Man-Hua Wu

Crystal structure of (μ-(bis(diphenylphosphino)ethane dioxide-kO,O′)-bis([2,3-f]-pyrazino-[1,10]phenanthroline-2,3-dicarbonitrile-kN,N′)- bis(dibromido)dicopper(II) — acetonitrile (1:2.5), [Cu2(C26H24P2O2)(C16H6N6)2Br4] · 2.5CH3CN

C63H43.50Br4Cu2N14.50O2P2, monoclinic, C12/c1 (no. 15), a = 31.63(3) Å, b = 9.680(1) Å, c = 24.650(2) Å, + = 119.995(2)°, V = 6536.7 Å, Z = 4, Rgt(F) = 0.056, wRref(F ) = 0.164, T = 298 K.

catena-Poly[[(isoquinoline-κN)(triphenylphospane-κP)copper(I)]-μ-thio­cyanato-κ2N:S]

In the title coordination compound, [Cu(NCS)(C9H7N)(C18H15P)]n, the CuI atom is tetrahedrally coordinated by one N atom from an isoquinoline ligand, one P atom from a triphenylphospane ligand, and one N and one S atom from two thiocyanate anions. The thiocyanide anions bridge the CuI atoms into a chain along [100]. π–π interactions between the pyridine and benzene rings of the isoquinoline ligands connect the chains [centroid-to-centroid distance = 3.722 (3) Å].

5,6-Dimethyl-1,2,4-triazin-3-amine

In the crystal structure of the title compound, C5H8N4, adjacent molecules are connected through N—H⋯N hydrogen bonds, resulting in a zigzag chain along [100]. The amino groups and heterocyclic N atoms are involved in further N—H⋯N hydrogen bonds, forming R 2 2(8) motifs.