N,N′-(2,2′-Dithiodi-o-phenylene)bis(furan-2-carboxamide)
نویسندگان
چکیده
The reaction of 2,2'-dithio-bis(benzenamine) with furan-2-carbonyl chloride produced the bis-amide title compound, C(22)H(16)N(2)O(4)S(2), which, in the crystal, formed a helix; the structure consists of two planar furanoylbenzenamines related by an improper rotation of 96.3° about the S-S bond. The N-furanoylbenzenamine units are planar (maximum deviations = 0.316 and 0.132 Å). Each electron-deficient acyl-furan stacks (centroid-centroid separations of the two pairs of π-π stacked aromatic rings are 3.918 and 3.953 Å) with the electron-rich benzenamine of the other N-furan-oyl-benzenamine unit, leading to a spiral structure. The conformation is stabilized by two bifurcated intramolecular N-H⋯(O,S) interactions.
منابع مشابه
N,N′-(Biphenyl-2,2′-diyl)bis(furan-2-carboxamide)
The title mol-ecule, C(22)H(16)N(2)O(4), is a 2,2'-disubstituted biphenyl whose phenyl-ene rings are rotated by 66.5 (1)° so as to avoid repulsion by the substituents. Only one of the two amide -NH- fragments engages in hydrogen bonding, and this inter-acts with the amido -C(=O)- acceptor of an inversion-related mol-ecule to generate a hydrogen-bonded dimer.
متن کاملN,N′-(Ethane-1,2-diyldi-o-phenylene)bis(pyridine-2-carboxamide)
The title mol-ecule, C(26)H(22)N(4)O(2), is centrosymmetric and adopts an anti conformation. Two intra-molecular hydrogen bonds, viz. amide-pyridine N-H⋯N and phen-yl-amide C-H⋯O, stabilize the trans conformation of the (pyridine-2-carboxamido)-phenyl group about the amide plane. In the crystal, the presence of weak inter-molecular C-H⋯O hydrogen bonds results in the formation of a three-dimens...
متن کامل2,2′-{[(2,2′-Diethoxy-1,1′-binaphthalene-6,6′-diyl)bis(4,1-phenylene)]bis(methanylylidene)}dimalononitrile
The title compound, C(44)H(30)N(4)O(2), was prepared from 6,6'-dibromo-2,2'-dieth-oxy-1,1'-binaphthalene through a coupling reaction with 4-(4,4,5,5-tetra-methyl-1,3,2-dioxaborolan-2-yl)benzaldehyde followed by a Knoevenagel reaction with malononitrile. The dihedral angle between the symmetry-related naphthalene ring systems is 68.82 (8)° while the dihedral angle between the the naphthalene rin...
متن کاملN,N′-(4,5-Dimethyl-1,2-phenylene)bis(pyridine-2-carboxamide)
In the title compound, C(20)H(18)N(4)O(2), the dihedral angles between the central benzene ring and the pyridine rings are 57.55 (6) and 22.05 (8)°. The mol-ecular conformation is stabilized by intra-molecular N-H⋯N inter-actions and in the crystal structure an inter-molecular asymmetric cyclic hydrogen-bonding association involving both amide N-H donors and a common amide O-atom acceptor gives...
متن کامل{N,N′-[2,2′-(Ethane-1,2-diyldisulfanediyl)di-o-phenylene]bis(quinoline-2-carboxamidato)}copper(II)
In the title compound, [Cu(C(34)H(24)N(4)O(2)S(2))] or [Cu(bqdapte)], where H(2)bqdapte is 1,2-{bis-[2-(quinoline-2-carboxamido)-phen-yl]sulfan-yl}ethane, the Cu(II) ion is coordinated to the dianionic hexa-dentate bqdapte(2-) ligand by two amide and two quinoline N atoms and two thio-ether S atoms. In the observed conformation of the hexa-dentate ligand, the quinoline rings attain positions re...
متن کامل