In the xanthenone system of the title compound, C23H20O4, the pyran ring has a maximum deviation of 0.111 (1) Å from planarity and the outer cyclo-hexene ring exhibits a puckered conformation. The three methyl-ene C atoms of the cyclo-hexene ring bonded to the pyran unit are disordered over two sets of sites [occupancies = 0.570 (3) and 0.430 (3)]. In the crystal, mol-ecules are linked by C-H⋯O...

In the title compound, C(10)H(12)N(2)S, the thio-phene ring is essentially planar (r.m.s. deviation = 0.0290 Å). The two C atoms of the cyclo-hexene ring (at positions 6 and 7) are disordered over two sets of sites in a 0.810 (5):0.190 (5) ratio. The cyclo-hexene rings in both the major and minor occupancy conformers adopt a half-chair conformation. In the crystal, there are two types of N-H⋯N ...

Five of the atoms of the six-membered cyclo-hexene ring of the title compound, C(17)H(20)O(2), are essentially coplanar (r.m.s. deviation = 0.006 Å), with the sixth (the dimethyl-methyl C atom) deviating from the mean plane of the five atoms by 0.610 (2) Å. This plane is nearly perpendicular to the cinnamyl portion, the two planes being aligned at 85.1 (1)°. Two mol-ecules are linked by an O-H⋯...

In the title compound, C(17)H(17)NO(3)S, the cyclohexene ring is essentially planar, with a maximum deviation of 0.006 (1) Å. The cyclo-hexene ring adopts a half-chair conformation. The dihedral angle between the thio-phene and benzene rings is 29.7 (1)°. The mol-ecular structure exhibits intra-molecular O-H⋯O, O-H⋯N and C-H⋯S hydrogen bonds, which generate one S(5) and two S(6) motifs. There i...

The surface properties of coal, interactions with gaseous and vapour media, knowledge the pore structure are important in terms preparation, use, utilisation coal. This publication combines new unpublished data analyses included earlier publications by research team to expand systematise information on sorption water vapour, methanol saturated unsaturated hydrocarbons hexane, 1-hexene, heptane,...

Lightly branched, hyperbranched and cross-linked polymers with clickable sites were synthesized via a modified version of self-condensing photoinitiated copolymerization of methyl acrylate (MA) with propargyl acrylate (PA). The method is based on the use of a PA monomer containing two polymerizable groups, namely acrylate and propargyl groups with different reactivities in photoinitiated free r...

A catalyst for the oligomerization of 1-hexene, generated by the activation of a benzimidazolylidene zirconium dibenzyl complex, switches to a polymerization catalyst on addition of a trialkylphosphine.

In the title compound, C(15)H(11)N(3), the cyclo-hexene ring adopts a sofa conformation. An intra-molecular N-H⋯N hydrogen bond generates an S(7) ring motif. In the crystal, mol-ecules are linked by inter-molecular N-H⋯N, C-H⋯N and C-H⋯π inter-actions into a three-dimensional network.