scholarly journals Crystal structure of tris[4-(naphthalen-1-yl)phenyl]amine

2020 ◽  
Vol 76 (10) ◽  
pp. 1649-1652
Author(s):  
Masafumi Yano ◽  
Yukiyasu Kashiwagi ◽  
Yoshinori Inada ◽  
Yuki Hayashi ◽  
Koichi Mitsudo ◽  
...  
Keyword(s):  
Crystal Structure ◽  
Naphthalene Ring ◽  
Ring Systems ◽  
Column Structure ◽  
Title Molecule

In the title molecule, C48H33N, the central N atom shows no pyramidalization, so that the N atom and the three C atoms bound to the N atom lie almost in the same plane. The three para-phenylene rings bonded to the N atom are in a propeller form. All of the naphthalene ring systems are slightly bent. In the crystal, molecules form an inversion dimer, through two pairs of C—H...π interactions, which further interacts with the adjacent dimer via another two pairs of C—H...π interactions, forming a column structure along the a axis. There are no significant interactions between these column structures.

scholarly journals 2,7-Dimethoxy-1-(2-naphthoyl)naphthalene

2012 ◽  
Vol 68 (8) ◽  
pp. o2595-o2595 ◽  
Author(s):  
Takehiro Tsumuki ◽  
Atsumi Isogai ◽  
Atsushi Nagasawa ◽  
Akiko Okamoto ◽  
Noriyuki Yonezawa
Keyword(s):  
Hydrogen Bond ◽  
Dihedral Angle ◽  
Torsion Angle ◽  
Ring System ◽  
Naphthalene Ring ◽  
Ring Systems ◽  
Related Molecule ◽  
The Mean ◽  
Title Molecule

In the title molecule, C23H18O3, the dihedral angle between the two naphthalene ring systems is 80.44 (4)°. The mean plane of the bridging carbonyl C—C(=O)—C group makes a torsion angle of −68.55 (17)° with the naphthalene system of the 2,7-dimethoxynaphthalene unit and a torsion angle of −9.01 (19)° with the naphthalene ring system of the naphthoyl group. In the crystal, a weak C—H...O hydrogen bond occurs between the carbonyl O atom and an H atom of the naphthalene ring in the 2,7-dimethoxynaphthalene unit of a symmetry-related molecule.

scholarly journals Crystal structure of bromidobis(naphthalen-1-yl)antimony(III)

2014 ◽  
Vol 70 (10) ◽  
pp. m351-m351
Author(s):  
Omar bin Shawkataly ◽  
Hafiz Malik Hussien Abdelnasir ◽  
Mohd Mustaqim Rosli
Keyword(s):  
Crystal Structure ◽  
Hydrogen Bond ◽  
Dihedral Angle ◽  
Title Compound ◽  
Coordination Geometry ◽  
Naphthalene Ring ◽  
Ring Systems ◽  
Axis Direction ◽  
Ring Motif

In the title compound, [SbBr(C10H7)2], the SbIIIatom has a distorted trigonal–pyramidal coordination geometry and the planes of the two naphthalene ring systems make a dihedral angle of 80.26 (18)°. An intramolecular C—H...Br hydrogen bond forms anS(5) ring motif. In the crystal, weak C—H...Br interactions link the molecules into helical chains along theb-axis direction.

scholarly journals Pyrrolidin-1-ium 2-(naphthalen-1-yl)acetate–2-(naphthalen-1-yl)acetic acid (1/1)

2012 ◽  
Vol 68 (4) ◽  
pp. o1113-o1113
Author(s):  
Zhao Hong ◽  
Fu-Jun Yin ◽  
Xing-You Xu ◽  
Li-Jun Han ◽  
Li Ren
Keyword(s):  
Crystal Structure ◽  
Acetic Acid ◽  
Hydrogen Bonds ◽  
Dihedral Angle ◽  
Title Compound ◽  
Naphthalene Ring ◽  
Pyrrolidine Ring ◽  
Ring Systems ◽  
Envelope Conformation ◽  
Compound C

In the title compound, C4H10N+·C12H9O2−·C12H10O2, the pyrrolidine ring adopts an envelope conformation and the dihedral angle between the planes of the two naphthalene ring systems is 8.34 (10)°. The crystal structure is stabilized by O—H...O and N—H...O hydrogen bonds.

scholarly journals Crystal structure of (E)-1,3-bis(6-methoxynaphthalen-2-yl)prop-2-en-1-one

2015 ◽  
Vol 71 (11) ◽  
pp. o884-o885 ◽  
Author(s):  
Paresh N. Patel ◽  
Anju Chadha
Keyword(s):  
Crystal Structure ◽  
Title Compound ◽  
Three Dimensional ◽  
Dimensional Structure ◽  
Naphthalene Ring ◽  
Ring Systems ◽  
Three Dimensional Structure ◽  
Π Interactions ◽  
Compound C ◽  
Two Component

In the title compound, C25H20O3, the central –C(=O)—C=C– chain is disordered over two positions about the central C atom, with an occupancy ratio of 0.848 (6):0.152 (6). The molecule is twisted with the two naphthalene ring systems being inclined to one another by 52.91 (9)°. In the crystal, molecules are linked by C—H...π interactions, forming a three-dimensional structure. The structure was refined as a two-component twin with a 180 ° rotation about thec* axis.

scholarly journals Crystal structure ofN-[(2-hydroxynaphthalen-1-yl)(4-methylphenyl)methyl]acetamide

2015 ◽  
Vol 71 (4) ◽  
pp. o235-o235 ◽  
Author(s):  
Sharanbasappa Khanapure ◽  
Gajanan Rashinkar ◽  
Tarulata Chhowala ◽  
Sumati Anthal ◽  
Rajni Kant
Keyword(s):  
Crystal Structure ◽  
Hydrogen Bond ◽  
Hydrogen Bonds ◽  
Benzene Ring ◽  
Dihedral Angle ◽  
Ring System ◽  
Naphthalene Ring ◽  
Π Interactions ◽  
Title Molecule

In the title molecule, C20H19NO2, the naphthalene ring system subtends a dihedral angle of 82.50 (7)° with the benzene ring and an intramolecular N—H...O hydrogen bond closes anS(6) ring. In the crystal, molecules are linked by O—H...O hydrogen bonds, which generateC(8) chains propagating in the [010] direction. The crystal structure also features weak π–π interactions [centroid–centroid separation = 3.7246 (10) Å].

(S)-2,2′-Diethoxy-1,1′-binaphthyl

2006 ◽  
Vol 62 (4) ◽  
pp. o1342-o1343 ◽  
Author(s):  
Niels Thorup ◽  
Heinz-Josef Deussen ◽  
Klaus Bechgaard ◽  
Thomas Bjørnholm
Keyword(s):  
Crystal Structure ◽  
Intermolecular Interactions ◽  
Torsion Angle ◽  
Ring Systems ◽  
Weak Intermolecular Interactions ◽  
Naphthyl Ring ◽  
Title Molecule

The title molecule, C24H22O2, contains two planar naphthyl ring systems. The torsion angle around the the central C—C bond is 111.3 (2)° implying a transoid conformation with respect to the two ethoxy substituents. Only weak intermolecular interactions are present in the crystal structure.

scholarly journals Crystal structure ofN,N′-bis[2-((benzyl){[5-(dimethylamino)naphthalen-1-yl]sulfonyl}amino)ethyl]naphthalene-1,8:4,5-tetracarboximide 1,2-dichlorobenzene trisolvate

2016 ◽  
Vol 72 (10) ◽  
pp. 1503-1508
Author(s):  
Miguel Ángel Claudio-Catalán ◽  
Felipe Medrano ◽  
Hugo Tlahuext ◽  
Carolina Godoy-Alcántar
Keyword(s):  
Crystal Structure ◽  
Hydrogen Bonds ◽  
Dihedral Angles ◽  
Inversion Symmetry ◽  
Asymmetric Unit ◽  
Naphthalene Ring ◽  
Π Interactions ◽  
Compound C ◽  
Ring Centroid ◽  
Supramolecular Chains

The asymmetric unit of the title compound, C56H50N6O8S2·3C6H4Cl2, contains two half-molecules of the parent,AandB, which both have crystallographic inversion symmetry, together with three 2,3-dichlorobenzene molecules of solvation. MoleculesAandBare conformationally similar, with dihedral angles between the central naphthalenediimide ring and the peripheral naphthalene and benzyl rings of 2.43 (7), 81.87 (7)° (A) and 3.95 (7), 84.88 (7)° (B), respectively. The conformations are stabilized by the presence of intramolecular π–π interactions between the naphthalene ring and the six-membered diimide ring of the central naphthalenediimide moiety, with ring centroid-to-centroid distances of 3.5795 (8) Å (A) and 3.5640 (8) Å (B). In the crystal, C—H...O hydrogen bonds link the molecules into infinite supramolecular chains along thecaxis. These chains are interconnected through C—H...π and offset π–π interactions, generating supramolecular nanotubes which are filled by 1,2-dichlorobenzene molecules.

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 (2S/2R,3S/3R)-3-hydroxy-2-phenylchroman-4-one

2015 ◽  
Vol 71 (2) ◽  
pp. o131-o132 ◽  
Author(s):  
Roumaissa Belguedj ◽  
Sofiane Bouacida ◽  
Hocine Merazig ◽  
Aissa Chibani ◽  
Abdelmalek Bouraiou
Keyword(s):  
Crystal Structure ◽  
Hydrogen Bonds ◽  
Hydroxy Group ◽  
Phenyl Ring ◽  
Minor Component ◽  
Chair Conformation ◽  
Ring System ◽  
Dihedral Angles ◽  
Graph Set ◽  
Title Molecule

In the title molecule, C15H12O3, the C atoms bearing the hydroxy group and the phenyl ring are disordered over two sets of sites with refined occupancies of 0.573 (7) and 0.427 (7). There is also disorder of the phenyl ring but the hydroxy group was refined as ordered. The dihedral angles between the benzene ring of the chromane ring system and the phenyl ring are 89.7 (2)° for the major component of disorder and 72.1 (3)° for the minor component. Both disorder components of the the dihydropyran ring are in a half-chair conformation. In the crystal, molecules are linked by pairs of O—H...O hydrogen bonds, forming inversion dimers with anR22(10) graph-set motif. Weak C—H...π interactions link these dimers into ladders along [001].

scholarly journals Crystal structure of 4-azidomethyl-6-isopropyl-2H-chromen-2-one

2015 ◽  
Vol 71 (4) ◽  
pp. o227-o228 ◽  
Author(s):  
M. S. Krishnamurthy ◽  
Noor Shahina Begum ◽  
D. Shamala ◽  
K. Shivashankar
Keyword(s):  
Crystal Structure ◽  
Hydrogen Bonds ◽  
Ring System ◽  
Maximum Deviation ◽  
Two Dimensional ◽  
Π Interactions ◽  
Dimensional Network ◽  
Title Molecule

In the title molecule, C13H13N3O2, the benzopyran ring system is essentially planar, with a maximum deviation of 0.017 (1) Å. In the crystal, weak C—H...O hydrogen bonds link molecules into ladders along [010]. In addition, π–π interactions between inversion-related molecules, with centroid–centroid distances in the range 3.679 (2)–3.876 (2) Å, complete a two-dimensional network parallel to (001).

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