Magnetic field effects on the luminescence of quasi-one-dimensional crystals Mx[Pt(CN)4]·yH2O

Abstract

An exceptionally large influence of magnetic fields on the E⊥c-polarized emission of Mx[Pt(CN)4]·y H 2O (M=Mg2+, K+, Li+, Ba 2+, Ca2+, Na+) single crystals is reported. When the magnetic field is raised from 0 to 6 T, the emission is blueshifted by 270 cm-1, the intensity increases by a factor 13 and the lifetime is shortened by 3 orders of magnitude. The results are explained within the D′4h-symmetry of a single [Pt(CN)4]2- complex, assuming that the lowest emitting state is an A′1u. © 1982 American Institute of Physics.