Metal distribution and disorder in the crystal structure of [NH₂Et₂][Cr₇MF₈(^tBuCO₂)₁₆] wheel molecules for M = Mn, Fe, Co, Ni, Cu, Zn and Cd

The heterometal distribution over the cyclic {Cr₇M} cage molecule is partly ordered over the molecular wheel in the crystal structure of [NH₂Et₂][Cr₇MF₈(^tBuCO₂)₁₆][C₄H₈O₂]_0.5 for the divalent transition metals M = Mn, Fe, Co, Ni, Cu, Zn and Cd.

Temperature- and pressure-dependent structural study of {Fe(pmd)₂[Ag(CN)₂]₂}_n spin-crossover compound by neutron Laue diffraction

The spin-crossover behaviour under applied pressure of {Fe(pmd)₂[Ag(CN)₂]₂}_n (pmd = pyrimidine) has been investigated from the structural point of view by means of neutron Laue diffraction, and the results correlated with those of magnetic measurements to describe the pressure–temperature phase diagram of this compound.