In the title compound, C(12)H(16)O(3), a fully extened hexyl carbon chain is attached to a benzene ring; the mean planes formed by the atoms in the benzene ring and the hexa-none are inclined at an angle 8.5 (2)° with respect to each other. In the crystal, inter-molecular O-H⋯O hydrogen bonds join the mol-ecules into an infinite sheet.

We present a new instability observed in rapid granular flows down rough inclined planes. For high inclinations and flow rates, the free surface of the flow experiences a regular deformation in the transverse direction. Measurements of the surface velocities imply that this instability is associated with the formation of longitudinal vortices in the granular flow. From the experimental observat...

In the title compound, C(25)H(17)NO(3)S(3), the mean planes of the thieno[2,3-b]carbazole and phenyl rings are inclined at an angle of 63.6 (1)°. The mol-ecular structure features short intra-molecular C-H⋯O contacts and the crystal packing exhibits weak inter-molecular C-H⋯S and π-π inter-actions [centroid-to-centroid distances 3.734 (2)-3.888 (2) Å].

The title compound, C(18)H(16)ClN(3)S, adopts an extended mol-ecular structure. The thia-zole ring is inclined by 9.2 (1) and 15.3 (1)° with respect to the chloro-phenyl and 4-(dimethyl-amino)-phenyl rings, respectively, while the benzene ring planes make an angle of 19.0 (1)°. A weak inter-molecular C-H⋯π contact is observed in the crystal structure.

In the title compound, C(11)H(15)NO(3), the mean planes of the carboxamide and isopropyl groups are inclined at 109.9 (1) and 128.7 (2)°, respectively, to the mean plane of the phen-oxy group. In the crystal structure, mol-ecules are stacked along the b axis, without any π-π inter-actions. The stacked columns are linked together by inter-molecular N-H⋯O hydrogen bonds, with an N⋯O distance of 2...

In the title compound, C(19)H(17)NO(2), the piperidine ring adopts a chair conformation. The mean planes of the piperidine ring and the anthracene ring system are inclined at a dihedral angle of 38.7 (1)°. In the crystal, adjacent mol-ecules are linked through C-H⋯π and π-π [centroid-centroid distance = 3.782 (1) Å] inter-actions, forming a layer parallel to the bc plane.

In the title mol-ecule, C9H6BrNS, the planes of the 2-bromo-1,3-thia-zole and phenyl rings are inclined at 7.45 (10)° with respect to each other. In the crystal, mol-ecules related by a centre of symmetry are held together via π-π inter-actions, with a short distance of 3.815 (2) Å between the centroids of the five- and six-membered rings. The crystal packing exhibits short inter-molecular S⋯Br...

In the crystal structure of the title compound, C(16)H(13)NO(2), adjacent mol-ecules are linked through C-H⋯π and π-π [centroid-centroid distances = 3.844 (2) Å] contacts. The anthracene ring system and dimethyl-amino group are oriented at a dihedral angle of 38.4 (1)°. In the crystal, the mean planes of adjacent anthracene units are inclined at angles of 59.3 (1), 75.7 (1) and 76.0 (1)°.

In the title compound, C23H22N2O4S, the pyrrolidine ring has an envelope conformation with the spiro C atom, shared with the indoline ring system, as the flap. The mean planes of the benzo-thio-phene and indoline ring systems are inclined to the mean plane of the pyrrolidine ring by 88.81 (8) and 79.48 (8)°, respectively, and to each other by 68.12 (5)°. In the crystal, mol-ecules are linked vi...

Ultraviolet radiation spectral irradiance was measured at different altitudes on horizontal and tilted planes in different azimuth directions on cloudless days in Austria, in March 2010, within the Impact of Climatic and Environmental factors on Personal Ultraviolet Radiation Exposure project framework. The presented results demonstrate variations of the UVB, UVA and biologically effective spec...