Speaker
Eiken Haussühl
Description
We will present the synthesis, crystal structure, thermal expansion, Raman spectra and heat capacity of Ca-guanidinium formate ([C(NH$_2$)$_3$][Ca(HCOO)$_3$]), a new member of the family of metal-organic perovskites. Ca-guanidinium formate shows an extraordinary strong negative thermal expansion between 100 K and 400 K within the crystallographic (001) plane. Perpendicular to this plane, along $\mathbf{a}_3$, the crystal structure expands with increasing temperature very strongly.
Primary authors
Eiken Haussühl
Lkhamsuren Bayarjargal
(DGK)
Dr
Alexandra Friedrich
Mrs
Rita Luchitskaia
Mrs
Julia Büscher
