TY - JOUR
T1 - Bifunctional phosphoric acid-phosphine oxide extractants
T2 - Synthesis and complexes with uranium-(IV) and -(VI) and iron(III)
AU - Arad-Yellin, Rina
AU - Zangen, Mendel
AU - Gottlieb, Hugo
AU - Warshawsky, Abraham
PY - 1990
Y1 - 1990
N2 - A bifunctional extractant (HL) carrying phosphine oxide and phosphoric acid complexing centres has been synthesized by the cyclic enediol phosphate method, using a two-step reaction with dihexyl(hydroxymethyl)phosphine oxide and 2-ethylhexanol. The bifunctional complexant complexes both UIV and UVI. The complexation process, as shown by 31P n.m.r. spectroscopy, involves both the R3P=O and (R′O)2PO2H centres (R=C6H13, R′=C8H17). The compound HL exists as hydrogen-bonded associates in the organic (hexane) phase. Involvement of anions in the complex structures is evident for UVI(NO3-), UIV(Cl-, NO3-, or HPO42-), and Fe(Cl- or SCN-).
AB - A bifunctional extractant (HL) carrying phosphine oxide and phosphoric acid complexing centres has been synthesized by the cyclic enediol phosphate method, using a two-step reaction with dihexyl(hydroxymethyl)phosphine oxide and 2-ethylhexanol. The bifunctional complexant complexes both UIV and UVI. The complexation process, as shown by 31P n.m.r. spectroscopy, involves both the R3P=O and (R′O)2PO2H centres (R=C6H13, R′=C8H17). The compound HL exists as hydrogen-bonded associates in the organic (hexane) phase. Involvement of anions in the complex structures is evident for UVI(NO3-), UIV(Cl-, NO3-, or HPO42-), and Fe(Cl- or SCN-).
UR - http://www.scopus.com/inward/record.url?scp=37049080984&partnerID=8YFLogxK
U2 - 10.1039/dt9900002081
DO - 10.1039/dt9900002081
M3 - ???researchoutput.researchoutputtypes.contributiontojournal.article???
AN - SCOPUS:37049080984
SN - 1472-7773
SP - 2081
EP - 2088
JO - Journal of the Chemical Society. Dalton Transactions
JF - Journal of the Chemical Society. Dalton Transactions
IS - 7
ER -