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Figure 9
A histogram of N⋯O distances in N—H⋯O hydrogen bonds for phosphoric triamides with a C(O)NHP(O) skeleton (for an N—H⋯O angle more than 110°). The data shown in the first two and last two columns (brown and red, respectively, in the electronic version of the paper) were observed for NC(O)NHP(O)—H⋯O and Namide—H⋯O hydrogen bonds, respectively. Both types of hydrogen bond were observed in the range 2.80–3.00 Å (central four columns, light brown). Only one Namide—H⋯O and one NC(O)NHP(O)—H⋯O hydrogen bond, respectively, are found in the ranges 2.80–2.85 and 2.95–3.00 Å.

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CHEMISTRY
ISSN: 2053-2296
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