Die Kristall- und Molekülstruktur von Tetrapyridin-di-(dijodthiocyanato)-kobalt(II), [Co(py)4(NCS · I2)2] / Crystal and Molecular Structure of Tetrapyridine-di-(diiodothiocyanato)-cobalt(II), [Co(py)4(NCS · I2)2]

Co(py)4(NCS · I2)2 crystallizes in the triclinic space group P1̅ with a = 10.556(4) Å, b= 9.630(4) A, c = 8.897(3) Å, α = 89.28(4)°, β = 100.51(4)°, γ = 122.51(3)° and Ζ = 1. The thiocyanate ions act as bidentate ligands with N coordinated to Co(py)42+ and S forming a C. T. bond to I2. The compound can be considered as a Co complex with the “pseudotrihalide anion” [NCS · I2]- as ligand.