Abstract
The title compound, C22H14F3N3, 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 trifluoromethyl group. The phenyl ring is twisted as a result of steric interactions involving the bulky trifluoromethyl 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 interactions between the terminal pyridine rings of adjacent molecules along the stack. The perpendicular distance between the mean planes through the terpy moieties of adjacent molecules is 3.4 (1) Å.
Highlights
The title compound, C22H14F3N3, is a versatile tridentate Ndonor ligand consisting of a terpyridyl molecule substituted in the 40-position by a phenyl group, itself substituted in an ortho-position by a bulky trifluoromethyl group
The phenyl ring is twisted as a result of steric interactions involving the bulky trifluoromethyl 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)
Summary
The title compound, C22H14F3N3, is a versatile tridentate Ndonor ligand consisting of a terpyridyl (terpy) molecule substituted in the 40-position by a phenyl group, itself substituted in an ortho-position by a bulky trifluoromethyl group. The phenyl ring is twisted as a result of steric interactions involving the bulky trifluoromethyl 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 structure is is loosely stabilized by – interactions between the terminal pyridine rings of adjacent molecules along the stack. The perpendicular distance between the mean planes through the terpy moieties of adjacent molecules is 3.4 (1) A. See Constable et al (1990, 1992); Hunter & Sanders (1990); Krohnke (1976); Thummel & Jahng (1985)
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