The crystal structure of 4′-{4-[(2,2,5,5-tetramethyl-N-oxyl-3-pyrrolin-3-yl)ethynyl]phenyl}-2,2′:6′,2′′-terpyridine
نویسندگان
چکیده
The terpyridine group of the title compound, C31H27N4O, assumes an all-transoid conformation and is essentially planar with the dihedral angles between the mean planes of the central pyridine and the two outer rings amounting to 3.87 (5) and 1.98 (5)°. The pyrroline-N-oxyl group commonly seen in such nitroxyls is found in the title structure and the mean plane of the pyrroline ring subtends a dihedral angle of 88.44 (7)° to the mean plane of the central pyridine ring. The intra-molecular separation between the nitrogen atom of the central pyridine unit of the terpyridine group and the nitroxyl group is 14.120 (2) Å. In the crystal, the mol-ecules are arranged in layers stacked along [001]. Slipped face-to-face π-π inter-actions between the pyridine rings are observed along this direction with the shortest centroid-centroid distances amounting to 3.700 (1) and 3.781 (1) Å. Furthermore, edge-on C-H⋯π inter-actions between the phenyl-ene rings of neighbouring mol-ecules are observed along this direction. A two-dimensional C-H⋯O hydrogen-bonded network is formed within the (010) plane. The shortest O⋯O separation between neighbouring mol-ecules is 5.412 (3) Å.
منابع مشابه
Crystal structure of 4′-{[4-(2,2′:6′,2′′-terpyridyl-4′-yl)phenyl]ethynyl}biphenyl-4-yl (2,2,5,5-tetramethyl-1-oxyl-3-pyrrolin-3-yl)formate benzene 2.5-solvate
The title compound, C44H35N4O3·2.5C6H6 (1), consists of a terpyridine and a N-oxylpyrroline-3-formate group separated by an aromatic spacer, viz. 4-(phenyl-ethyn-yl)-1,1'-biphenyl. It crystallized in the triclinic space group P-1 with two and a half benzene solvate mol-ecules (one benzene mol-ecule is located about an inversion center), while the di-chloro-methane solvate (2) of the same mol-ec...
متن کامل4,4′,4′′-(Methanetriyl)triphenyl tris(2,2,5,5-tetramethyl-1-oxyl-3-pyrroline-3-carboxylate) benzene trisolvate
In the asymmetric unit of the title compound, C(46)H(52)N(3)O(9)·3C(6)H(6), two of the benzene solvent mol-ecules are located in general positions and two are disposed about inversion centers. One of the benzene mol-ecules on an inversion center was grossly disordered and was excluded using the SQUEEZE subroutine in PLATON [Spek (2009 ▶). Acta Cryst. D65, 148-155]. In addition, one of the 2,2,5...
متن کامل4,4′-{[4-(2,2′:6′,2′′-Terpyridin-4′-yl)phenyl]imino}dibenzaldehyde
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].
متن کاملDiacetato{4′-[4-(benzyloxy)phenyl]-2,2′:6′,2′′-terpyridine}zinc(II)
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....
متن کامل4′-[4-(Pyridin-2-yl)phenyl]-2,2′:6′,2′′-terpyridine
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.
متن کامل