Synthesis and Characterization of Mixed III-V and II-VI Semiconductor MonomersIncluded in the Borate Sodalite Analogue

摘要

The synthesis of the solid solution series Ga(x)Zn(8-x)(BO2)12P(x)Se(2-x) (x = 0,0.5, 1, 2) is reported and the local and average long-range structures are discussed based on x-ray diffraction data, UV/visible spectroscopic measurements and a variety of field-dependent static and magic angle spinning and solid state NMR experiments. Inclusion of GaP within the borate sodalite analogue results in the formation of an isolated 31p-69,71 Ga dipolar spin pair that exhibits resolved J-coupling in the 31P MAS NMR spectra. Theoretical analysis reveals that there are four different intracage structures distributed in small domains throughout the crystallographically single phase materials and these are identified as (Zn4Se)(6+), (GaZn3 P)(6+), (Zn4 P)(5+) and, by inference, (Ga2Zn2P)(7+).