scholarly journals 3-(2-Methylamino-1,3-thiazol-4-yl)-2H-chromen-2-one

2012 ◽  
Vol 68 (8) ◽  
pp. o2416-o2417 ◽  
Author(s):  
Samina Khan Yusufzai ◽  
Hasnah Osman ◽  
Aisyah Saad Abdul Rahim ◽  
Suhana Arshad ◽  
Ibrahim Abdul Razak
Keyword(s):  
Crystal Structure ◽  
Hydrogen Bonds ◽  
Dihedral Angle ◽  
Title Compound ◽  
Ring System ◽  
Thiazole Ring ◽  
Maximum Deviation ◽  
Two Dimensional ◽  
Compound C ◽  
Chromene Ring

In the title compound, C13H10N2O2S, the essentially planar 2H-chromene ring system [maximum deviation = 0.0297 (13) Å] and the thiazole ring [maximum deviation = 0.0062 (11) Å] form a dihedral angle of 3.47 (5)°. In the crystal, N—H...N and C—H...O hydrogen bonds link the molecules into two-dimensional networks parallel to thebcplane. C—H...π and π–π [centroid–centroid separation = 3.6796 (8) Å] interactions further stabilize the crystal structure.

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 (7-Chloro-2-oxo-2H-chromen-4-yl)methyl pyrrolidine-1-carbodithioate

2013 ◽  
Vol 69 (11) ◽  
pp. o1684-o1685
Author(s):  
O. Kotresh ◽  
H. C. Devarajegowda ◽  
Arunkumar Shirahatti ◽  
K. Mahesh Kumar ◽  
N. M. Mahabhaleshwaraiah
Keyword(s):  
Hydrogen Bonds ◽  
Dihedral Angle ◽  
Title Compound ◽  
Interplanar Spacing ◽  
Ring System ◽  
Maximum Deviation ◽  
Pyrrolidine Ring ◽  
Compound C ◽  
Centroid Distance ◽  
Chromene Ring

In the title compound, C15H14ClNO2S2, the 2H-chromene ring system is essentially planar, with a maximum deviation of 0.0133 (10) Å. Three C atoms and their attached H atoms of the pyrrolidine ring are disordered [occupany ratio 0.874 (7):0.126 (7)] with both disorder components adopting a twisted conformation. The dihedral angle between the 2H-chromene ring system and the major occupancy component of the pyrrolidine ring is 89.45 (7)°. In the crystal, inversion dimers linked by pairs of C—H...S and C—H...O interactions generateR22(24) andR22(10) loops, respectively. Further C—H...O hydrogen bonds link the dimers into [100] chains. C—H...π interactions also occur and there is very weak π–π stacking [interplanar spacing = 3.650 (5) Å; centroid–centroid distance = 4.095 (7) Å] between inversion-related chlorobenzene rings.

scholarly journals 2-[3-(1,3-Benzothiazol-2-yl)-2,2-dimethylpropyl]-2-methyl-2,3-dihydro-1,3-benzothiazole

2012 ◽  
Vol 68 (8) ◽  
pp. o2349-o2349
Author(s):  
Sammer Yousuf ◽  
Hina Siddiqui ◽  
Rabia Farooq ◽  
M. Iqbal Choudhary
Keyword(s):  
Hydrogen Bonds ◽  
Benzene Ring ◽  
Dihedral Angle ◽  
Title Compound ◽  
Ring System ◽  
Thiazole Ring ◽  
Maximum Deviation ◽  
Envelope Conformation ◽  
Compound C ◽  
Graph Set

In the title compound, C20H22N2S2, the five-membered thiazole ring of the 2-methyl-2,3-dihydro-1,3-benzothiazole unit has an envelope conformation. The dihedral angle between the planar [maximum deviation of 0.014 (1) Å for the S atom] benzothiazole ring system and the benzene ring is 78.37 (12)°. Two intramolecular C—H...S hydrogen bonds are observed, forming rings of graph-set motifS(6). In the crystal, the molecules are consolidated in pairs through N—H...N hydrogen bonds and are arranged parallel to thebaxis.

scholarly journals 2-(Naphthalen-1-yl)-N-(1,3-thiazol-2-yl)acetamide

2012 ◽  
Vol 68 (8) ◽  
pp. o2464-o2464 ◽  
Author(s):  
Hoong-Kun Fun ◽  
Ching Kheng Quah ◽  
Prakash S. Nayak ◽  
B. Narayana ◽  
B. K. Sarojini
Keyword(s):  
Hydrogen Bonds ◽  
Dihedral Angle ◽  
Title Compound ◽  
Ring System ◽  
Thiazole Ring ◽  
Maximum Deviation ◽  
Naphthalene Ring ◽  
Compound C

In the title compound, C15H12N2OS, the naphthalene ring system [maximum deviation = 0.026 (1) Å] forms a dihedral angle of 85.69 (6)° with the thiazole ring [maximum deviation = 0.010 (1) Å]. In the crystal, inversion dimers linked by pairs of N—H...N hydrogen bonds generateR22(8) loops. The dimers are linked by C—H...O hydrogen bonds into chains propagating along [110].

scholarly journals Crystal structure of 2-amino-4-(4-methoxyphenyl)-4H-benzo[g]chromene-3-carbonitrile

2015 ◽  
Vol 71 (12) ◽  
pp. o1017-o1018
Author(s):  
Joel T. Mague ◽  
Shaaban K. Mohamed ◽  
Mehmet Akkurt ◽  
Sabry H. H. Younes ◽  
Mustafa R. Albayati
Keyword(s):  
Crystal Structure ◽  
Hydrogen Bonds ◽  
Dihedral Angle ◽  
Title Compound ◽  
Ring System ◽  
Membered Ring ◽  
Axis Direction ◽  
Compound C ◽  
Naphthalene Fragment ◽  
Chromene Ring

In the title compound, C21H16N2O2, the naphthalene fragment is twisted slightly, as indicated by the dihedral angle of 3.2 (2)° between the two six-membered rings. The pendant 4-methoxyphenyl ring makes a dihedral angle of 86.08 (6)° with the central six-membered ring of the 4H-benzo[g]chromene ring system. In the crystal, molecules are linked by pairs of N—H...N hydrogen bonds, forming inversion dimers which are linked into chains propagating in theb-axis direction by N—H...O hydrogen bonds.

scholarly journals Crystal structure of (7-chloro-2-oxo-2H-chromen-4-yl)methylN,N-dimethylcarbamodithioate

2015 ◽  
Vol 71 (4) ◽  
pp. o263-o264
Author(s):  
H. D. Kavitha ◽  
M. Vinduvahini ◽  
N. M. Mahabhaleshwaraiah ◽  
O. Kotresh ◽  
H. C. Devarajegowda
Keyword(s):  
Crystal Structure ◽  
Hydrogen Bonds ◽  
Title Compound ◽  
Ring System ◽  
Maximum Deviation ◽  
Π Interactions ◽  
Compound C ◽  
Benzene Rings ◽  
Chromene Ring

In the title compound, C13H12Cl N O2S2, the 2H-chromene ring system is almost planar, with a maximum deviation of 0.005 (2) Å. The packing features C—H...S hydrogen bonds and π–π interactions between fused benzene rings of chromene [shortest centroid–centroid distances = 3.6553 (13) and 3.5551 (13) Å].

scholarly journals Crystal structure of (E)-2-[1-(benzo[d][1,3]dioxol-5-yl)ethylidene]-N-methylhydrazine-1-carbothioamide

2015 ◽  
Vol 71 (1) ◽  
pp. o35-o36 ◽  
Author(s):  
Adriano Bof de Oliveira ◽  
Christian Näther ◽  
Inke Jess ◽  
Renan Lira de Farias ◽  
Iasmin Alves Ribeiro
Keyword(s):  
Crystal Structure ◽  
Hydrogen Bonds ◽  
Dihedral Angle ◽  
Title Compound ◽  
Ring System ◽  
Maximum Deviation ◽  
Methyl Groups ◽  
Compound C ◽  
The Mean

In the title compound, C11H13N3O2S, there is a short intramolecular N—H...N contact. The benzo[d][1,3]dioxole ring system is approximately planar (r.m.s. deviation = 0.025 Å) and makes a dihedral angle of 56.83 (6)° with the mean plane of the methylthiosemicarbazone fragment [–N—N—C(=S)—N—C; maximum deviation = 0.1111 (14) Å for the imino N atom]. In the crystal, molecules are linkedviapairs of N—H...S hydrogen bonds, forming inversion dimers. The dimers are connected by N—H...S hydrogen bonds into layers parallel to (100). The H atoms of both methyl groups are disordered over two sets of sites and were refined with occupancy ratios of 0.5:0.5 and 0.75:0.25.

3-(Thiazol-2-ylamino)isobenzofuran-1(3H)-one

2006 ◽  
Vol 62 (7) ◽  
pp. o2866-o2868 ◽  
Author(s):  
Mustafa Odabaşoğlu ◽  
Orhan Büyükgüngör
Keyword(s):  
Crystal Structure ◽  
Hydrogen Bonds ◽  
Dihedral Angle ◽  
Title Compound ◽  
Ring System ◽  
Thiazole Ring ◽  
Intermolecular Hydrogen Bonds ◽  
Π Interactions ◽  
Compound C

The crystal structure of the title compound, C11H8N2O2S, is stabilized by one N—H...N and two C—H...O intermolecular hydrogen bonds and also by three C—H...π interactions. The C—H...O hydrogen bonds generate R 4 4(26) ring motifs and the N—H...N and one of the C—H...O hydrogen bonds generate R 4 3(26) ring motifs. The phthalide ring system of the molecule is almost planar and forms a dihedral angle of 74.84 (9)° with the thiazole ring.

scholarly journals 4-(Octyloxy)phenyl 2-oxo-2H-chromene-3-carboxylate

2013 ◽  
Vol 69 (2) ◽  
pp. o212-o212 ◽  
Author(s):  
B. S. Palakshamurthy ◽  
S. Sreenivasa ◽  
H. T. Srinivasa ◽  
K. R. Roopashree ◽  
H. C. Devarajegowda
Keyword(s):  
Hydrogen Bonds ◽  
Benzene Ring ◽  
Dihedral Angle ◽  
Title Compound ◽  
Ring System ◽  
Maximum Deviation ◽  
Compound C ◽  
Best Fit ◽  
Chromene Ring

In the title compound, C24H26O5, the 2H-chromene ring system is essentially planar, with a maximum deviation of 0.029 (2) Å from the best-fit mean plane incorporating both rings. The dihedral angle between the 2H-chromene ring system and the benzene ring is 21.00 (1)°. In the crystal, pairs of C—H...O hydrogen bonds generate anR22(8) ring pattern. These contacts are bolstered by weaker bifurcated C—H...O hydrogen bonds.

scholarly journals (6-Methoxy-2-oxo-2H-chromen-4-yl)methyl piperidine-1-carbodithioate

2013 ◽  
Vol 69 (11) ◽  
pp. o1683-o1683 ◽  
Author(s):  
K. Mahesh Kumar ◽  
M. Vinduvahini ◽  
N. M. Mahabhaleshwaraiah ◽  
O. Kotresh ◽  
H. C. Devarajegowda
Keyword(s):  
Hydrogen Bonds ◽  
Dihedral Angle ◽  
Title Compound ◽  
Chair Conformation ◽  
Ring System ◽  
Piperidine Ring ◽  
Maximum Deviation ◽  
Compound C ◽  
Centroid Distance ◽  
Chromene Ring

In the title compound, C17H19NO3S2, the maximum deviation of atoms in the 2H-chromene ring system is 0.0097 (14) Å and the piperidine ring adopts a chair conformation. The dihedral angle between the 2H-chromene ring and the piperidine ring (all atoms) is 87.59 (8)°. In the crystal, inversion dimers linked by pairs of C—H...O interactions generateR22(22) loops. Further C—H...O hydrogen bonds link the dimers into [110] chains and weak aromatic π–π stacking [shortest centroid–centroid distance = 3.824 (8) Å] is also observed.

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