Phosphonate
Phosphonates or Phosphonic acids are organic compounds containing one or more C-PO(OH)2 or C-PO(OR)2 (with R=alkyl, aryl) groups. Bisphosphonates were first synthesized in 1897 by Von Baeyer and Hofmann. An example of such a bisphosphonate is HEDP. Since the work of Schwarzenbach in 1949, phosphonic acids are known as effective chelating agents. The introduction of [...]