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Methyl 4,4''-difluoro-5'-meth-oxy-1,1':3',1''-terphenyl-4'-carboxyl-ate.

ABSTRACT: In the title compound, C(21)H(16)F(2)O(3), the pendant fluoro-benzene rings form dihedral angles of 22.22?(12) and 50.74?(11)° with the central benzene ring. In the crystal, mol-ecules are linked by C-H?O hydrogen bonds into chains along the a axis. The crystal structure also features C-H?? inter-actions.

SUBMITTER: Fun HK

PROVIDER: S-EPMC3239031 | biostudies-literature | 2011 Dec

REPOSITORIES: biostudies-literature

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Methyl 4,4''-difluoro-5'-meth-oxy-1,1':3',1''-terphenyl-4'-carboxyl-ate.

Fun Hoong-Kun HK Chia Tze Shyang TS Samshuddin S S Samshuddin S S Narayana B B Sarojini B K BK

Acta crystallographica. Section E, Structure reports online 20111123 Pt 12

In the title compound, C(21)H(16)F(2)O(3), the pendant fluoro-benzene rings form dihedral angles of 22.22 (12) and 50.74 (11)° with the central benzene ring. In the crystal, mol-ecules are linked by C-H⋯O hydrogen bonds into chains along the a axis. The crystal structure also features C-H⋯π inter-actions. ...[more]

PMID: 22199879

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Ethyl 4,4''-difluoro-5'-meth-oxy-1,1':3',1''-terphenyl-4'-carboxyl-ate.

Project description:In the title compound, C(22)H(18)F(2)O(3), the two fluoro-substituted rings form dihedral angles of 25.89?(15) and 55.00?(12)° with the central benzene ring. The eth-oxy group in the mol-ecule is disordered over two positions with a site-occupancy ratio of 0.662?(7):0.338?(7). In the crystal, mol-ecules are linked by C-H?O hydrogen bonds into chains along the a axis. The crystal packing is further stabilized by C-H?? and ?-? inter-actions, with centroid-centroid distances of 3.8605?(15)?Å.

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1-(4,4''-Difluoro-5'-meth-oxy-1,1':3',1''-terphenyl-4'-yl)ethanone.

Project description:In the title compound, C(21)H(16)F(2)O(2), the central benzene ring is inclined at dihedral angles of 30.91?(8) and 46.88?(7)° to the two terminal fluoro-substituted rings. The dihedral angle between the two terminal fluoro-subsituted rings is 68.34?(8)°. An intra-molecular C-H?O hydrogen bond generates an S(6) ring motif. The crystal structure is stabilized by weak C-H?? inter-actions.

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(E)-1-(4,4''-Difluoro-5'-meth-oxy-1,1':3',1''-terphenyl-4'-yl)-3-(4-methyl-phen-yl)prop-2-en-1-one.

Project description:In the meta-terphenyl fragment of the title mol-ecule, C(29)H(22)F(2)O(2), the two fluoro-phenyl rings are twisted from the central benzene ring by 46.72 (6) and 41.70 (6)°, respectively. In the crystal, weak C-H⋯O and C-H⋯F hydrogen bonds link the mol-ecules into layers parallel to the ab plane. The crystal packing exhibits π-π inter-actions, the shortest distance between the centroids of aromatic rings being 3.6364 (7) Å.

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(E)-1-(4,4''-Difluoro-5'-meth-oxy-1,1':3',1''-terphenyl-4'-yl)-3-(4-meth-oxy-phen-yl)prop-2-en-1-one.

Project description:The title compound, C(29)H(22)F(2)O(3), is a meta-terphenyl derivative featuring a Michael-system-derived substituent with an E-configured C=C function. In the crystal, C-H⋯O and C-H⋯F contacts connect the mol-ecules into planes parallel to (101). The shortest centroid-centroid distance between two aromatic systems is 3.7169 (7) Å and is apparent between the terminal benzene ring of the Michael-system-derived substituent and its symmetry-generated equivalent.

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(2E)-1-(4,4''-Difluoro-5'-meth-oxy-1,1':3',1''-terphenyl-4'-yl)-3-(2,6-difluoro-phen-yl)prop-2-en-1-one.

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(E)-1-(4,4''-Difluoro-5'-meth-oxy-1,1':3',1''-terphenyl-4'-yl)-3-(6-meth-oxy-naphthalen-2-yl)prop-2-en-1-one.

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(E)-1-(4,4''-Difluoro-5'-meth-oxy-1,1':3',1''-terphenyl-4'-yl)-3-phenyl-prop-2-en-1-one.

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(2E)-1-(4,4''-Difluoro-5'-meth-oxy-1,1':3',1''-terphenyl-4'-yl)-3-[4-(methyl-sulfan-yl)phen-yl]prop-2-en-1-one.

Project description:In the title compound, C(29)H(22)F(2)O(2)S, the central benzene ring makes dihedral angles of 45.83?(7), 38.90?(7) and 55.50?(7)° with the two fluoro-substituted benzene rings and the methyl-sulfanyl-substituted benzene ring, respectively. In the crystal, C-H?O contacts connect the mol-ecules into layers lying perpendicular to the c axis. In addition, ?-? stacking inter-actions between one of the fluoro-phenyl groups [centroid-centroid distances = 3.681?(1) and 3.818?(1)?Å] are observed.

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(2E)-3-(3-Bromo-4-meth-oxy-phen-yl)-1-(4,4''-difluoro-5'-meth-oxy-1,1':3',1''-terphenyl-4'-yl)prop-2-en-1-one.

Project description:In the title compound, C(29)H(21)BrF(2)O(3), the dihedral angles between the central anisole ring and the pendant fluoro-benzene rings are 48.86 (19) and 31.89 (18)°. The dihedral angle between the anisole ring and the 1-bromo-2-meth-oxy-benzene ring linked via the enone bridge is 82.95 (17)°. In the crystal, C-H⋯O hydrogen bonds link the mol-ecules into C(11) chains propagating along [010].

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Dimethyl 3,3'-di-meth-oxy-biphenyl-4,4'-di-carboxyl-ate.

Project description:In the title compound, C18H18O6, the biphenyl moiety is twisted with a dihedral angle of 29.11 (10)°. The carbometh-oxy groups form C-C-C-O torsion angles of -18.3 (3) and -27.7 (3)° with the attached rings, as a result of steric hindrances from the nearby meth-oxy groups. In the absence of stacking inter-actions and with no H⋯O contacts shorter than 2.7 Å, the packing is dominated by weaker van der Waals inter-actions.

| S-EPMC3998533 | biostudies-literature

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