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2-Methyl-N-[1-(1H-pyrrol-2-yl)ethyl-idene]aniline.

ABSTRACT: There are two independent mol-ecules in the asymmetric unit of the title compound, C13H14N2, in which the dihedral angles formed by the pyrrole and benzene rings are 83.63 (8) and 87.84 (8)°. In the crystal, mol-ecules are linked via pairs of N-H⋯N hydrogen bonds, forming inversion dimers, which are further connected by C-H⋯π inter-actions.

SUBMITTER: Su BY

PROVIDER: S-EPMC3588931 | biostudies-literature | 2012 Dec

REPOSITORIES: biostudies-literature

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2-Methyl-N-[1-(1H-pyrrol-2-yl)ethyl-idene]aniline.

Su Bi-Yun BY Qin Wen-Long WL Jiao Long L Wang Jia-Xiang JX

Acta crystallographica. Section E, Structure reports online 20121110 Pt 12

There are two independent mol-ecules in the asymmetric unit of the title compound, C13H14N2, in which the dihedral angles formed by the pyrrole and benzene rings are 83.63 (8) and 87.84 (8)°. In the crystal, mol-ecules are linked via pairs of N-H⋯N hydrogen bonds, forming inversion dimers, which are further connected by C-H⋯π inter-actions. ...[more]

PMID: 23476167

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N-[1-(1H-Pyrrol-2-yl)ethyl-idene]aniline.

Project description:There are two independent mol-ecules in the asymmetric unit of the title compound, C(12)H(12)N(2), in which the pyrrole and benzene rings form dihedral angles of 72.37 (7) and 82.34 (8)°. The imino N-C bond lengths in the two mol-ecules are equal [1.286 (2) Å] and indicate C=N character. In the crystal, each mol-ecule forms a dimer with an inversion-related mol-ecule through a pair of classical N-H⋯N hydrogen bonds.

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2,4,6-Trimethyl-N-[1-(1H-pyrrol-2-yl)ethyl-idene]aniline.

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2,5-Dimethyl-N-[1-(1H-pyrrol-2-yl)ethyl-idene]aniline.

Project description:In the title compound, C(14)H(16)N(2), the pyrrole and benzene rings form a dihedral angle of 72.37 (8)°. In the crystal, centrosymmetrically related mol-ecules are assembled into dimers by by pairs of N-H⋯N hydrogen bonds, generating rings of R(2) (2)(10) graph-set motif. C-H⋯π inter-actions also occur.

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2,3-Dimethyl-N-[(E)-(1H-pyrrol-2-yl)methyl-idene]aniline.

Project description:In the title compound, C(13)H(14)N(2), the dihedral angle between the aromatic rings is 69.73 (14)°. In the crystal, inversion dimers linked by pairs of N-H⋯N hydrogen bonds generate R(2) (2)(10) loops. A weak C-H⋯π inter-action also occurs.

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(E)-2,4,6-Trimethyl-N-[(1H-pyrrol-2-yl)methyl-idene]aniline.

Project description:The title compound, C14H16N2, is a pyrrole-2-carbaldimine ligand that shows an E conformation at the imine double bond. The dihedral angle between the rings is 78.3 (1)°. In the crystal, pairs of mol-ecules form centrosymmetric dimers [graph-set descriptor is presumably R(2)2(10)] via N-H⋯N hydrogen bonds between the pyrrole N-H group and the imine N atom of a neighbouring mol-ecule.

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N'-[(E)-(1-Methyl-1H-pyrrol-2-yl)methyl-idene]benzohydrazide.

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Project description:In the title compound, C(9)H(7)N(3), the N-bound methyl group and vinyl H atom are syn. The 12 non-H atoms comprising the mol-ecule are essentially coplanar (r.m.s. deviation = 0.071?Å). Supra-molecular tapes feature in the crystal packing, orientated perpendicular to [10-1], and are formed by C-H?N inter-actions involving each cyano N atom. The tapes are connected into layers via ?-? inter-actions occurring between translationally related pyrrole rings [ring centroid-centroid distance = 3.8754?(10)?Å]; the layers stack along the b axis.

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Structure and spectroscopic properties of N,S-coordinating 2-methyl-sulfanyl-N-[(1H-pyrrol-2-yl)methyl-idene]aniline methanol monosolvate.

Project description:The reaction of pyrrole-2-carboxaldehyde and 2-(methyl-sulfan-yl)aniline in refluxing methanol gave an olive-green residue in which yellow crystals of the title compound, C12H12N2S·CH3OH, were grown from slow evaporation of methanol at 263 K. In the crystal, hydrogen-bonding inter-actions link the aniline mol-ecule and a nearby methanol solvent mol-ecule. These units are linked by a pair of weak C-H⋯Omethanol interactions, forming inversion dimers consisting of two main molecules and two solvent molecules.

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N-[(Z)-(1-Methyl-1H-pyrrol-2-yl)methyl-idene]-1H-1,2,4-triazol-5-amine.

Project description:In the title compound, C(8)H(9)N(5), a Schiff base derived from N-methyl-pyrrole-2-carbaldehyde and 3-amino-1,2,4-triazole, the C=N double bond linking the two aromatic rings has a Z conformation. The two rings are twisted by 24.20 (5)°. A chain motif results from N-H⋯N hydrogen bonding.

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N'-[(E)-(1-Methyl-1H-pyrrol-2-yl)methyl-idene]pyridine-4-carbohydrazide.

Project description:In the title compound, C(12)H(12)N(4)O, the pyridine and pyrrole rings are inclined at an angle of 29.22 (8)° and an intra-molecular C-H⋯N inter-action geneates an S(6) ring. In the crystal, mol-ecules are linked by N-H⋯N hydrogen bonds, forming (010) C(7) chains. The chains are cross-linked by weak C-H⋯O inter-actions, which generate R(2) (2)(18) ring motifs within an infinite sheet. Finally, two C-H⋯π inter-actions are present, where the C-H groups are from the pyridine ring and π is the pyrrole ring.

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