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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.

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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-[4-(methyl-sulfan-yl)phen-yl]prop-2-en-1-one.

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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.

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

Project description:In the title compound, C(28)H(19)F(3)O(2), the central benzene ring forms dihedral angles of 48.69?(6), 60.93?(6) and 42.06?(6)° with the fluoro-benzene rings. In the crystal, inter-molecular C-H?O and C-H?F hydrogen bonds link the mol-ecules, forming an undulating two-dimensional network parallel to the bc plane. C-H?? inter-actions further consolidate the crystal packing.

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