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(2E)-3-(3-Nitro-phen-yl)-1-[4-(piperidin-1-yl)phen-yl]prop-2-en-1-one.

ABSTRACT: In the title compound, C(20)H(20)N(2)O(3), the piperidine ring adopts a chair conformation and its mean plane forms dihedral angles of 19.63 (9) and 19.44 (9)°, respectively, with the benzene and the nitro-substituted benzene ring. The benzene and nitro-substituted benzene rings are almost coplanar and make a dihedral angle of 4.78 (8)°. In the crystal, mol-ecules are linked by C-H⋯O hydrogen bonds into two-dimensional networks parallel to the ab plane. The crystal packing is further stabilized by π-π inter-actions [maximum centroid-centroid distance = 3.7807 (12) Å].

SUBMITTER: Fun HK

PROVIDER: S-EPMC3343948 | biostudies-literature |

REPOSITORIES: biostudies-literature

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(2E)-1-(4-Chloro-phen-yl)-3-(4-nitro-phen-yl)prop-2-en-1-one.

Project description:In the title compound, C15H10ClNO3, a substituted chalcone, the dihedral angle between the benzene rings is 5.1?(7)°. The nitro group makes a dihedral angle of 12.5?(3)° with the benzene ring to which it is attached. In the crystal, weak C-H?O inter-actions link the mol-ecules into a one-dimensional array along [010]. The crystal studied was an inversion twin, with a refined ratio for the twin components of 0.6060?(9):0.3939?(1).

| S-EPMC3648313 | biostudies-literature

(2E)-1-(2,5-Dimeth-oxy-phen-yl)-3-(3-nitro-phen-yl)prop-2-en-1-one.

Project description:In the title compound, C(17)H(15)NO(5), an intra-molecular C-H?O hydrogen bond generates an S(6) ring motif. The benzene rings form a dihedral angle of 6.45?(7)° with each other. In the crystal, inversion dimers linked by pairs of C-H?O hydrogen bonds generate R(2) (2)(8) loops. Adjacent dimers are further connected by C-H?O hydrogen bonds into an infinite chain along the [011] direction.

| S-EPMC3247450 | biostudies-literature

(2E)-1-(2,5-Dimethyl-thio-phen-3-yl)-3-(3-nitro-phen-yl)prop-2-en-1-one.

Project description:In the title compound, C(15)H(13)NO(3)S, the benzene ring and the five-membered heterocyclic ring are oriented at a dihedral angle of 12.00 (6)°. In the crystal, C-H⋯O inter-actions generate two types of cyclic motifs, R(2) (2)(14) and R(2) (2)(26), connecting the mol-ecules into tapes extending along [101]. In addition, there are π-π stacking inter-actions between the benzene and thio-phene rings with centroid-centroid distances of 3.7263 (14) and 3.7487 (14) Å.

| S-EPMC3238980 | biostudies-literature

(2E)-1-(2,4-Dichloro-phen-yl)-3-[3-(4-nitro-phen-yl)-1-phenyl-1H-pyrazol-4-yl]prop-2-en-1-one.

Project description:In the title compound, C(24)H(15)Cl(2)N(3)O(3), the C=C double bond is E configured. The 1-phenyl-1H-pyrazole moiety is roughly planar (r.m.s. deviation of all fitted non-H atoms = 0.0780?Å), but the mean planes of the two components are inclined at an angle of 9.95?(7)°. The mean plane defined by the non-H atoms of the 1H-pyrazole ring encloses angles of 9.95?(7), 24.54?(6) and 43.02?(6)° with the mean planes of the different benzene rings. In the crystal, C-H?O contacts are present and result in the formation of a double-layer two-dimensional network lying parallel to (110). The shortest inter-centroid distance between two aromatic systems is 3.5455?(7)?Å and is apparent between two pyrazole systems. Further ?-? inter-actions are manifest between a pair of 4-nitro-phenyl rings [centroid-to-centroid distance = 3.6443?(7)?Å] and a pair of 2,4-dichloro-phenyl rings [centroid-to-centroid distance = 3.7797?(7)?Å].

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(2E)-3-(4-Methyl-phen-yl)-1-(3-nitro-phen-yl)prop-2-en-1-one.

Project description:The title compound, C(16)H(13)NO(3), crystallizes with two independent mol-ecules (A and B) in the asymmetric unit. The dihedral angle between the mean planes of the 4-methyl-phenyl and 3-nitro-phenyl groups is 4.0?(3)° in mol-ecule A and 16.2?(7)° in mol-ecule B. Inter-molecular C-H?O hydrogen bonding involving the O atoms of the 3-nitro-phenyl group of both independent mol-ecules link the mol-ecules into layers approximately parallel to the (110) plane. The layers are held together by ?-? stacking inter-actions between the 4-methyl-phenyl ring of mol-ecule A and the 3-nitro-phenyl ring of mol-ecule B of the adjacent layer, with the distance between the centroids of inter-acting rings being 3.6987?(7)?Å.

| S-EPMC2914892 | biostudies-other

(2E)-1-(4-Amino-phen-yl)-3-(2,4-dichloro-phen-yl)prop-2-en-1-one.

Project description:The title compound, C(15)H(11)Cl(2)NO, is approximately planar (r.m.s. deviation = 0.062?Å) and contains a single C=C double bond in a trans (E) configuration. The crystal packing is stabilized by intermolecular N-H?N and N-H?O inter-molecular hydrogen bonding.

| S-EPMC3152147 | biostudies-literature

(2E)-1-(4-Methyl-phen-yl)-3-(2,3,5-trichloro-phen-yl)prop-2-en-1-one.

Project description:In the title mol-ecule, C(16)H(11)Cl(3)O, the dihedral angle between the two benzene rings is 33.2?(1)°. The crystal packing is stabilized by C-H?O hydrogen bonds.

| S-EPMC2915018 | biostudies-literature

(2E)-1-(3-Chloro-phen-yl)-3-(4-chloro-phen-yl)prop-2-en-1-one.

Project description:The title compound, C(15)H(10)Cl(2)O, is a chalcone with 3-chloro-phenyl and 4-chloro-phenyl substituents bonded at the opposite ends of a propenone group, the biologically active region. The dihedral angle between mean planes of these two chloro-substituted benzene rings is 46.7?(7)° compared to 46.0?(1) and 32.4?(1)° in similar published sructures. The angles between the mean plane of the prop-2-en-1-one group and the mean planes of the 3-chloro-phenyl and 4-chloro-phenyl rings are 24.1?(2) and 29.63°, respectively. While no classical hydrogen bonds are present, weak inter-molecular C-H??-ring inter-actions are observed, which contribute to the stability of crystal packing.

| S-EPMC2971255 | biostudies-literature

(2E)-3-(4-Bromo-phen-yl)-1-(3-chloro-phen-yl)prop-2-en-1-one.

Project description:In the title compound, C(15)H(10)BrClO, the dihedral angle between mean planes of the bromo- and chloro-substituted benzene rings is 46.2?(2)° compared to 45.20?(9)° in the structure with the Cl substituent in the meta position of the aromatic ring. The dihedral angles between the mean plane of the prop-2-ene-1-one group and the mean planes of the 4-bromo-phenyl and 3-chloro-phenyl rings are 28.7?(5) and 24.2?(4)°, respectively. In the crystal, weak inter-molecular C-H?? inter-actions occur.

| S-EPMC2980037 | biostudies-literature

(2E)-1-(2-Bromo-phen-yl)-3-(4-chloro-phen-yl)prop-2-en-1-one.

Project description:In the title compound, C(15)H(10)BrClO, the dihedral angle between the mean planes of the benzene rings in the ortho-bromo- and para-chloro-substituted rings is 70.5?(6)°. The dihedral angles between the mean plane of the prop-2-en-1-one group and the mean planes of the benzene rings in the 4-chloro-phenyl and 2-bromo-phenyl rings are 14.9?(3) and 63.3?(8)°, respectively. In the crystal, inversion dimers linked by pairs of weak C-H?O interactions are observed as well as aromatic ?-? stacking inter-actions.

| S-EPMC3007051 | biostudies-literature

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