Compounds having the structure $\ce{R3P=O <-> R3P^{+}–O^{−}}$ (analogously, phosphine
imides and phosphine
sulfides).
Source: PAC, 1995,
67, 1533. (
Use of immunoassays for the analysis of pesticides and some other organics in water samples (Technical Report)) on page 1537 [
Terms] [
Paper]