The Layered Coordination Polymer Bi(SCN)₃*½H₂O

Gregor Koch (1) , Michael Ruck (1)

1 Fachrichtung Chemie und Lebensmittelchemie

Yellow crystals of Bi(SCN)₃*½H₂O are obtained by reacting (BiO)₂CO₃ and HSCN in aqueous solution. X-ray diffraction on a single-crystal revealed a triclinic lattice (space group P-1) with a = 843.6(2) pm, b = 920.4 (2) pm, c = 1210.7(2) pm, α = 109.16(3) °, β = 109.06(3) °, γ = 90.22(3) °, V = 832.8(3)*10⁶ pm³, and Z = 4. All thiocyanate anions bind with both ends to different cations. The coordination network expands in plane layers parallel (1 -1 0). The water molecule coordinates one of the two independent Bi³⁺ cations. Dehydration sets in at 100 °C, followed by stepwise thermal decomposition to Bi₂S₃.

Mots clés: Physical Sciences

Gregor Koch, Michael Ruck. The Layered Coordination Polymer Bi(SCN)₃*½H₂O. Journal of Inorganic and General Chemistry / Zeitschrift für anorganische und allgemeine Chemie, 2010, 636 (11), pp.1987. ⟨10.1002/zaac.201000154⟩. ⟨hal-00599869⟩