4′-[2-(Trifluoromethyl)phenyl]-2,2′:6′,2′′-terpyridine
نویسندگان
چکیده
The title compound, C(22)H(14)F(3)N(3), is a versatile tridentate N-donor ligand consisting of a terpyridyl (terpy) molecule substituted in the 4'-position by a phenyl group, itself substituted in an ortho-position by a bulky trifluoro-methyl group. The phenyl ring is twisted as a result of steric inter-actions involving the bulky trifluoro-methyl substituent. This is reflected in the dihedral angle between the mean plane through the C atoms of the phenyl ring and the terpyridyl unit being 69.2 (1)°. The crystal structure contains no short van der Waals contacts. However, the terpy units stack in a head-to-tail orientation perpendicular to the c axis. The structure is is loosely stabilized by π-π inter-actions between the terminal pyridine rings of adjacent mol-ecules along the stack. The perpendicular distance between the mean planes through the terpy moieties of adjacent mol-ecules is 3.4 (1) Å.
منابع مشابه
Diethyl [4-(2,2′:6′,2′′-terpyridine-4′-yl)phenyl]phosphonate
The title compound, C25H24N3O3P, was obtained by catalytic phospho-nation of 4'-(4-bromphen-yl)-2,2':6',2''-terpyridine. The terpyridine moiety is nearly planar, the dihedral angles between the central and the outer rings being 4.06 (9) and 5.39 (9)°. The N atoms in the two pyridine rings are oriented nearly anti-periplanar to that of the central ring. The benzene ring is rotated out of the pla...
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In the title compound, [Zn(CH(3)COO)(2)(C(28)H(21)N(3)O)], the Zn(II) ion is in a trigonal-bipyramidal ZnN(3)O(2) coordination with a tridentate N-chelating 4'-[4-(benz-yloxy)phen-yl)-2,2':6',2''-terpyridine ligand in the equatorial position and two acetate anions in the axial positions. The three pyridine rings are approximately coplanar, with a maximum deviation of 0.03 Å from the mean plane....
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The asymmetric unit of the title compound, [PtCl(C(32)H(24)N(5))](ClO(4))(2)·2CH(3)CN·1.5H(2)O, comprises two unique Pt(II) complex cations, four perchlorate anions, four acetonitrile solvent mol-ecules and three water mol-ecules. The Pt atom is four-coordinated by a tridentate chelating 2,2':6',2''-terpyridine ligand and a chloride ion in a square-planar geometry with modest distortion imposed...
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The central pyridine ring of the 2,2':6',2''-terpyridine fragment of the title compound, C(35)H(24)N(4)O(2), forms dihedral angles of 8.3 (2), 10.6 (3) and 39.4 (3)°, respectively, with the two outer pyridine rings and the attached benzene ring. In the crystal, weak C-H⋯O inter-actions link the mol-ecules into chains in [010].
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In the title compound, C(26)H(18)N(4), each ring is almost planar with maximum deviation of 0.012 (5) Å. In the crystal, mol-ecules are stacked by weak C-H⋯π inter-actions, forming a three-dimensional framework.
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