scholarly journals Crystal structure of 2,5-bis(diphenylphosphanyl)furan

2015 ◽  
Vol 71 (12) ◽  
pp. o922-o923 ◽  
Author(s):  
Carla Martínez de León ◽  
Hugo Tlahuext ◽  
Jean-Michel Grévy
Keyword(s):  
Crystal Structure ◽  
Title Compound ◽  
Axis Direction ◽  
Π Interactions ◽  
Pyramidal Geometry ◽  
Compound C ◽  
Supramolecular Chains

In the title compound, C28H22OP2, each of the P atoms has an almost perfect pyramidal geometry, with C—P—C angles varying from 100.63 (10) to 102.65 (9)°. In the crystal, neighbouring molecules are linkedviaweak C—H...π interactions, forming supramolecular chains along theb-axis direction.

scholarly journals Crystal structure of 1-nitro-4-(trimethylsilylethynyl)naphthalene

2015 ◽  
Vol 71 (5) ◽  
pp. o311-o312 ◽  
Author(s):  
Jun Du ◽  
Graeme J. Moxey
Keyword(s):  
Crystal Structure ◽  
Nitro Group ◽  
Dihedral Angle ◽  
Title Compound ◽  
Axis Direction ◽  
Π Interactions ◽  
Compound C ◽  
The Mean ◽  
Supramolecular Chains

In the title compound, C15H15NO2Si, the dihedral angle between the nitro group and the mean plane of the naphthalene system is 22.04 (11)°. In the crystal, π–π interactions generate supramolecular chains propagating along thea-axis direction; the centroid-to-centroid distances range from 3.5590 (12) to 3.8535 (12) Å.

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 methyl 1-allyl-4-methyl-1H-benzo[c][1,2]thiazine-3-carboxylate 2,2-dioxide

2016 ◽  
Vol 72 (11) ◽  
pp. 1574-1576 ◽  
Author(s):  
Liliana Azotla-Cruz ◽  
Svitlana Shishkina ◽  
Igor Ukrainets ◽  
Irina Lijanova ◽  
Natalya Likhanova
Keyword(s):  
Crystal Structure ◽  
Title Compound ◽  
Acetate Group ◽  
Axis Direction ◽  
Π Interactions ◽  
Compound C ◽  
The Mean

In the title compound, C14H15NO4S, the dihydrothiazine ring adopts a distorted sofa conformation with the S atom displaced from the mean plane through the N and C ring atoms by 0.767 (1) Å. The allyl substituent (C—C=C) is inclined to this mean plane by 78.5 (7)° and the acetate group [C(=O)—O—C] by 66.5 (3)°. In the crystal, molecules are linked by C—H...π interactions forming chains propagating along thea-axis direction.

scholarly journals Crystal structure of (Z)-3-{3-(4-chlorophenyl)-2-[(4-chlorophenyl)imino]-2,3-dihydrothiazol-4-yl}-2H-chromen-2-one

2014 ◽  
Vol 70 (12) ◽  
pp. o1268-o1269
Author(s):  
M. Kayalvizhi ◽  
G. Vasuki ◽  
R. Raj Kumar ◽  
V. Rajeswar Rao
Keyword(s):  
Crystal Structure ◽  
Dihedral Angle ◽  
Title Compound ◽  
Ring System ◽  
Thiazole Ring ◽  
Maximum Deviation ◽  
Axis Direction ◽  
Π Interactions ◽  
Compound C ◽  
Chromene Ring

In the title compound, C24H14Cl2N2O2S, the 2H-chromene ring system is approximately planar, with a maximum deviation of 0.025 (2) Å. The thiazole ring is almost planar, with an r.m.s. deviation of 0.0022 Å, and makes a dihedral angle of 58.52 (7)° with the chromene ring system. The chromene ring system is inclined at angles of 58.3 (1) and 55.39 (9)° with respect to the two chlorophenyl rings. The two chlorophenyl rings show significant deviation from coplanarity, with a dihedral angle between them of 47.69 (8)°. The crystal structure features C—H...Cl interactions extending in (100) and propagating along thea-axis direction and weak π–π interactions [centroid–centroid separation = 3.867 (2) Å].

scholarly journals Crystal structure of (E)-furan-2-carbaldehydeO-benzoyloxime

2017 ◽  
Vol 73 (9) ◽  
pp. 1326-1328
Author(s):  
Yousef M. Hijji ◽  
Rajeesha Rajan ◽  
Said Mansour ◽  
Hamdi Ben Yahia
Keyword(s):  
Crystal Structure ◽  
Hydrogen Bonds ◽  
Benzene Ring ◽  
Dihedral Angle ◽  
Title Compound ◽  
Twist Angle ◽  
Axis Direction ◽  
Π Interactions ◽  
Compound C ◽  
And Inversion

In the title compound, C12H9NO3, the benzoate and furan rings are almost coplanar, making a dihedral angle of 11.68 (9)°. The twist angle between the –COO group and the benzene ring is only 2.79 (16)°. In the crystal, molecules are linked by C—H...O hydrogen bonds, forming chains along [100]. The molecules stack in a herringbone fashion and inversion-related chains are linked by offset π–π interactions [intercentroid distance = 3.931 (1) Å], forming ribbons propagating along thea-axis direction.

scholarly journals Crystal structure ofN1,N1-diethyl-N4-[(quinolin-2-yl)methylidene]benzene-1,4-diamine

2015 ◽  
Vol 71 (1) ◽  
pp. o49-o50 ◽  
Author(s):  
Md. Serajul Haque Faizi ◽  
Nazia Siddiqui ◽  
Saleem Javed
Keyword(s):  
Crystal Structure ◽  
Dihedral Angle ◽  
Title Compound ◽  
Axis Direction ◽  
Π Interactions ◽  
Compound C ◽  
A Chain

The title compound, C20H21N3, is non-planar with a dihedral angle between the planes of the quinoline and phenylenediamine rings of 9.40 (4)°. In the crystal, molecules are connected by C—H...π interactions, generating a chain extending along thea-axis direction. Weak C—H...π interactions also occur.

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 Crystal structure of 4-methyl-N-(4-methylbenzyl)benzenesulfonamide

2020 ◽  
Vol 76 (2) ◽  
pp. 235-238
Author(s):  
Brock A. Stenfors ◽  
Richard J. Staples ◽  
Shannon M. Biros ◽  
Felix N. Ngassa
Keyword(s):  
Crystal Structure ◽  
Hydrogen Bonds ◽  
Title Compound ◽  
Substitution Reaction ◽  
Three Dimensional ◽  
Aromatic Rings ◽  
Axis Direction ◽  
Π Interactions ◽  
Compound C ◽  
Dimensional Network

The title compound, C15H17NO2S, was synthesized via a substitution reaction between 4-methylbenzylamine and p-toluenesulfonyl chloride. In the crystal, N—H...O hydrogen bonds link the molecules, forming ribbons running along the b-axis direction. One of the aromatic rings hosts two intermolecular C—H...π interactions that link these hydrogen-bonded ribbons into a three-dimensional network.

scholarly journals Crystal structure of a photobiologically active brominated angular pyranocoumarin: bromo-hydroxy-seselin

2017 ◽  
Vol 73 (3) ◽  
pp. 453-455 ◽  
Author(s):  
A. K. Bauri ◽  
Sabine Foro ◽  
A. F. M. Mustafizur Rahman
Keyword(s):  
Crystal Structure ◽  
Hydrogen Bonds ◽  
Title Compound ◽  
Chair Conformation ◽  
Axis Direction ◽  
Π Interactions ◽  
Compound C ◽  
Ring Motif

The title compound, C14H13BrO3[systematic name:rac-(9S,10R)-9-bromo-10-hydroxy-8,8-dimethyl-9,10-dihydro-2H,8H-pyrano[2,3-f]chromen-2-one], is a substituted pyranocoumarin, obtained by bromination of seselin [8,8-dimethyl-2H,8H-pyrano[2,3-f]chromen-2-one], which was isolated from the Indian herbTrachyspermum stictocarpum(Aajmod). The pyrano ring has a distorted half-chair conformation and its mean plane is inclined to the coumarin mean plane by 1.6 (2)°. In the crystal, molecules are linked by pairs of O—H...O hydrogen bonds, forming inversion dimers with anR22(16) ring motif. The dimers stack along thea-axis direction and are linked by offset π–π interactions, forming columns [intercentroid distance = 3.514 (4) Å].

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