A previously unreported monoclinic form of Cs 2 PdCl 4 is described. It is found to transform into the reported orthorhombic form on exposure to atmospheric moisture. Infrared spectroscopy and TGA analysis of the previously reported orthorhombic form of Cs 2 PdCl 4 reveals that it is a hydrate with a formula of approximately Cs 2 PdCl 4 :4H 2 O. Water is not present in the monoclinic material. The compound is non-magnetic, which is attributed to a low spin configuration for 4 d 8 Pd 2+ in square planar coordination with Cl. The band gaps of the two forms are found to be 2.13 and 2.21 eV, consistent with their colors. A DFT-calculated electronic structure for the monoclinic form is presented.
|Original language||English (US)|
|Number of pages||6|
|Journal||Solid State Sciences|
|State||Published - Jan 1 2019|
All Science Journal Classification (ASJC) codes
- Materials Science(all)
- Condensed Matter Physics