@article {4694,
	title = {An iron-based molecular redox switch as a model for iron release from enterobactin via the salicylate binding mode},
	journal = {Inorganic Chemistry},
	volume = {38},
	number = {22},
	year = {1999},
	note = {ISI Document Delivery No.: 255LLTimes Cited: 18Cited Reference Count: 51},
	month = {Nov},
	pages = {5007-5017},
	type = {Article},
	abstract = {The iron release mechanism from protonated ferric enterobactin [Fe-III(enterobactinH(3))] via the salicylate binding mode was probed. For this purpose, a tripodal dodecadentate Ligand incorporating three salicylamide (OO) and three bipyridine (NN) binding sites was synthesized as well as iron complexes thereof. It was shown that a ferric ion coordinates selectively to the hard salicylamides and a ferrous ion binds to the softer bipyridines. Upon reduction or oxidation, the iron translocates reversibly and intramolecularly from one site to the other, thus displaying switchlike properties. Both states were characterized by cyclic voltammetry and visible and Mossbauer spectroscopy. The Mossbauer spectrum for the ferric complex is fully consistent with that obtained by Pecoraro et al. upon lowering the pH of [Fe-III(enterobactin)](3-) solutions (Pecoraro, V. L., et al. J. Am. Chern. Sec. 1983, 105, 4617), thus supporting the alternative iron release mechanism from enterobactin via the salicylate binding mode.},
	keywords = {COORDINATION CHEMISTRY, ESCHERICHIA-COLI, FERRIC ENTEROBACTIN, IRON(III) COORDINATION, LIGAND, METAL-COMPLEXES, SEQUESTERING AGENTS, SYNTHETIC ANALOGS, TRANSLOCATION, TRANSPORT COMPOUNDS},
	isbn = {0020-1669},
	url = {<Go to ISI>://000083670200015},
	author = {Ward, T. R. and Lutz, A. and Parel, S. P. and Ensling, J. and Gutlich, P. and Buglyo, P. and Orvig, Chris}
}
@article {4290,
	title = {Tripodal trisamides based on nicotinic and picolinic acid derivatives},
	journal = {Canadian Journal of Chemistry-Revue Canadienne De Chimie},
	volume = {76},
	number = {4},
	year = {1998},
	note = {ISI Document Delivery No.: 101TQTimes Cited: 6Cited Reference Count: 46},
	month = {Apr},
	pages = {414-425},
	type = {Article},
	abstract = {{A number of polydentate arylamide ligands have been prepared by coupling various acyclic tripodal or linear polyamines with derivatives of nicotinic and picolinic acids. Two synthetic procedures were utilized; tris {[(2-hydroxynicotinyl)carbonyl]-2-aminoethyl} (H3NICTREN) was prepared by Method A, the HOSu/DCC method, and the other arylamides in this study were prepared by Method B, the CDI method. Method A involved the reaction of N-hydroxysuccinimide with 2-hydroxynicotinic acid (in the presence of dicyclohexylcarbodiimide (DCC) as a dehydrative coupling reagent) to form the succinimide ester, followed by reaction with TREN to yield H3NICTREN. Method B involved reaction of a carboxylic acid (2-hydroxynicotinic, 3-hydroxypicolinic, nicotinic, or picolinic acids) with carbonyldiimidazole (CDI) to form the N-acylimidazolide, followed by reaction with the amine (TREN, TAME, spermidine, or TRPN) to yield the desired arylamide. The X-ray structure of 1,1,1-tris{[(3 -hydroxypicolinyl) carbonyl] -2-aminomethyl} ethane (H3PICTBME) was determined; crystals of H(3)PICTAME are monoclinic},
	keywords = {aluminum, arylamide, CHELATE COMPLEXES, COORDINATION CHEMISTRY, DISTANCES, ENTEROBACTIN ANALOGS, FERRIC ENTEROBACTIN, gallium, hydrogen bonding, MICROBIAL IRON TRANSPORT, NEUTRAL WATER, preorganization, STABILITY},
	isbn = {0008-4042},
	url = {<Go to ISI>://000074884600007},
	author = {Hoveyda, H. R. and Karunaratne, V. and Nichols, C. J. and Rettig, S. J. and Stephens, A. K. W. and Orvig, Chris}
}
