scholarly journals Methyl 4′-(3-bromophenyl)-3′-(2,5-dimethylbenzyl)-1′-methyl-2-oxospiro[indoline-3,2′-pyrrolidine]-3′-carboxylate

2014 ◽  
Vol 70 (3) ◽  
pp. o299-o300 ◽  
Author(s):  
S. Karthikeyan ◽  
K. Sethusankar ◽  
Anthonisamy Devaraj ◽  
Manickam Bakthadoss
Keyword(s):  
Molecular Structure ◽  
Hydrogen Bond ◽  
Hydrogen Bonds ◽  
Ring System ◽  
Two Dimensional ◽  
Indole Ring ◽  
Pyrrolidine Ring ◽  
Compound C ◽  
The Mean ◽  
Ring Motif

In the title compound, C29H29BrN2O3, the indole ring system is essentially planar (r.m.s. deviation = 0.079 Å) and makes a dihedral angle of 85.23 (10)° with the mean plane of the 4-methylpyrrolidine ring. This ring adopts an envelope conformation with the N atom at the flap. The pyrrolidine ring of the indole ring system adopts a twisted conformation on the C—C(=O) bond. The molecular structure is stabilized by an intramolecular C—H...O hydrogen bond, which generates anS(6) ring motif. In the crystal, molecules are linkedviapairs of C—H...O hydrogen bonds, forming inversion dimers with anR22(14) ring motif. These dimers are further linked by N—H...O and C—H...O hydrogen bonds, forming two-dimensional networks lying parallel to (10-1).

scholarly journals 5-(2-Hydroxybenzoyl)-2-(1H-indol-3-yl)pyridine-3-carbonitrile

IUCrData ◽  
2016 ◽  
Vol 1 (4) ◽  
Author(s):  
K. S. Ezhilarasi ◽  
Nataraj Poomathi ◽  
P. T. Perumal ◽  
R. Vasanthi ◽  
G. Usha
Keyword(s):  
Molecular Structure ◽  
Hydrogen Bond ◽  
Nitrogen Atom ◽  
Hydrogen Bonds ◽  
Pyridine Ring ◽  
Ring System ◽  
Supramolecular Network ◽  
Two Dimensional ◽  
Indole Ring ◽  
Compound C

In the title compound, C21H13N3O2, the indole and pyridine rings are planar. The pyridine ring is in an antiperiplanar (−ap) orientation with the indole ring system and an antiperiplanar (+ap) orientation with the hydroxyphenyl ring. An intramolecular O—H...O hydrogen bond stabilizes the molecular structure. In the crystal, N—H...N hydrogen bonds involving the indole NH group and the cyanide nitrogen atom lead to the formation of a two-dimensional supramolecular network lying parallel to (011).

scholarly journals Methyl 3′-benzyl-4′-(2,4-dichlorophenyl)-1′-methyl-2-oxo-1-propylspiro[indoline-3,2′-pyrrolidine]-3′-carboxylate

2014 ◽  
Vol 70 (3) ◽  
pp. o272-o272
Author(s):  
S. Karthikeyan ◽  
K. Sethusankar ◽  
Anthonisamy Devaraj ◽  
Manickam Bakthadoss
Keyword(s):  
Molecular Structure ◽  
Pyrrole Ring ◽  
Ring System ◽  
Maximum Deviation ◽  
Indole Ring ◽  
Pyrrolidine Ring ◽  
Compound C ◽  
Centroid Distance ◽  
The Mean ◽  
Ring Motif

In the title compound, C30H30Cl2N2O3, the indole ring system is roughly planar, with a maximum deviation of 0.1039 (18) Å for the carbonyl C atom, and makes a dihedral angle of 86.61 (9)° with the mean plane of the pyrrolidine ring. This spiro pyrrolidine ring adopts an envelope conformation with the N atom at the flap position. The pyrrole ring of the indole ring system adopts a twisted conformation on the C—C(=O) bond. The molecular structure is stabilized by an intramolecular C—H...O hydrogen bond, which generates anS(6) ring motif, and a π–π interaction [centroid–centroid distance = 3.6577 (12) Å] involving the 2,4-dichlorophenyl ring and the benzyl ring. In the crystal, molecules are linkedviaC—H...O hydrogen bonds, formingC(9) chains running parallel to [10-1].

scholarly journals (Z)-3-(1-Chloroprop-1-enyl)-2-methyl-1-phenylsulfonyl-1H-indole

2013 ◽  
Vol 69 (12) ◽  
pp. o1781-o1781 ◽  
Author(s):  
M. Umadevi ◽  
V. Saravanan ◽  
R. Yamuna ◽  
A. K. Mohanakrishnan ◽  
G. Chakkaravarthi
Keyword(s):  
Molecular Structure ◽  
Hydrogen Bond ◽  
Hydrogen Bonds ◽  
Phenyl Ring ◽  
Three Dimensional ◽  
Ring System ◽  
Indole Ring ◽  
Compound C ◽  
Dimensional Network ◽  
A Chain

In the title compound, C18H16ClNO2S, the indole ring system forms a dihedral angle of 75.07 (8)° with the phenyl ring. The molecular structure is stabilized by a weak intramolecular C—H...O hydrogen bond. In the crystal, molecules are linked by weak C—H...O hydrogen bonds, forming a chain along [10-1]. C—H...π interactions are also observed, leading to a three-dimensional network.

scholarly journals 2-(4-Bromophenyl)-2-oxoethyl anthracene-9-carboxylate

2012 ◽  
Vol 68 (6) ◽  
pp. o1876-o1876 ◽  
Author(s):  
Hoong-Kun Fun ◽  
Safra Izuani Jama Asik ◽  
B. Garudachari ◽  
Arun M. Isloor ◽  
M. N Satyanarayan
Keyword(s):  
Hydrogen Bond ◽  
Ring System ◽  
Maximum Deviation ◽  
Stacking Interactions ◽  
Two Dimensional ◽  
Compound C ◽  
Dimensional Network ◽  
Benzene Rings ◽  
The Mean ◽  
Ring Motif

In the title compound, C23H15BrO3, the anthracene ring system is essentially planar [maximum deviation = 0.29 (2) Å] and makes a dihedral angle of 5.74 (8)° with the mean plane of the bromo-substituted benzene ring. An intramolecular C—H...O hydrogen bond generates an S(9) ring motif. In the crystal, molecules are linked by C—H...O interactions, forming a two-dimensional network parallel to the ac plane. π–π stacking interactions are observed between benzene rings [centroid–centroid distances = 3.5949 (14) and 3.5960 (13) Å].

scholarly journals Crystal structure of ethyl 2′′,3-dioxo-7′,7a'-dihydro-1′H,3H,3′H-dispiro[benzo[b]thiophene-2,6′-pyrrolo[1,2-c]thiazole-5′,3′′-indoline]-7′-carboxylate

2015 ◽  
Vol 71 (3) ◽  
pp. o148-o149
Author(s):  
M. P. Savithri ◽  
M. Suresh ◽  
R. Raghunathan ◽  
R. Raja ◽  
A. SubbiahPandi
Keyword(s):  
Crystal Structure ◽  
Hydrogen Bonds ◽  
Three Dimensional ◽  
Ring System ◽  
Dimensional Structure ◽  
Thiazole Ring ◽  
Pyrrolidine Ring ◽  
Compound C ◽  
The Mean ◽  
Ring Motif

In the title compound, C23H20N2O4S2, the central pyrrolidine ring adopts an envelope conformation with the spiro C atom, shared with the benzothiophene ring system, as the flap. The thiazole ring has a twisted conformation on the S—C bond, where the C atom is that closest to methine C atom. The mean planes of the benzothiophene and indoline ring systems are inclined to the mean plane of the central pyrrolidine ring by 82.75 (8) and 80.03 (8)°, respectively, and to each other by 61.49 (6)°. In the crystal, molecules are linkedviapairs of N—H...O hydrogen bonds, forming inversion dimers with anR22(8) ring motif. The dimers are linkedviaC—H...O and C—H...N hydrogen bonds, forming a three-dimensional structure. The ethoxycarbonyl group is disordered over two orientations, with an occupancy ratio of 0.717 (12):0.283 (12).

scholarly journals Methyl 3′-benzyl-4′-(2,4-dichlorophenyl)-1′-methyl-2-oxospiro[indoline-3,2′-pyrrolidine]-3′-carboxylate

2014 ◽  
Vol 70 (3) ◽  
pp. o335-o335 ◽  
Author(s):  
S. Karthikeyan ◽  
P. Narayanan ◽  
K. Sethusankar ◽  
Anthonisamy Devaraj ◽  
Manickam Bakthadoss
Keyword(s):  
Molecular Structure ◽  
Hydrogen Bonds ◽  
Title Compound ◽  
Ring System ◽  
Maximum Deviation ◽  
Indole Ring ◽  
Compound C ◽  
Centroid Distance ◽  
Benzene Rings ◽  
The Mean

In the title compound, C27H24Cl2N2O3, the indole ring system is essentially planar, with a maximum deviation of 0.082 (2) Å for the carbonyl C atom. It makes a dihedral angle of 88.53 (6)° with the mean plane of the 4-methylpyrrolidine ring, which adopts an envelope conformation with the N atom at the flap position. The molecular structure is stabilized by intramolecular C—H...O hydrogen bonds, which generateS(6) andS(7) ring motifs, and an intramolecular π–π interaction involving the benzyl and dichloro-substituted benzene rings [centroid–centroid distance = 3.6291 (11) Å]. In the crystal, molecules are linkedviaN—H...O hydrogen bonds, formingC(7) chains running parallel to [10-1].

scholarly journals Ethyl (4-{[(diethylcarbamothioyl)sulfanyl]methyl}-2-oxo-2H-chromen-7-yl)carbamate

2014 ◽  
Vol 70 (2) ◽  
pp. o219-o220
Author(s):  
K. R. Roopashree ◽  
K. Mahesh Kumar ◽  
B. R. Anitha ◽  
A. J. Ravi ◽  
H. C. Devarajegowda
Keyword(s):  
Hydrogen Bond ◽  
Hydrogen Bonds ◽  
Molecular Conformation ◽  
Ring System ◽  
Two Dimensional ◽  
Aromatic Rings ◽  
Compound C ◽  
Centroid Distance ◽  
Ring Motif ◽  
Chromene Ring

In the title compound, C18H22N2O4S2, the 2H-chromene ring system is essentially planar (r.m.s. deviation = 0.012 Å). The molecular conformation is stabilized by a C—H...O hydrogen bond. In the crystal, N—H...S and C—H...O hydrogen bonds occur, the former enclosing anR22(22) ring motif, and lead to the formation of a two-dimensional slab-like network lying parallel to (10-1). π–π interactions are observed between inversion-related aromatic rings [shortest centroid–centroid distance = 3.6300 (11) Å].

N-(7-Dimethoxymethyl-4-oxo-3,4-dihydropteridin-2-yl)-2,2-dimethylpropionamide monohydrate

2007 ◽  
Vol 63 (11) ◽  
pp. o4249-o4250
Author(s):  
Hoong-Kun Fun ◽  
Shyamaprosad Goswami ◽  
Annada C. Maity ◽  
Sibaprasad Maity ◽  
Suchada Chantrapromma
Keyword(s):  
Crystal Structure ◽  
Hydrogen Bonding ◽  
Hydrogen Bonds ◽  
Ring System ◽  
Water Molecules ◽  
Two Dimensional ◽  
Compound C ◽  
The Mean ◽  
Intramolecular Hydrogen ◽  
Ring Motif

In the title compound, C14H19N5O4·H2O, the 3,4-dihydropteridine ring system deviates sigificantly from planarity, the dihedral angle between the mean planes of the two rings being 3.93 (9)°. Intramolecular N—H...O hydrogen bonding generates an S(6) ring motif. The water molecule forms O—H...O and O—H...N intramolecular hydrogen bonds with the substituted pteridine molecule. In the crystal structure, the substituted pteridine molecules are linked by N—H...N hydrogen bonds into chains running along the c direction. These chains are further connected to the water molecules by N—H...O, O—H...O and O—H...N hydrogen bonds to form two-dimensional networks parallel to the bc plane. The crystal structure is stabilized by intra- and intermolecular N—H...O, N—H...N, O—H...O and O—H...N hydrogen bonds, together with weak C—H...O and C—H...N intra- and intermolecular interactions. C—H...π interactions are also observed.

scholarly journals Pyrrolidinium-2-carboxylate–4-nitrophenol (1/2)

2013 ◽  
Vol 69 (11) ◽  
pp. o1723-o1723 ◽  
Author(s):  
Narayanan Swarna Sowmya ◽  
Yechuri Vidyalakshmi ◽  
Sadasivam Sampathkrishnan ◽  
Thothadri Srinivasan ◽  
Devadasan Velmurugan
Keyword(s):  
Hydrogen Bond ◽  
Hydrogen Bonds ◽  
Title Compound ◽  
Dihedral Angles ◽  
Two Dimensional ◽  
Pyrrolidine Ring ◽  
Compound C ◽  
The Mean

In the title compound, C5H9NO2·2C6H5NO3, the pyrrolidine ring of the pyrrolidinium-2-carboxylate zwitterion adopts a twisted conformation on the –CH2—CH2– bond adjacent to the N atom. The mean plane of this pyrrolidine ring forms dihedral angles of 25.3 (3) and 32.1 (3)° with the two nitrophenol rings. An intramolecular N—H...O hydrogen bond occurs in the pyrrolidinium-2-carboxylate molecule. In the crystal, molecules are linkedviaO—H...O and N—H...O hydrogen bonds, enclosingR32(8) ring motifs, forming chains running parallel to theaaxis. These chains are further cross-linked by O—H...O and C—H...O hydrogen bonds, forming undulating two-dimensional networks lying parallel to (001).

scholarly journals Crystal structure of ethyl 5′′-fluoro-2′′,3-dioxo-6′,7′,8′,8a'-tetrahydro-2′H,3H,5′H-dispiro[benzo[b]thiophene-2,1′-indolizine-3′,3′′-indoline]-2′-carboxylate

2015 ◽  
Vol 71 (3) ◽  
pp. o156-o157 ◽  
Author(s):  
R. Raja ◽  
J. Govindaraj ◽  
M. Suresh ◽  
R. Raghunathan ◽  
A. SubbiahPandi
Keyword(s):  
Crystal Structure ◽  
Hydrogen Bonds ◽  
Chair Conformation ◽  
Ring System ◽  
Membered Ring ◽  
Piperidine Ring ◽  
Pyrrolidine Ring ◽  
Compound C ◽  
The Mean ◽  
Ring Motif

In the title compound, C25H23FN2O4S, the fused piperidine ring of the octahydroindolizine ring system adopts a chair conformation and the five-membered ring has a twisted conformation on the N—C(spiro) bond. The mean planes of the benzothiophene and indoline ring systems are inclined to the mean plane of the pyrrolidine ring by 83.1 (1) and 84.9 (1)°, respectively, and to each other by 29.37 (17)°. In the crystal, molecules are linkedviapairs of N—H...O hydrogen bonds, forming inversion dimers with anR22(8) ring motif. The dimers are linkedviaC—H...O hydrogen bonds, forming slabs lying parallel to (100). The packing between the slabs features a short [2.734 (2) Å] F...F contact.

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