Fig. 3: Structural and spectroscopic studies of 3.

A Molecular structure of P≡N complex 3 (50% probability, 100(2) K; H atoms and toluene omitted). B 31P NMR data (3-15N, 162 MHz, C6D6). C 15N NMR data (3-15N, 81 MHz, C6D6). D IR data for 3-14N (black trace) 3-15N (red trace), and difference spectrum (blue trace). E UV–vis data (2.3 × 10−5 M 3 in THF); inset shows crystals of 3.