“…Presented in Tables and are the results of the benchmark calculations of 31 P NMR chemical shifts in a representative series of diverse organophosphorous compounds 1–53 including the most important classes – phosphines, phosphine oxides, phosphine sulfides, phosphorous acids and their derivatives, chlorophosphorous compounds, and phosphorous‐containing heterocycles, in comparison with available experimental data for 1 , 2–4 , and 10 ; 5 and 7–9 , 6 ; 11 ; 12 ; 13 and 16 ; 14 , 52 , and 53 ; 15 ; 17 ; 18 ; 19 ; 20 ; 21 ; 22 ; 23 ; 24 and 25 ; 26 and 27 ; 28 ; 29 ; 30 ; 31 ; 32 ; 33 ; 34 ; 35 and 38 ; 36 ; 37 ; 39 ; 40 ; 41 ; 42 and 43 ; 44 ; 45 ; 46 ; 47 ; 48 ; 49 ; 50 ; and 51 referenced to the 85% water solution of H 3 PO 4 . The last three compounds from this series, 51 , 52 , and 53 , presented a challenge task for this study because of their size of up to 35 atoms (including 20 second‐period elements and a third‐period phosphorous atom).…”