CrPO4

Cr(+3)P(+5)O(-2)4

O`^-/P`|O|<\dO^->_(A75,w+)O^-_(A105,N0)Cr^3+

$slope(60)$L(1.2)Cr^3+_(A-15,N0)O`^-_(A15,w-)P<`\dO`^-><`/O`^->=O