An inorganic starch-iodine model: the inorganic-organic hybrid compound {(C_4H_(12)N_2)_2[Cu~II_4](I_2)}_n

摘要

The dark-blue crystal color of {(C_4H_(12)N_2)_2[Cu~II_4](I_2)}_n, its mixture of I~-, I_3~- and linear I_4~(2-) or linear I_5~- polyiodide species in a linear channel arrangement, its channel diameter of ~5.5 A and the helical arrangement of the hydrogen bonded {(C_4H_(12)N_2)_2[Cu~II_4]~+ supramolecular host around the channels agree with the description of the classical, yet structurally elusive, starch-iodine compound.