Electron paramagnetic resonance of palladium complexes in ammonium chloride single crystals. [Gamma rays]

Journal Article · Sat May 15 00:00:00 EDT 1976 · J. Chem. Phys.; (United States)

OSTI ID:7355366

Sastry, M D

Electron paramagnetic resonance (EPR) study of ..gamma..-irradiated ammonium chloride single crystals doped with Pd(II) revealed the formation of paramagnetic Pd(I) and Pd(III) centers at room temperature. Pd(I) has been found to be in a square planar coordination; its g values and chlorine superhyperfine constants suggest a possible formation of (NH/sub 4/)/sub 2/ PdCl/sub 4/ in NH/sub 4/Cl lattice. Pd(III) with low spin configuration has been found to be in a compressed octahedral coordination. Pd(III) in such a coordination presumably forms owing to the hole trapping of Pd(II) ions situated at the interstitial positions in the ammonium chloride lattice. (AIP)

• Research Organization: Radiochemistry Division, Bhabha Atomic Research Centre, Trombay, Bombay 400 085, India
• OSTI ID: 7355366
• Journal Information: J. Chem. Phys.; (United States), Journal Name: J. Chem. Phys.; (United States) Vol. 64:10; ISSN JCPSA
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360603* -- Materials-- Properties
38 RADIATION CHEMISTRY, RADIOCHEMISTRY, AND NUCLEAR CHEMISTRY
400600 -- Radiation Chemistry
AMMONIUM COMPOUNDS
CHEMICAL RADIATION EFFECTS
CHEMISTRY
CHLORIDES
CHLORINE COMPOUNDS
COMPLEXES
CRYSTAL DEFECTS
CRYSTAL STRUCTURE
CRYSTALS
ELECTROMAGNETIC RADIATION
ELECTRON SPIN RESONANCE
GAMMA RADIATION
HALIDES
HALOGEN COMPOUNDS
INTERSTITIALS
IONIZING RADIATIONS
MAGNETIC RESONANCE
MONOCRYSTALS
PALLADIUM COMPLEXES
POINT DEFECTS
RADIATION CHEMISTRY
RADIATION EFFECTS
RADIATIONS
RESONANCE
TRANSITION ELEMENT COMPLEXES