Isostructural phase transition in the spin crossover compound [Fe(dpp)2(NCS)2] · py
-
Joachim Kusz
Abstract
The spin crossover complex [Fe(dpp)2(NCS)2] · py crystallises in the monoclinic P2/n space group with one guest pyridine molecule per iron complex and undergoes an isostructural phase transition near 100 K on cooling and around 155 K on heating. The space group does not change upon spin transition despite the occurrence of hysteresis with ca. 55 K width, which is clearly seen in the temperature dependence of the lattice parameters. These are highly anisotropic upon spin transition, and surprisingly the unit cell volume reduces only little (0.1%) upon spin transition from high spin to low spin phase. The differences between the high- and low-spin structures are discussed.
© by Oldenbourg Wissenschaftsverlag, Katowice, Germany
Articles in the same Issue
- Hans Georg von Schnering Memorial
- Density functional analysis of the electronic structure of Cs9InO4:Evidence for the presence of a Cs– anion
- Zn13(CrxAl1−x)27 (x = 0.34–0.37): a new intermetallic phase containing icosahedra as building units
- Modeling martensic transformations in crystalline solids: validity and redesign of geometric approaches
- Isostructural phase transition in the spin crossover compound [Fe(dpp)2(NCS)2] · py
- Synthesis and crystal structure of Ba2In – how binary are binary phase diagrams?
- Structure and properties of EuTSb (T = Cu, Pd, Ag, Pt, Au) and YbIrSb
- Crystal formation from glass, crystal structure refinement and thermal behavior of K1−xRbxBSi2O6 boroleucite solid solutions from X-ray powder diffraction data
- (Bi9)4[Bi3Pb9Br47]: Probing the limits of the concept “crystal”
Articles in the same Issue
- Hans Georg von Schnering Memorial
- Density functional analysis of the electronic structure of Cs9InO4:Evidence for the presence of a Cs– anion
- Zn13(CrxAl1−x)27 (x = 0.34–0.37): a new intermetallic phase containing icosahedra as building units
- Modeling martensic transformations in crystalline solids: validity and redesign of geometric approaches
- Isostructural phase transition in the spin crossover compound [Fe(dpp)2(NCS)2] · py
- Synthesis and crystal structure of Ba2In – how binary are binary phase diagrams?
- Structure and properties of EuTSb (T = Cu, Pd, Ag, Pt, Au) and YbIrSb
- Crystal formation from glass, crystal structure refinement and thermal behavior of K1−xRbxBSi2O6 boroleucite solid solutions from X-ray powder diffraction data
- (Bi9)4[Bi3Pb9Br47]: Probing the limits of the concept “crystal”