Figure 5
P—N—P bond angles derived from the CSD. The dotted lines between P and O atoms indicate that any bond type was allowed in the search of the CSD with ConQuest. Structures in the CSD which have a metal ion coordinated by two of the phosphate O atoms have a more acute P—N—P bond angle, presumably because this brings the two O atoms coordinating the metal closer together. Marvin was used to draw chemical structures (https://www.chemaxon.com). |