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Table 1 31P NMR data of the Li/Cl phosphinidenoid complex 175, ligand-to-phosphinidene complex adducts 3, phosphaguanidine complexes 11 and the carbene-to-phosphinidene complex adduct 12 as well as calculated [GIAO/CPCMtoluene/PBE0/def2-TZVP(ecp)//COSMOtoluene/B3LYP-D3/def2-TZVP] 31P NMR chemical shifts of 3a–d
