scholarly journals 3-(2-Fluorophenylsulfonyl)-2,5,7-trimethyl-1-benzofuran

2014 ◽  
Vol 70 (5) ◽  
pp. o566-o566 ◽  
Author(s):  
Hong Dae Choi ◽  
Pil Ja Seo ◽  
Uk Lee
Keyword(s):  
Hydrogen Bonds ◽  
Dihedral Angle ◽  
Title Compound ◽  
Axis Direction ◽  
Π Interactions ◽  
Compound C ◽  
The Mean ◽  
Supramolecular Chains

In the title compound, C17H15FO3S, the dihedral angle between the mean planes of the benzofuran and 2-fluorophenyl rings is 87.61 (4) Å. In the crystal, molecules are linkedviapairs of C—H...π interactions into inversion-related dimers. These dimers are linked by C—H...O hydrogen bonds into supramolecular chains running along thea-axis direction.

scholarly journals 2-Methyl-1-(3-methylphenylsulfonyl)naphtho[2,1-b]furan

2014 ◽  
Vol 70 (4) ◽  
pp. o416-o416
Author(s):  
Hong Dae Choi ◽  
Pil Ja Seo ◽  
Uk Lee
Keyword(s):  
Hydrogen Bonds ◽  
Dihedral Angle ◽  
Title Compound ◽  
Axis Direction ◽  
Π Interactions ◽  
Compound C ◽  
Centroid Distance ◽  
The Mean ◽  
Supramolecular Chains

In the title compound, C20H16O3S, the dihedral angle between the mean planes of the naphthofuran and 3-methylphenyl fragments is 88.56 (2)°. In the crystal, molecules are linkedviapairs of C—H...O hydrogen bonds, forming inversion dimers. These dimers are linked by π–π interactions between the furan rings of neighbouring molecules [centroid–centroid distance = 3.701 (2) Å] into supramolecular chains running along thea-axis direction.

scholarly journals 5-Bromo-2,7-dimethyl-3-(3-methylphenylsulfonyl)-1-benzofuran

2014 ◽  
Vol 70 (5) ◽  
pp. o567-o567
Author(s):  
Hong Dae Choi ◽  
Pil Ja Seo ◽  
Uk Lee
Keyword(s):  
Hydrogen Bonds ◽  
Dihedral Angle ◽  
Title Compound ◽  
Axis Direction ◽  
Π Interactions ◽  
Compound C ◽  
The Mean ◽  
Supramolecular Chains

In the title compound, C17H15BrO3S, the dihedral angle between the mean planes of the benzofuran and 3-methylphenyl rings is 77.37 (5)°. In the crystal, molecules are linkedviapairs of Br...O [Br...O = 3.335 (2) Å] contacts into inversion dimers. These dimers are further linked by C—H...O hydrogen bonds and π–π interactions between the benzene and furan rings of neighbouring molecules [centroid–centroid separation = 3.884 (3) Å] into supramolecular chains running along thea-axis direction.

scholarly journals 3-(Adamantan-1-yl)-4-benzyl-1H-1,2,4-triazole-5(4H)-thione

2014 ◽  
Vol 70 (7) ◽  
pp. o766-o767 ◽  
Author(s):  
Fatmah A. M. Al-Omary ◽  
Hazem A. Ghabbour ◽  
Ali A. El-Emam ◽  
C. S. Chidan Kumar ◽  
Hoong-Kun Fun
Keyword(s):  
Hydrogen Bonds ◽  
Dihedral Angle ◽  
Title Compound ◽  
Crystal Packing ◽  
Triazole Ring ◽  
Axis Direction ◽  
Π Interactions ◽  
Compound C ◽  
Supramolecular Chains

The title compound, C19H23N3S, is a functionalized triazoline-3-thione derivative. The benzyl ring is almost normal to the planar 1,2,4-triazole ring (r.m.s. deviation = 0.007 Å) with a dihedral angle of 86.90 (7)°. In the crystal, molecules are linked by pairs of N—H...S hydrogen bonds, forming inversion dimers that encloseR22(8) loops. The crystal packing is further stabilized by weak C—H...π interactions that link adjacent dimeric units into supramolecular chains extending along thea-axis direction.

scholarly journals Crystal structure of dimethyl 3,3′-[(4-fluorophenyl)methylene]bis(1H-indole-2-carboxylate)

2015 ◽  
Vol 71 (10) ◽  
pp. 1140-1142 ◽  
Author(s):  
Hong-Shun Sun ◽  
Yu-long Li ◽  
Hong Jiang ◽  
Ning Xu ◽  
Hong Xu
Keyword(s):  
Crystal Structure ◽  
Hydrogen Bonds ◽  
Dihedral Angle ◽  
Title Compound ◽  
Indole Ring ◽  
Ring Systems ◽  
Π Interactions ◽  
Compound C ◽  
The Mean ◽  
Supramolecular Chains

In the title compound, C27H21FN2O4, the mean planes of the indole ring systems (r.m.s. deviations = 0.0263 and 0.0160 Å) are approximately perpendicular to one another, making a dihedral angle of 84.0 (5)°; the fluorobenzene ring is twisted with respect to the mean planes of the two indole ring systems at 89.5 (5) and 84.6 (3)°. In the crystal, pairs of N—H...O hydrogen bonds link the molecules into inversion dimers, which are further linked by N—H...O hydrogen bonds into supramolecular chains propagated along theb-axis direction. Weak C—H...π interactions are observed between neighbouring chains.

scholarly journals Crystal structure of 4-(4b,8a-dihydro-9H-pyrido[3,4-b]indol-1-yl)-7-methyl-2H-chromen-2-one

2017 ◽  
Vol 73 (1) ◽  
pp. 56-58 ◽  
Author(s):  
S. Samundeeswari ◽  
Manohar V. Kulkarni ◽  
G. N. Anil Kumar
Keyword(s):  
Crystal Structure ◽  
Hydrogen Bonds ◽  
Dihedral Angle ◽  
Title Compound ◽  
Ring Systems ◽  
Axis Direction ◽  
Π Interactions ◽  
Compound C ◽  
The Mean

The title compound, C21H14N2O2, was prepared by Pictet–Spengler cyclization of tryptamine and 4-formyl coumarin. In the molecule, the dihedral angle between the mean planes of the coumarin and β-carboline ring systems is 63.8 (2)°. In the crystal, molecules are linkedviaN—H...N hydrogen bonds, forming chains along theb-axis direction. Within the chains, there are a number of offset π–π interactions present [shortest intercentroid distance = 3.457 (2) Å].

scholarly journals Ethyl (E)-2-(2,7-dimethyl-5-oxo-4H,5H-pyrano[4,3-b]pyran-4-ylidene)acetate

IUCrData ◽  
2017 ◽  
Vol 2 (2) ◽  
Author(s):  
Oulemda Bassou ◽  
Hakima Chicha ◽  
Latifa Bouissane ◽  
El Mostapha Rakib ◽  
Mohamed Saadi ◽  
...  
Keyword(s):  
Hydrogen Bonds ◽  
Dihedral Angle ◽  
Title Compound ◽  
Intramolecular Hydrogen Bonds ◽  
Axis Direction ◽  
Π Interactions ◽  
Compound C ◽  
Acceptor Atom ◽  
The Mean ◽  
Intramolecular Hydrogen

In the title compound, C14H14O5, the two heterocyclic rings are coplanar (r.m.s. deviation = 0.008 Å), with the largest deviation from the mean plane being 0.012 (1) Å. The mean plane through the acetate group is inclined slightly with respect to the oxopyrano[4,3-b]pyran-4-yl system, as indicated by the dihedral angle of 1.70 (7)° between them. Two intramolecular hydrogen bonds, completingS(6) ring motifs, are observed in the molecule. In the crystal, molecules are linked by weak C—H...O hydrogen bonds involving the same acceptor atom, forming chains propagating along thec-axis direction and enclosingR21(6) ring motifs. The chains are linkedviaoffset π–π interactions [intercentroid distance = 3.622 (1) Å], involving inversion-related oxopyrano[4,3-b]pyran-4-yl ring systems, forming slabs parallel to thebcplane.

scholarly journals 5-Fluoro-2-methyl-3-(3-methylphenylsulfonyl)-1-benzofuran

2014 ◽  
Vol 70 (4) ◽  
pp. o482-o482
Author(s):  
Hong Dae Choi ◽  
Pil Ja Seo ◽  
Uk Lee
Keyword(s):  
Hydrogen Bonds ◽  
Dihedral Angle ◽  
Title Compound ◽  
Ring System ◽  
Axis Direction ◽  
Π Interactions ◽  
Compound C ◽  
Centroid Distance ◽  
Benzene Rings ◽  
The Mean

In the title compound, C16H13FO3S, the dihedral angle between the mean planes of the benzofuran ring system and the 3-methylphenyl ring is 80.96 (4)°. In the crystal, molecules are linkedviapairs of π–π interactions between furan and benzene rings, with centroid–centroid distances of 3.758 (1) and 3.771 (1) Å. A similar interaction is found between furan rings, with a centroid–centroid distance of 3.661 (1) Å between neighbouring molecules. The molecules stack along thea-axis direction. In addition, C—H...O and C—H...π hydrogen bonds are observed between inversion-related dimers.

scholarly journals 5-Cyclohexyl-2-methyl-3-(3-methylphenylsulfonyl)-1-benzofuran

2014 ◽  
Vol 70 (4) ◽  
pp. o494-o494
Author(s):  
Hong Dae Choi ◽  
Pil Ja Seo ◽  
Uk Lee
Keyword(s):  
Hydrogen Bonds ◽  
Benzene Ring ◽  
Dihedral Angle ◽  
Title Compound ◽  
Chair Conformation ◽  
Ring System ◽  
Π Interactions ◽  
Compound C ◽  
The Mean ◽  
Supramolecular Chains

In the title compound, C22H24O3S, the cyclohexyl ring adopts a chair conformation. The dihedral angle between the mean plane [r.m.s. deviation = 0.010 (1) Å] of the benzofuran ring system and the benzene ring is 81.78 (4)°. In the crystal, molecules are linkedviapairs of C—H...π interactions into inversion dimers. These dimers are further linked by C—H...π interactions into supramolecular chains running along theb-axis direction. In addition, C—H...O hydrogen bonds are observed between inversion-related dimers.

scholarly journals 5-Chloro-2,7-dimethyl-3-(3-methylphenylsulfonyl)-1-benzofuran

2014 ◽  
Vol 70 (5) ◽  
pp. o568-o568 ◽  
Author(s):  
Hong Dae Choi ◽  
Pil Ja Seo ◽  
Uk Lee
Keyword(s):  
Hydrogen Bonds ◽  
Dihedral Angle ◽  
Title Compound ◽  
Axis Direction ◽  
Π Interactions ◽  
Compound C ◽  
Centroid Distance ◽  
The Mean

In the title compound, C17H15ClO3S, the dihedral angle between the mean planes of the benzofuran and 3-methylphenyl rings is 76.99 (4)°. In the crystal, molecules are linked by C—H...O hydrogen bonds into chains along theb-axis direction. These chains are linked by π–π interactions between the benzene and furan rings of neighbouring molecules [centroid–centroid distance = 3.976 (2) Å].

scholarly journals 5-Cyclopentyl-2-methyl-3-(3-methylphenylsulfonyl)-1-benzofuran

2014 ◽  
Vol 70 (4) ◽  
pp. o481-o481 ◽  
Author(s):  
Hong Dae Choi ◽  
Pil Ja Seo ◽  
Uk Lee
Keyword(s):  
Hydrogen Bonds ◽  
Dihedral Angle ◽  
Title Compound ◽  
Membered Ring ◽  
Axis Direction ◽  
Π Interactions ◽  
Envelope Conformation ◽  
Compound C ◽  
The Mean

In the title compound, C21H22O3S, the five-membered ring adopts an envelope conformation with theipsoatom deviating by 0.596 (2) Å from the plane through the rest of the ring atoms. The dihedral angle between the mean planes of the benzofuran andm-tolyl moieties is 78.4 (1)°. In the crystal, molecules related by a glide plane are linkedviaC—H...O hydrogen bonds into chains along thea-axis direction. These chains are in turn connected by C—H...π interactions into layers parallel to theacplane.

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