Bis(formato-κO)bis­[1-(pyridin-2-yl)ethanone oxime-κ²N,N′]nickel(II)

In the title compound, [Ni(HCOO)₂(C₇H₈N₂O)₂], the Ni atom is six-coordinated by four N atoms from two oxime ligands and by two O atoms from two formate ions in a distorted octa­hedral geometry, with the oxime-N atoms mutually trans. The mol­ecular conformation is stabilized by intra­molecular O—H...O hydrogen bonds.

(5S)-5-Methyl-3-phenyl-2-sulfanyl­idene-1,3-thia­zolidin-4-one

In the title mol­ecule, C₁₀H₉NOS₂, the 2-sulfanyl­idene­thia­zolidin-4-one mean plane and phenyl ring form a dihedral angle of 81.7 (1)°. In the crystal, C—H...π inter­actions link mol­ecules into helical chains in [010].

Bis(4-fluoro­benz­yl)bis­(4-phenyl-5-sulfanyl­idene-4,5-dihydro-1,3,4-thio­diazole-2-thiol­ato)tin(IV)

In the title complex, [Sn(C₇H₆F)₂(C₈H₅N₂S₃)₂], including the weak Sn-N inter­actions, the Sn^IV atom is situated in a distorted trans-octa­hedral geometry, and the equatorial plane is defined by two chelating 4-phenyl-5-sulfanyl­idene-4,5-dihydro-1,3,4-thio­diazole-2-thiol­ate ligands. The apical positions are occupied by two C atoms of 4-fluoro­benzyl groups.

Ethyl 2-diethyl­amino-4-oxo-3,5-diphenyl-4,5-dihydro-3H-pyrrolo­[3,2-d]pyrimidine-7-carboxyl­ate

In the title compound, C₂₅H₂₆N₄O₃, the two fused pyrrolo­[3,2-d]pyrimidine rings form a dihedral angle of 3.7 (2)°. The two substituent phenyl rings are twisted with respect to the pyrrole and pyrimidine rings, making dihedral angles of 57.2 (2) and 69.0 (2)°, respectively. The ethyl and eth­oxy groups are disordered over two positions; the site occupancies are 0.53 (1) and 0.47 (1) for ethyl, and 0.63 (1) and 0.37 (1) for eth­oxy. The crystal packing features C—H...O hydrogen bonds.