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N-(4-Chloro-phen-yl)-4-methyl-pyridin-2-amine.

ABSTRACT: In the title compound, C(12)H(11)ClN(2), the dihedral angle between the benzene and pyridyl rings is 48.03?(8)°. Twists are also evident in the mol-ecule, in particular about the N(a)-C(b) (a = amine and b = benzene) bond [C-N-C-C = -144.79?(18)°]. In the crystal, inversion dimers linked by pairs of N-H?N hydrogen bonds result in the formation of eight-membered {?NCNH}(2) synthons [or R(2) (2)(8) loops].

SUBMITTER: Fairuz ZA

PROVIDER: S-EPMC3007248 | biostudies-other | 2010

REPOSITORIES: biostudies-other

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N-(4-Chloro-phen-yl)-4-methyl-pyridin-2-amine.

Fairuz Zainal A ZA Aiyub Zaharah Z Abdullah Zanariah Z Ng Seik Weng SW Tiekink Edward R T ER

Acta crystallographica. Section E, Structure reports online 20100731 Pt 8

In the title compound, C(12)H(11)ClN(2), the dihedral angle between the benzene and pyridyl rings is 48.03 (8)°. Twists are also evident in the mol-ecule, in particular about the N(a)-C(b) (a = amine and b = benzene) bond [C-N-C-C = -144.79 (18)°]. In the crystal, inversion dimers linked by pairs of N-H⋯N hydrogen bonds result in the formation of eight-membered {⋯NCNH}(2) synthons [or R(2) (2)(8) loops]. ...[more]

PMID: 21588463

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4-Methyl-N-(3-methyl-phen-yl)pyridin-2-amine.

Project description:The title amine, C(13)H(14)N(2), is twisted with a dihedral angle between the rings of 60.07?(9)°. The amine N-H group and pyridine N atom are syn allowing for the formation of centrosymmetric eight-membered {?HNCN}(2) synthons via N-H?N hydrogen bonds. The two-mol-ecule aggregates are sustained in the three-dimensional crystal packing via C-H?? and ?-? inter-actions [centroid-centroid distance for pyridyl rings = 3.7535?(12)?Å].

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N-(3-Chloro-phen-yl)-3-nitro-pyridin-2-amine.

Project description:The dihedral angle between the benzene and pyridyl rings in the title compound, C(11)H(8)ClN(3)O(2), is 22.65?(10)°, indicating a twisted mol-ecule. The amine H and nitro O atoms form a donor-acceptor pair for an intra-molecular N-H?O hydrogen bond so that the nitro group is almost coplanar with the pyridine ring to which it is connected [O-N-C-C torsion angle = 7.4?(3)°]. The pyridine N and Cl atoms are approximately syn. The crystal packing features C-H?Cl inter-actions that lead to undulating supra-molecular chains along [101]. These are connected into sheets by ?-? inter-actions occurring between the benzene rings and between the pyridine rings of translationally related mol-ecules along the b axis [centroid-centroid distances = length of b axis = 3.7157?(2)?Å].

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N-(4-Methyl-phen-yl)-3-nitro-pyridin-2-amine.

Project description:Two independent mol-ecules comprise the asymmetric unit of the title compound, C(12)H(11)N(3)O(2). These differ in terms of the relative orientations of the benzene rings as seen in the respective dihedral angles formed between the pyridine and benzene rings [17.42 (16) and 34.64 (16)°]. Both mol-ecules are twisted about the amine-tolyl N-C bonds [respective torsion angles = 22.3 (5) and 35.9 (5)°] but only about the amine-pyridine N-C bond in the first independent mol-ecule [respective torsion angles = -11.7 (5) and 0.8 (5)°]. Intra-molecular N-H⋯O hydrogen bonds preclude the amine H atoms from forming significant inter-molecular inter-actions. The crystal packing features inter-molecular C-H⋯O and C-H⋯π and π-π [centroid-centroid distance: pyridine-benzene = 3.6442 (19) Å and pyridine-pyridine = 3.722 (2) Å] contacts.

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Project description:The Sm(III) ion in the title compound, [SmCl(3)(C(12)H(10)N(2)O)(3)], shows a coordination number of nine with a slightly distorted tricapped trigonal prismatic geometry based on a Cl(3)N(6) donor set. The mol-ecular structure is stabilized by three intra-molecular O-H?Cl hydrogen bonds.

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Project description:The five-membered ring of the title compound, C(11)H(9)ClF(3)N(3), is almost planar (r.m.s. deviation = 0.002 Å) and the phenyl-ene ring is aligned at 44.8 (1)°. The N atom of the amino substituent shows a pyramidal geometry and is a hydrogen-bond donor to a Cl atom and to a ring N atom, which together generate a layer motif.

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Project description:In the title compound, C14H11Cl2N5O, the plane of the 1H-imidazo[4,5-c]pyridine ring system [r.m.s. deviation = 0.087 (19) Å] makes a dihedral angle of 4.87 (10)° with the terminal phenyl ring. An intra-molecular N-H⋯N hydrogen bond stabilizes the mol-ecular conformation. In the crystal, N-H⋯O hydrogen bonds link the mol-ecules into inversion dimers. These dimers are connected by π-π inter-actions between imidazole rings [shortest centroid-centroid distance = 3.4443 (14) Å].

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(E)-2-(4-Chloro-phen-oxy)-N'-(pyridin-4-yl-methyl-idene)acetohydrazide.

Project description:In the title compound, C14H12ClN3O2, the acyl-hydrazone base [C(=O)-N-N=C] is essentially planar, with an r.m.s. deviation of 0.0095?Å, and makes a dihedral angle of 12.52?(10)°with the pyridine ring. In the crystal, molecules are linked via pairs of N-H?O hydrogen bonds, forming inversion dimers with an R2(2)(8) graph-set motif. The dimers are linked via C-H?? interactions forming chains along [101].

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