ABSTRACT
In the title compound, C11H12N2O2·C4H4O4·H2O, the l-tryp-to-phan mol-ecule crystallized as a zwitterion, together with a neutral fumaric acid mol-ecule and a water solvent mol-ecule. In the crystal, the three components are linked by a series of N-Hâ¯O, O-Hâ¯O and C-Hâ¯O hydrogen bonds, forming slabs lying parallel to (001). The slabs are connected by O-Hâ¯O hydrogen bonds, involving inversion-related fumaric acid groups, leading to the formation of a three-dimensional structure.
ABSTRACT
A new 1-(4-Nitrophenyl) pyrrolidine single crystal has grown by slow evaporation solution growth technique. The grown crystal have characterized by single crystal X-ray analysis, and it shows that 1-(4-Nitrophenyl) pyrrolidine crystallizes in the orthorhombic space group Pbca, with cell parameters a=10.3270 (5)Å, b=9.9458 (6)Å, c=18.6934 (12)Å, and Z=8. Powder XRD pattern confirmed that grown crystal posses highly crystalline nature. The functional groups have identified by using FTIR spectral analysis. The absorbance and the luminescence spectra of the title compound have analyzed using UV-Visible and PL spectra. The thermo analytical properties of the crystal have studied using TG/DTA spectrum. The mechanical property of the grown crystal has determined using Vickers micro hardness measurement. The grown features of the crystal have analyzed using etching technique.
Subject(s)
Nitro Compounds/chemistry , Pyrrolidines/chemistry , Crystallization , Hardness , Luminescence , Molecular Conformation , Nitrophenols/chemistry , Organic Chemicals , Photochemistry , Spectrophotometry, Ultraviolet , Spectroscopy, Fourier Transform Infrared , Stress, Mechanical , Temperature , Thermogravimetry , X-Ray DiffractionABSTRACT
In the title salt, C16H18NO(+)·C10H7O3S(-), the substituents attached to the central C=C bond adopt a trans conformation and the benzene and pyridinium rings are nearly coplanar, making a dihedral angle of 6.01â (9)°. The crystal structure features weak C-Hâ¯O hydrogen bonds and C-Hâ¯π inter-actions .
ABSTRACT
The inversion-related mol-ecules of the title compound, C(26)H(21)F(2)NO, associate into closed dimeric subunits via co-operative C-Hâ¯π inter-actions. Two non-classical C-Hâ¯O and one C-Hâ¯N intra-molecular hydrogen bonds are also found in the crystal structure. The piperidin-4-one ring adopts a sofa conforamtion with the 1-benzyl group in the equatorial position, and the equiplanar fluoro-phenyl substituents in the 3- and 5-positions stretched out on either side. The 1-benzyl group is disposed towards the substituent in the 6th position of the piperidin-4-one ring. The 3,5-diene units possess E configurations.
ABSTRACT
In the title compound, C(26)H(23)NO, C-Hâ¯O hydrogen bonds generate a ribbon structure along the a axis. These ribbons further assemble into a one-dimensional sheet parallel to the ac plane via C-Hâ¯π inter-actions. The piperidin-4-one ring adopts a sofa conformation with the 1-benzyl group in the equatorial position, and the 3- and 5-phenyl substituents stretched out on either side. The benzyl-idene units adopt E configurations and the 1-benzyl group is disposed towards the 3- substituent of the piperidin-4-one ring.
ABSTRACT
In the title compound C(32)H(31)NO(3), the all-yloxy groups on either side of the piperidin-4-one ring are conformationally disordered. The contribution of major and minor components of the allyloxy group at the 3rd position of the ring are 0.576â (4) and 0.424â (4), respectively, and those at the 5th position are 0.885â (3) and 0.115â (3), respectively. The six-membered piperidin-4-one ring adopts a sofa conformation with the benzyl group occupying an equatorial position and the olefinic double bonds possessing an E configuration. Flanking phenyl substituents are stretched out on either side of the six-membered ring. π-π inter-actions with a centroid-centroid distance of 3.885â (1)â Å give rise to mol-ecular dimers and short C-Hâ¯π contacts lead to chains along the c axis.
ABSTRACT
In the title compounds, C(13)H(15)N(3)O, (I), and C(13)H(15)N(3)O(2), (II), the dihedral angles between the planes of the phenyl ring and the amide group are 4.1 (1) and 20.7 (1) degrees, respectively. The molecules adopt a fully extended conformation, aided by intramolecular interactions. The molecular structures of (I) and (II) display different crystal packing and hydrogen-bonding networks.
