In the title coumarin derivative, C28H26N2O2, the coumarin unit is approximately planar, with a maximum deviation of 0.048 (3) Å. The central benzene ring is oriented at dihedral angles of 30.15 (14) and 10.51 (11)°, respectively, to the pyridine ring and coumarin ring system. In the crystal, weak C-H⋯O and C-H⋯N hydrogen bonds and weak C-H⋯π inter-actions link the mol-ecules into a three-dimen...

In the title compound, C(14)H(14)N(2)O(5)S(2)·H(2)O, the six-membered ring fused to the β-lactam unit has a twisted conformation. Weak intra-molecular N-H⋯S and C-H⋯O inter-actions occur. Inter-molecular C-H⋯S, N-H⋯O, C-H⋯O and O-H⋯O hydrogen-bonding inter-actions stabilize the crystal structure, forming a three-dimensional network. Weak C-H⋯π inter-actions are also present.

In the title compound, C(24)H(17)NO(4)S, the phenyl ring makes a dihedral angle of 88.12 (5)° with the carbazole unit. The mol-ecular structure is stabilized by weak intra-molecular C-H⋯O inter-actions and the crystal packing exhibits weak inter-molecular C-H⋯O and C-H⋯π inter-actions. Two C atoms of the 2,3-dihydro-1,4-dioxine fragment are disordered over two positions with site-occupancy fact...

In the title compound, C(19)H(23)IN(2)O(2), the cyclo-hexane ring adopts a chair conformation, and the mean plane of the propiolamide unit is approximately perpendicular to the benzene ring [dihedral angle = 88.12 (13)°]. Weak intra-molecular C-H⋯O hydrogen bonding is observed between the carbonyl group and the benzene ring. In the crystal, classical N-H⋯O hydrogen bonds and weak C-H⋯O inter-ac...

In the title compound, C(23)H(20)N(2)O(3)S(2), the phenylsulfonyl ring and phenylthio ring make dihedral angles of 66.5 (7) and 81.2 (6)°, respectively, with the indole unit. In the crystal, mol-ecules are linked into centrosymmetric dimers via pairs of N-H⋯O hydrogen bonds with graph-set motif R(2) (2)(14). The crystal structure is further stabilized by weak inter-molecular C-H⋯O and very weak...

In this paper, we propose a two-stage labeling method of large biomedical datasets through a parallel approach in a single GPU. Diagnostic methods, structures volume measurements, and visualization systems are of major importance for surgery planning, intra-operative imaging and image-guided surgery. In all cases, to provide an automatic and interactive method to label or to tag different struc...

The piperidine ring in the title compound, C(21)H(23)NO(2), is in a slightly distorted chair conformation. The dihedral angle between the two benzene rings is 5.6 (4)°. The dihedral angles between the propenone unit and the benzene and meth-oxy-substituted benzene rings are 5.6 (7) and 10.7 (8)°, respectively. Weak inter-molecular C-H⋯O hydrogen bonds and weak C-H⋯π inter-actions contribute to ...

In either of the two independent mol-ecules within the asymmetric unit of the title compound, [Ni(C(16)H(15)NO(3))(C(3)H(4)N(2))], the Ni(II) atom is coordinated by the two N atoms and two O atoms in a distorted square-planar geometry. The crystal packing is stabilized by strong and weak inter-molecular C-H⋯O hydrogen bonds, as well as weak centroid-centroid π-stacking inter-actions [centroid-c...

In the title compound, C(21)H(20)O(3), the tolyl ring makes a dihedral angle of 31.11 (6)° with the benzene ring of the chromanone unit. The pyrone ring adopts a half-chair conformation. The mol-ecular structure is stabilized by a weak intra-molecular C-H⋯O inter-action and the crystal packing is stabilized by weak inter-molecular C-H⋯O inter-actions and a C-H⋯π inter-action.

This study tests weak and semi-strong form efficiency of the foreign exchange market in Sri Lanka during the recent float using six bilateral exchange rates. Weak-form efficiency is examined using unit root tests while semi-strong form efficiency is tested using co-integration, Granger causality tests and variance decomposition analysis. Results indicate that the Sri Lankan foreign exchange mar...