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Crystal structure of trans-1-{2-[4-(di-methyl-amino)-phen-yl]eth-yl}-4-[2-(pyren-1-yl)eth-yl]cyclo-hexa-ne.

ABSTRACT: The title compound, C34H37N, is a pyrene derivative in which the pyrene ring system is linked to an ethyl-cyclo-hexane unit which, in turn, carries a [4-(di-methyl-amino)-phen-yl]ethyl substituent in the para position. The central cyclo-hexane ring has a chair conformation, with the exocyclic C-C bonds in equatorial orientations. The benzene ring is inclined to the mean plane of the pyrene ring system [maximum deviation = 0.038 (4) Å] by 14.84 (15)°. In the crystal, mol-ecules are linked by C-H⋯π inter-actions, forming chains propagating along [010]. The crystal was refined as a non-merohedral twin [domain ratio = 0.9989 (4):0.0011 (4)].

SUBMITTER: Thekku Veedu S

PROVIDER: S-EPMC4650969 | biostudies-literature |

REPOSITORIES: biostudies-literature

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Crystal structure of N-[(4-eth-oxy-phen-yl)carbamo-thio-yl]cyclo-hexa-ne-carboxamide.

Project description:The asymmetric unit of the title compound, C16H22N2O2S, contains two crystallographically independent mol-ecules (A and B). In mol-ecule A, the cyclo-hexane ring is disordered over two orientations [occupancy ratio 0.841?(10):0.159?(10)]. In each mol-ecule, the central carbonyl thio-urea unit is nearly planar (r.m.s. deviations for all non-H atoms of 0.034?Å in mol-ecule A and 0.094?Å in mol-ecule B). In both mol-ecules, the cyclo-hexane ring adopts a chair conformation. The mean plane of the cyclo-hexane ring makes dihedral angles of 35.8?(4) (mol-ecule A) and 20.7?(3)° (mol-ecule B) with that of the benzene ring. Each mol-ecule features an intra-molecular N-H?O hydrogen bond, which closes an S(6) ring motif. In the crystal, mol-ecules are linked via pairs of weak N-H?S inter-actions, forming inversion dimers with an R 2 (2)(8) ring motif for both mol-ecules. The crystal structure also features weak C-H?? ring inter-actions.

| S-EPMC4645074 | biostudies-literature

trans-2-(2-Nitro-1-phenyl-eth-yl)cyclo-hexa-none.

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Project description:In the title thio-cyanate-coordinated aza-macrocyclic copper(II) complex, [Cu(NCS)(2)(C(24)H(38)N(6))], the Cu(II) atom is coordinated by the four secondary N atoms of the aza-macrocyclic ligand and by the two N atoms of the thio-cyanate ions in a tetra-gonally distorted octa-hedral geometry. The average equatorial Cu-N bond length is shorter than the average axial Cu-N bond length [2.010 (2) and 2.528 (4) Å, respectively]. An N-H⋯N hydrogen-bonding inter-action between the secondary amine N atom and the adjacent thio-cyanate ion leads to a polymeric chain along the a axis.

| S-EPMC3007561 | biostudies-literature

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Project description:The asymmetric unit of the title compound, trans-di-aqua-(3,10-dimethyl-1,3,5,8,10,12-hexa-aza-cyclo-tetra-decane-κ4 N 1,N 5,N 8,N 12)copper(II) 4,4'-methyl-ene-bis(3-hy-droxy-naphthalene-2-carboxyl-ate), [Cu(C10H26N6)(H2O)2](C23H14O6) {[Cu(L)(H2O)2](pam), where L = 3,10-dimethyl-1,3,5,8,10,12-hexa-aza-cyclo-tetra-decane and pam = dianion of pamoic acid} consists of two independent halves of the [Cu(L)(H2O)2]2+ cation and one di-carboxyl-ate anion. The CuII atoms, lying on inversion centres, are coordinated by the four secondary N atoms of the macrocyclic ligands and the mutually trans O atoms of the water mol-ecules in a tetra-gonally elongated octa-hedral geometry. The average equatorial Cu-N bond length is significantly shorter than the average axial Cu-O bond length [2.007 (10) and 2.486 (18) Å, respectively]. The macrocyclic ligand in the complex cations adopts the most energetically stable trans-III conformation. The complex cations and anions are connected via hydrogen-bonding inter-actions between the N-H groups of the macrocycles and the O-H groups of coordinated water mol-ecules as the proton donors and the O atoms of the carboxyl-ate as the proton acceptors into layers lying parallel to the (11) plane.

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Project description:The title compound, C26H48N4Si3, was synthesized by the reaction of 2,2-di-chloro-tris-ilane with 3,5-bis-(di-methyl-amino)-phenyl-lithium. In the mol-ecule, the dihedral angle between the benzene rings is 57.57 (7)° and the Si-Si-Si bond angle is 110.08 (2)°. In the crystal, mol-ecules are linked via an SiC-H⋯π(ar-yl) inter-action, forming a chain along the c-axis direction.

| S-EPMC9462273 | biostudies-literature

(2S,4R)-2-[(1R)-1-(4-Bromo-phen-yl)-2-nitro-eth-yl]-4-ethyl-cyclo-hexa-none.

Project description:The crystal structure of the title compound, C(16)H(20)BrNO(3), contains three chiral centers in the configuration 1R,2S,6R. The cyclo-hexane ring is in a chair conformation. In the crystal, mol-ecules are linked by weak C-H⋯O inter-actions, forming chains along the a-axis direction.

| S-EPMC3569793 | biostudies-literature

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