When compared with a neutral anion is found when there is a very negative angle and increase the P-O-P if P-O bond adjacent to remove the bond length. Clearly noticed in the trianion
Compared with neutral anion is found that when there is a negative angle POP will increase. And if the PO bond adjacent to the negative charge. Bond is even longer Observed clearly in trianion.
Compared with anion neutral are found when there is a negative P-O-P angle will increase greatly. And if the bond P-O adjacent to the negative charge The bond will be more longer. Clearly noticed in trianion