Hexa­kis­(μ₃-1-methyl­thio­urea-κ³S:S:S)hexa­kis­[iodidocopper(I)]

The title compound, [Cu₆I₆(C₂H₆N₂S)₆], was obtained from the reaction of copper(I) iodide with N-methyl­thio­urea (Metu) in equimolar amounts in acetonitile. The complex consists of two six-membered trinuclear Cu₃S₃I₃ cores that combine through triply bridging Metu, forming a hexa­nuclear core which has -3 symmetry. The Cu^II atom is coordinated by three S atoms of Metu and one iodide ion in a distorted tetra­hedral geometry. The crystal structure is stabilized by N—H...I hydrogen bonds and cuprophilic inter­actions [Cu...Cu = 3.0264 (9) Å].

3-epi-Dammarenediol II 1.075 hydrate: a dammarane triterpene from the bark of Aglaia eximia

The title dammarane tritepene, 3α,20(S)-dihy­droxy­dammar-24-ene, which crystallized out in a hydrated form, C₃₀H₅₂O₂.1.075H₂O, was isolated from the Aglaia eximia bark. The three cyclo­hexane rings adopt chair conformations. The cyclo­pentane has an envelope conformation with the quaternary C at position 14 as the flap atom with the maximum deviation of 0.288 (2) Å. The methyl­heptene side chain is disordered over two positions with 0.505 (1):0.495 (1) site occupancies and is axially attached with an (+)-syn-clinal conformation. The hydroxyl group at position 3 of dammarane is in a different conformation to the corresponding hydroxyl in Dammarenediol II. In the crystal, the dammarane and water mol­ecules are linked by O_Dammarane—H...O_water and O_water—H...O_Dammarane hydrogen bonds into a three-dimensional network.

(2E)-1-[2,3-Dichloro-6-methyl-5-(trifluoro­meth­yl)phen­yl]-2-(1-phenyl­ethyl­idene)hydrazine

The title compound, C₁₆H₁₃Cl₂F₃N₂, exists in an E conformation with respect to the C=N bond [1.2952 (11) Å] and the C—N—N=C torsion angle is 175.65 (8)°. The dihedral angle between the benzene rings is 42.09 (4)°. An intra­molecular C—H...F hydrogen bond generates an S(6) ring. In the crystal, the mol­ecules are linked into [101] chains by C—H...F hydrogen bonds.