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(E)-1-{4-[Bis(4-bromo-phen-yl)meth-yl]piperazin-1-yl}-3-(4-eth-oxy-phen-yl)prop-2-en-1-one.

ABSTRACT: In the title compound, C(28)H(28)Br(2)N(2)O(2), the C=C double bond has an E configuration and the piperazine ring has a chair conformation, with the N-C bonds in equatorial orientations. The dihedral angle between the bromo-benzene rings is 83.1?(4)°. In the crystal, mol-ecules are linked by C-H?O and C-H?Br hydrogen bonds.

SUBMITTER: Zhong Y

PROVIDER: S-EPMC3297327 | biostudies-other | 2012 Mar

REPOSITORIES: biostudies-other

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(E)-1-{4-[Bis(4-bromo-phen-yl)meth-yl]piperazin-1-yl}-3-(4-eth-oxy-phen-yl)prop-2-en-1-one.

Zhong Yan Y Zhang Xiaoping X Wu Bin B

Acta crystallographica. Section E, Structure reports online 20120204 Pt 3

In the title compound, C(28)H(28)Br(2)N(2)O(2), the C=C double bond has an E configuration and the piperazine ring has a chair conformation, with the N-C bonds in equatorial orientations. The dihedral angle between the bromo-benzene rings is 83.1 (4)°. In the crystal, mol-ecules are linked by C-H⋯O and C-H⋯Br hydrogen bonds. ...[more]

PMID: 22412517

Similar Datasets

(E)-1-{4-[Bis(4-bromo-phen-yl)meth-yl]piperazin-1-yl}-3-(4-eth-oxy-3-meth-oxy-phen-yl)prop-2-en-1-one.

Project description:In the title mol-ecule, C(29)H(30)Br(2)N(2)O(3), the piperazine ring has a chair conformation and the C=C double bond has an E conformation. The dihedral angle between the bromo-benzene rings is 79.1?(3)°. In the crystal, mol-ecules are linked through C-H?O and C-H?Br hydrogen bonds.

| S-EPMC3254469 | biostudies-literature

(E)-1-{4-[Bis(4-fluoro-phen-yl)meth-yl]piperazin-1-yl}-3-(4-eth-oxy-phen-yl)prop-2-en-1-one.

Project description:In the title mol-ecule, C(28)H(28)F(2)N(2)O(2), the ethene bond exhibits an E conformation and the piperazine ring adopts a chair conformation. The amide-N atom of the piperazine ring is almost planar (bond-angle sum = 358.8°) whereas the other N atom is clearly pyramidal (bond-angle sum = 330.5°). The dihedral angle between the fluoro-benzene rings is 76.36 (17)°. In the crystal, inversion dimers linked by pairs of C-H⋯O hydrogen bonds generate R(2) (2)(22) loops.

| S-EPMC3238988 | biostudies-literature

(E)-3-(2-Eth-oxy-phen-yl)-1-{4-[(2-fluoro-phen-yl)(4-fluoro-phen-yl)meth-yl]piperazin-1-yl}prop-2-en-1-one.

Project description:In the title compound, C(28)H(28)F(2)N(2)O(2), the piperazine ring has a chair conformation with the pendant N-C bonds in equatorial orientations. The C=C double bond has an E conformation and the dihedral angle between the fluoro-benzene rings is 70.8?(3)°. In the crystal, mol-ecules are linked by C-H?O and C-H?F hydrogen bonds.

| S-EPMC3379522 | biostudies-literature

(E)-1-{4-[Bis(4-bromo-phen-yl)meth-yl]piperazin-1-yl}-3-(4-bromo-phen-yl)prop-2-en-1-one.

Project description:In the title mol-ecule, C(26)H(23)Br(3)N(2)O, the piperazine ring adopts a chair conformation and the C=C double bond has an E configuration. In the crystal, mol-ecules are linked through weak inter-molecular C-H?O hydrogen bonds.

| S-EPMC3239003 | biostudies-literature

(2E)-3-{4-[(1H-1,3-Benzimidazol-2-yl)meth-oxy]-3-eth-oxy-phen-yl}-1-(4-bromo-phen-yl)prop-2-en-1-one monohydrate.

Project description:In the title compound, C(25)H(21)BrN(2)O(3)·H(2)O, the benzimidazole fragment and the water mol-ecule of crystallization are each disordered over two sets of sites of equal occupancy. The dihedral angles between the least-squares planes of the benzimidazole and the 3-eth-oxy- and 4-bromo-benzene rings are 86.9 (6) and 85.1 (1)°, respectively in one disorder component. The crystal packing is stabilized by inter-molecular O-H⋯O, O-H⋯N and N-H⋯N hydrogen bonds, which link the mol-ecules into chains along the a axis.

| S-EPMC3099940 | biostudies-literature

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

Project description:In the title compound, C(16)H(13)BrO(2), the dihedral angle between the mean planes of the meth-oxy- and bromo-substituted benzene rings is 24.6?(1)°. The angles between the mean plane of the prop-2-en-1-one group and the 4-bromo-phenyl and 2-meth-oxy-phenyl ring planes are 18.8?(1) and 6.0?(1)°, respectively.

| S-EPMC3007412 | biostudies-literature

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

Project description:In the title compound, C(16)H(13)BrO(2), two benzene rings form a dihedral angle of 44.3?(9)°. In the crystal, weak inter-molecular C-H?O hydrogen bonds link the mol-ecules into chains propagating in [010]. The crystal packing also exhibits short Br?Br contacts of 3.4787?(8)?Å. A comparison of the DFT-optimized gas-phase mol-ecular geometry with that in the crystal structure revealed only small differences.

| S-EPMC3006708 | biostudies-literature

(E)-1-{4-[Bis(4-meth-oxy-phen-yl)meth-yl]piperazin-1-yl}-3-(4-methyl-phen-yl)prop-2-en-1-one.

Project description:In the title mol-ecule, C(29)H(32)N(2)O(3), the piperazine ring has a chair conformation. The amide N atom is almost planar (bond angle sum = 359.5°), whereas the other N atom is clearly pyramidal (bond angle sum = 330.4°). The dihedral angle between the meth-oxy-benzene rings is 81.29?(16)°. In the crystal, mol-ecules are linked by C-H?O hydrogen bonds.

| S-EPMC3201336 | biostudies-literature

(E)-1-{4-[Bis(4-meth-oxy-phen-yl)meth-yl]piperazin-1-yl}-3-(4-fluoro-phen-yl)prop-2-en-1-one.

Project description:In the title compound, C(28)H(29)FN(2)O(3), the conformation about the ethene bond is E. The piperazine ring adopts a chair conformation. In the crystal, mol-ecules are linked by inter-molecular C-H⋯O hydrogen bonds.

| S-EPMC3051918 | biostudies-literature

Crystal structures of (2E)-1-(3-bromo-thio-phen-2-yl)-3-(2-meth-oxy-phen-yl)prop-2-en-1-one and (2E)-1-(3-bromo-thio-phen-2-yl)-3-(3,4-di-meth-oxy-phen-yl)prop-2-en-1-one.

Project description:In the mol-ecules of the title compounds, (2E)-1-(3-bromo-thio-phen-2-yl)-3-(2-meth-oxy-phen-yl)prop-2-en-1-one, C14H11BrO2S, (I), which crystallizes in the space group P-1 with four independent mol-ecules in the asymmetric unit (Z' = 8), and (2E)-1-(3-bromo-thio-phen-2-yl)-3-(3,4-di-meth-oxy-phen-yl)prop-2-en-1-one, C15H13BrO3S, (II), which crystallizes with Z' = 8 in the space group I2/a, the non-H atoms are nearly coplanar. The mol-ecules of (I) pack with inversion symmetry stacked diagonally along the a-axis direction. Weak C-H?Br intra-molecular inter-actions in each of the four mol-ecules in the asymmetric unit are observed. In (II), weak C-H?O, bifurcated three-center inter-molecular inter-actions forming dimers along with weak C-H?? and ?-? stacking inter-actions are observed, linking the mol-ecules into sheets along [001]. A weak C-H?Br intra-molecular inter-action is also present. There are no classical hydrogen bonds present in either structure.

| S-EPMC4571368 | biostudies-literature

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