NMR-spektroskopische Untersuchungen an 15N-markierten N-Methyl-imidodiphosphorsäure-Derivaten

NMR Spectroscopic Studies of ¹⁵N Labelled N-Methyl-imidodiphosphoric Acid Derivatives ¹⁵N labelled compounds (EtO)_mCl_2?m(O)P? NMe? P(O)(OEt)_nCl_2?n (m = 0–2, n = 0–2) were prepared as a mixture and investigated by means of ³¹P and ¹⁵N NMR spectroscopy. The chemical shift values δ_P and δ_N, and the coupling constants ¹J_PN and ²J_PP are discussed and interpreted qualitatively by semiempirical quantumchemical calculations (CNDO/2) using POPLE 'S ΔE-model.