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].

scholarly journals The crystal structure of 2-[5-(dimethylamino)naphthalene-1-sulfonamido]phenyl 5-(dimethylamino)naphthalene-1-sulfonate

2015 ◽  
Vol 71 (10) ◽  
pp. o721-o722 ◽  
Author(s):  
Kittipong Chainok ◽  
Tanwawan Duangthongyou ◽  
Thawatchai Tuntulani ◽  
Apinya Chuenka ◽  
Boontana Wannalerse
Keyword(s):  
Crystal Structure ◽  
Hydrogen Bond ◽  
Hydrogen Bonds ◽  
Benzene Ring ◽  
Dihedral Angle ◽  
Title Compound ◽  
Ring System ◽  
Naphthalene Ring ◽  
Twofold Axis ◽  
Compound C

The complete molecule of the title compound, C30H29N3O5S2, is generated by a crystallographic twofold axis: the O atom and NH group attached to the central benzene ring are statistically disordered. The dihedral angle between the naphthalene ring system and the central benzene ring is 52.99 (6)°, while the pendant naphthalene ring systems subtend a dihedral angle of 68.17 (4)°. An intramolecular C—H...O hydrogen bond closes anS(6) ring. In the crystal, the molecules are linked by weak C—H...O hydrogen bonds.

scholarly journals 1-{(Z)-[2-Methoxy-5-(trifluoromethyl)anilino]methylidene}naphthalen-2(1H)-one

2013 ◽  
Vol 69 (2) ◽  
pp. o163-o163
Author(s):  
Hakan Kargılı ◽  
Ayşen Alaman Ağar ◽  
Gökhan Alpaslan ◽  
Orhan Büyükgüngör ◽  
Ahmet Erdönmez
Keyword(s):  
Hydrogen Bond ◽  
Hydrogen Bonds ◽  
Benzene Ring ◽  
Dihedral Angle ◽  
Title Compound ◽  
Tautomeric Form ◽  
Ring System ◽  
Trifluoromethyl Group ◽  
Naphthalene Ring ◽  
Compound C

The title compound, C19H14F3NO2, crystallizes in the keto–amine tautomeric form, with a strong intramolecular N—H...O hydrogen bond. The molecule is almost planar; the dihedral angle between the naphthalene ring system and the benzene ring is 4.60 (7)°. In the crystal, molecules are linked into chains along thecaxis by C—H...O hydrogen bonds. The F atoms of the trifluoromethyl group are disordered over two positions with refined site occupancies of 0.668 (9) and 0.332 (9).

7,7a-Dihydroisoindolo[2,1-a]pyrimidin-12-one

2006 ◽  
Vol 62 (7) ◽  
pp. o2929-o2931
Author(s):  
Mustafa Odabaşoğlu ◽  
Orhan Büyükgüngör
Keyword(s):  
Crystal Structure ◽  
Hydrogen Bonds ◽  
Dihedral Angle ◽  
Title Compound ◽  
Ring System ◽  
Naphthalene Ring ◽  
Π Interactions ◽  
Compound C

The crystal structure of the title compound, C18H12N2O, is stabilized by intermolecular N—H...O hydrogen bonds and C—H...π interactions. N—H...O hydrogen bonds generate a C(6) chain. The dihedral angle between the isoindoline group and the naphthalene ring system is 24.96 (12)°.

scholarly journals Crystal structure of 6-amino-4-(3-bromo-4-methoxyphenyl)-3-methyl-2,4-dihydropyrano[2,3-c]pyrazole-5-carbonitrile dimethyl sulfoxide monosolvate

2015 ◽  
Vol 71 (7) ◽  
pp. o453-o454 ◽  
Author(s):  
Sammer Yousuf ◽  
Huma Bano ◽  
Munira Taj Muhammad ◽  
Khalid Mohammed Khan
Keyword(s):  
Crystal Structure ◽  
Hydrogen Bond ◽  
Hydrogen Bonds ◽  
Dimethyl Sulfoxide ◽  
Benzene Ring ◽  
Dihedral Angle ◽  
Pyrazole Ring ◽  
Ring System ◽  
The Mean

In the pyrazole molecule of the title solvate, C15H13BrN4O2·C2H6OS, the dihedral angle between the benzene ring and the mean plane of the dihydropyrano[2,3-c]pyrazole ring system [r.m.s deviation = 0.031 (2) Å] is 86.71 (14)°. In the crystal, the pyrazole molecules are linked by N—H...N hydrogen bonds, forming a layer parallel to (10-1). The pyrazole and dimethyl sulfoxide molecules are connected by an N—H...O hydrogen bond.

scholarly journals 6-Cyanonaphthalen-2-yl 4-hexylbenzoate

2014 ◽  
Vol 70 (5) ◽  
pp. o620-o620 ◽  
Author(s):  
Md. Lutfor Rahman ◽  
H. T. Srinivasa ◽  
Mohd. Yusoff Mashitah ◽  
Huey Chong Kwong ◽  
Ching Kheng Quah
Keyword(s):  
Hydrogen Bonds ◽  
Benzene Ring ◽  
Dihedral Angle ◽  
Title Compound ◽  
Crystal Packing ◽  
Minor Component ◽  
Ring System ◽  
Naphthalene Ring ◽  
Π Interactions ◽  
Compound C

In the title compound, C24H23NO2, a whole molecule is disordered over two sets of sites with occupancies in a ratio of 0.692 (6):0.308 (6). In the major disorder component, the naphthalene ring system forms a dihedral angle of 68.6 (5)° with the benzene ring. The corresponding angle in the minor component is 81.6 (10)°. In the crystal, molecules are linked into chains propagating along theb-axis directionviaweak C—H...O hydrogen bonds. The crystal packing is further consolidated by weak C—H...π interactions.

scholarly journals Crystal structure of (E)-3-(2,4-dimethoxyphenyl)-1-(1-hydroxynaphthalen-2-yl)prop-2-en-1-one

2014 ◽  
Vol 70 (9) ◽  
pp. o1034-o1035 ◽  
Author(s):  
Dongsoo Koh
Keyword(s):  
Crystal Structure ◽  
Hydrogen Bond ◽  
Hydrogen Bonds ◽  
Benzene Ring ◽  
Title Compound ◽  
Ring System ◽  
Naphthalene Ring ◽  
Torsion Angles ◽  
Compound C ◽  
Methoxy Groups

In the title compound, C21H18O4, the C=C bond of the central enone group adopts anEconformation. The dihedral angle formed by the benzene ring and the naphthalene ring system is 6.60 (2)°. The methoxy groups on the benzene ring are essentially coplanar with the ring; the C—C—O—C torsion angles being 1.6 (2) and −177.1 (1)°. The hydroxy group attached to the naphthalene ring is involved in an intramolecular O—H...O hydrogen bond. The relative conformation of the two double bonds in the enone group iss-cisoid. In the crystal, weak C—H...O hydrogen bonds link the molecules into chains propagating along [010].

scholarly journals Crystal structure of 1-ferrocenyl-2-(4-methylbenzoyl)spiro[11H-pyrrolidizine-3,11′-indeno[1,2-b]quinoxaline]

2014 ◽  
Vol 70 (9) ◽  
pp. 124-126 ◽  
Author(s):  
Kuppan Chandralekha ◽  
Deivasigamani Gavaskar ◽  
Adukamparai Rajukrishnan Sureshbabu ◽  
Srinivasakannan Lakshmi
Keyword(s):  
Crystal Structure ◽  
Hydrogen Bond ◽  
Hydrogen Bonds ◽  
Benzene Ring ◽  
Dihedral Angle ◽  
Title Compound ◽  
Maximum Deviation ◽  
Π Interactions ◽  
Twist Conformation

In the title compound, [Fe(C5H5)(C34H28N3O)], the four-fused-rings system of the 11H-indeno[1,2-b]quinoxaline unit is approximately planar [maximum deviation = 0.167 (4) Å] and forms a dihedral angle of 37.25 (6)° with the plane of the benzene ring of the methylbenzoyl group. Both pyrrolidine rings adopt a twist conformation. An intramolecular C—H...O hydrogen bond is observed. In the crystal, molecules are linked by C—H...O hydrogen bonds and weak C—H...π interactions, forming double chains extending parallel to thecaxis.

scholarly journals Crystal structure of 2-(4-fluoro-3-methylphenyl)-5-{[(naphthalen-1-yl)oxy]methyl}-1,3,4-oxadiazole

2015 ◽  
Vol 71 (4) ◽  
pp. o229-o230
Author(s):  
Muniyappan Govindhan ◽  
Kathavarayan Subramanian ◽  
Vijayan Viswanathan ◽  
Devadasan Velmurugan
Keyword(s):  
Crystal Structure ◽  
Hydrogen Bonds ◽  
Benzene Ring ◽  
Title Compound ◽  
Ring System ◽  
Dihedral Angles ◽  
Naphthalene Ring ◽  
Π Interactions ◽  
Compound C ◽  
Planar Conformation

The title compound, C20H15FN2O2, adopts an almost planar conformation. The oxadiazole ring makes dihedral angles of 13.90 (1) and 7.93 (1)° with the naphthalene ring system and benzene ring, respectively, while the naphthalene ring system and benzene ring are inclined to one another by 6.35 (1)°. In the crystal, adjacent molecules are linkedviaC—H...N hydrogen bonds, forming chains propagating along [100]. There are also π–π interactions present [intercentroid distances = 3.5754 (9) and 3.7191 (12) Å], linking the chains to form ribbons lying parallel to (011).

scholarly journals Crystal structure of benzimidazolium salicylate

2015 ◽  
Vol 71 (10) ◽  
pp. o794-o795 ◽  
Author(s):  
M. Amudha ◽  
P. Praveen Kumar ◽  
G. Chakkaravarthi
Keyword(s):  
Crystal Structure ◽  
Hydrogen Bond ◽  
Hydrogen Bonds ◽  
Benzene Ring ◽  
Dihedral Angle ◽  
Three Dimensional ◽  
Dimensional Structure ◽  
Π Interactions ◽  
Molecular Salt ◽  
Ring Motif

In the anion of the title molecular salt, C7H7N2+·C7H5O3−(systematic name: 1H-benzimidazol-3-ium 2-hydroxybenzoate), there is an intramolecular O—H...O hydrogen bond that generates anS(6) ring motif. The CO2group makes a dihedral angle of 5.33 (15)° with its attached ring. In the crystal, the dihedral angle between the benzimidazolium ring and the anion benzene ring is 75.88 (5)°. Two cations bridge two anionsviatwo pairs of N—H...O hydrogen bonds, enclosing anR44(16) ring motif, forming a four-membered centrosymmetric arrangement. These units are linkedviaC—H...O hydrogen bonds, forming chains propagating along theb-axis direction. The chains are linked by C—H...π and π–π interactions [inter-centroid distances = 3.4156 (7) and 3.8196 (8) Å], forming a three-dimensional structure.

scholarly journals Crystal structure of 2-(5-bromo-2-hydroxybenzylidene)-2,3-dihydro-1H-indene-1,3-dione

2015 ◽  
Vol 71 (5) ◽  
pp. o324-o325
Author(s):  
Joel T. Mague ◽  
Shaaban K. Mohamed ◽  
Mehmet Akkurt ◽  
Antar A. Abdelhamid ◽  
Mustafa R. Albayati
Keyword(s):  
Crystal Structure ◽  
Hydrogen Bond ◽  
Hydrogen Bonds ◽  
Benzene Ring ◽  
Dihedral Angle ◽  
Molecular Conformation ◽  
Membered Ring ◽  
Centroid Distance ◽  
Title Molecule ◽  
Adjacent Molecule

The title molecule, C16H9BrO3, deviates slightly from planarity. The benzene ring makes a dihedral angle of 1.02 (9)° with the plane defined by the five-membered ring of the indandione moiety. The latter exhibits a minute twist indicated by the dihedral angle of 0.47 (9)° between the planes of the five- and six-membered rings. An intramolecular C—H...O hydrogen bond between the attached benzene ring with one of the indandione carbonyl O atoms stabilizes the molecular conformation. In the crystal, the molecules form dimers across centres of inversionviapairwise O—H...O hydrogen bonds. The dimers form stacks running parallel to [010] and interact through π–π interactions between the five-membered ring of one molecule and the six-membered rings of the indandione moiety of an adjacent molecule [centroid-to-centroid distance = 3.5454 (10) Å].

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