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. 2021 Sep 12;1248:131481. doi: 10.1016/j.molstruc.2021.131481

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Fig. 6 — The relationship and changes in the binding-energy values of all understudied compounds compared to N-072 and nCaR variables, green star: derivatives of thio phospho guanidine and diphenylphosphinic amide containing the aromatic unsubstitued carbons, blue star: derivatives of thio phospho guanidine containing the aromatic substitued carbons, yellow star: derivatives of diphenyl (guanidine) phosphoramidaite and guanidine diphenylphosphinic amide containing the aromatic unsubstitued carbons, black star: derivatives of bis(guanidine) phenylphosphonic diamide and bis(guanidine)phenylphosphor amididate containing the aromatic unsubstitued carbons, red star: derivatives of bis(guanidine) phenylphosphonic diamide, bis(guanidine)phenylphosphor amididate, diphenyl (guanidine) phosphoramidaite, and guanidine diphenylphosphinic amide containing the aromatic substitued carbons.