@article {5233,
	title = {Lanthanide chemistry with bis{[bis(carboxymethyl)amino]methyl}phosphinate: What does an extra phosphinate group do to EDTA?},
	journal = {Inorganic Chemistry},
	volume = {40},
	number = {15},
	year = {2001},
	note = {ISI Document Delivery No.: 452MHTimes Cited: 9Cited Reference Count: 34},
	month = {Jul},
	pages = {3734-3738},
	type = {Article},
	abstract = {H5XT (bis{[bis(carboxymethyl)amino]methyl}phosphinic acid) is an EDTA(4-)-like ligand containing an extra phosphinate group. [Co-II(XT)](3-), [Co-III(XT)](2-), and a series of [Ln(XT)](2-) complexes have been prepared. The phosphinate group is not coordinated in the Co complexes but is bound in the lanthanide complexes. Solid state and solution behaviors of Ln-XT species are consistent: both monoprotonated and nonprotonated species have been found. Protonation of the metal complex does not lead to dissociation of a carboxylate; rather, the proton distributes around the molecular ion. The pM values of Ln-XT are comparable to those of Ln-EDTA but are higher than those of Ln-TMDTA. The inclusion of a phosphinate eases the selectivity of an EDTA-type ligand for late lanthanides.},
	keywords = {ACID, AGENTS, AMINE PHENOL LIGANDS, ANTIBODY, COMPLEXES, CRYSTAL-STRUCTURES, DERIVATIVES, IONS},
	isbn = {0020-1669},
	url = {<Go to ISI>://000169861800011},
	author = {Xu, L. and Rettig, S. J. and Orvig, Chris}
}
