Electronic properties of β′-Pd(dmit)2 salts

The electronic states of the anion-based molecular conductors, β'-(Et 2 Me 2 P) [Pd(dmit) 2 ] 2 and β ' .-(Me 4 P)[Pd(dmit) 2 ] 2 were investigated by 13 C-NMR measurements for 13 C-enriched samples. An antiferromagnetic ordering was confirmed at ambient pressure at 15 K and 35 K, respectively. Both salts exhibit quantitatively similar behavior at ambient pressure, in spite of large difference in the properties under pressure.