Bis­{bis­[2,5,8,11,14-penta­oxabicyclo­[13.4.0]nona­deca-1(15),16,18-triene]potassium(I)} bis­(2-thioxo-4,5-dihydro-1,3-dithiole-4,5-dithiol­ato)zinc(II)

The title complex, [K(C₁₄H₂₀O₅)₂]₂[Zn(C₃S₅)₂] or [K(B-15-C-5)₂]₂[Zn(dmit)₂] (B-15-C-5 = benzo15-crown-5 and dmit = 4,5-dimercapto-1,3-dithiole-2-thione), contains two {[K(B-15-C-5)₂]₂}⁺ complex cations and one [Zn(dmit)₂]²⁻ complex anion in the asymmetric unit. The complex has a three-dimensional network structure assembled by inter­molecular S...S and weak C—H...S inter­actions.

3-(4-Fluoro­phen­yl)-2-(4-methyl­phen­oxy)-5,8,9-trimethyl­thieno[3′,2′:5,6]pyrido[4,3-d]pyrimidin-4(3H)-one

In the title mol­ecule, C₂₅H₂₀FN₃O₂S, the central tricyclic system is essentially planar. All bond lengths and angles are within normal ranges. The crystal packing is stabilized by π–π stacking inter­actions and van der Waals forces.