13C chemical shift tensor in K2Pt(CN)4Br0.3middot; 3H2O

摘要

Single crystal rotation spectra have been obtained for the13C resonance in K2Pt(CN)4Br0.3middot; 3H2O and the13C chemical shift tensor determined. The principal values are (relative to the carboxyl carbon in CH3COOH): sgr;11equals;261plusmn;10 ppm (parallel to Csngbnd;N bond), sgr;22equals; minus;48plusmn;10 ppm (perpendicular to Csngbnd;N bond and Ptsngbnd;Pt chain), and sgr;33equals;minus;10plusmn;5 ppm (parallel to Ptsngbnd;Pt direction). Since the14N quadrupole interaction is of similar size to the14N Zeeman interaction in this material, large effects of the14N quadrupole interaction are observed on the13C spectra.