benzyl-idene)-3,4,5-trihydroxy-benzohydrazide ethanol solvate.

Project description:The title compound, C(16)H(16)N(2)O(6)·C(2)H(5)OH, was synthesized from 3,4,5-trihydroxy-benzoyl-hydrazide and 2,4-dimethoxy-benzaldehyde in ethanol. The compound is not planar, with the two aromatic planes of the two aromatic rings twisted by 15.6?(1)°. The hydr-oxy groups are involved in both intra-molecular O-H?O and inter-molecular O-H?N and O-H?O hydrogen bonds and a C-H?O interaction also occurs.

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6-(1H-Indol-3-yl)-4-phenyl-2,2'-bi-pyridine-5-carbonitrile.

Project description:In the mol-ecule of the title compound, C(25)H(16)N(4), the pyridine rings are oriented at a dihedral angle of 0.92?(3)°, while the dihedral angle between the benzene ring and the adjacent pyridine ring is 56.51?(3)°. In the crystal structure, inter-molecular N-H?N hydrogen bonds link the mol-ecules into centrosymmetric dimers, forming R(2) (2)(16) ring motifs. ?-? contacts between the pyridine ring and the indole ring system and between the pyridine rings [centroid-centroid distances = 3.923?(2) and 3.724?(2)?Å] may further stabilize the structure. Two weak C-H?? inter-actions are also present.

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Methyl 3-[(1-butyl-1H-indol-3-yl)carbonyl-amino]propionate.

Project description:In the title mol-ecule, C(17)H(22)N(2)O(3), the mean plane of the terminal (C=O)OMe fragment and the indole plane form a dihedral angle of 78.94?(3)°. Inter-molecular N-H?O hydrogen bonds link the mol-ecules into chains extended along the c axis. The crystal packing exhibits ?-? inter-actions, indicated by the short distance of 3.472?(2)?Å between the centroids of the five-membered heterocycles of neighbouring mol-ecules.

| S-EPMC2969888 | biostudies-other

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