S. Kathiravan

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Magnetic resonance imaging is a noninvasive technique that has been developed for its excellent depiction of soft tissue contrasts. Instruments capable of ultra-high field strengths, ≥7 Tesla, were recently engineered and have resulted in higher signal-to-noise and higher resolution images. This paper presents various subsystems of the MR imaging systems(More)
In the title indole derivative, C20H18ClNO2, the chloro-phenyl ring is almost perpendicular to the indole moiety, making a dihedral angle of 87.6 (1)°. The mol-ecular packing is stabilized by C-H⋯π inter-actions, which form a C(9) chain motif along [10-1]. In addition, there are weak π-π inter-actions [centroid-centroid distance 3.851 (1) Å] between the(More)
In the title indole derivative, C22H21NO4, the dihedral angle between the benzene and pyrrole rings of indole moiety is 1.8 (1)°. The plane of the 4-meth-oxy-phenyl ring is oriented with a dihedral angle of 60.7 (1)° with respect to the plane of the indole moiety. The mol-ecular packing is stabilized by C-H⋯O hydrogen bonds which form a V-shaped chain(More)
The title ester, C27H30N2O3, crystallizes with two independent mol-ecules in the asymmetric unit whose geometrical features are similar. In each mol-ecule, the pyrrolidine ring adopts an envelope conformation, with the fused C atom shared with the piperidine ring as the flap, and the piperidine ring adopts a chair conformation. In the crystal, C-H⋯π(More)
In the title compound, C(25)H(25)NO(4), the pyrrolidine ring exhibits an envelope conformation and the tetra-hydro-pyran ring exhibits a half-chair conformation. The crystal structure is stabilized by inter-molecular C-H⋯π inter-actions.
In the title compound, C(25)H(22)ClNO(3)S, both the pyrrolidinyl and thia-zolyl rings adopt envelope conformations whereas the dihydro-pyran ring adopts a half-chair conformation. The chloro-phenyl and naphthalenyl ring systems are oriented at a dihedral angle of 59.7 (1)°. The crystal packing is stabilized by an intra-molecular C-H⋯N hydrogen bond and weak(More)