@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 {4297,
	title = {Intramolecular protonation and other mechanisms for substitution reactions of hydrido(thiolato)- and di(thiolato)-ruthenium(II) phosphine complexes},
	journal = {Inorganica Chimica Acta},
	volume = {280},
	number = {1-2},
	year = {1998},
	note = {ISI Document Delivery No.: 124VGTimes Cited: 3Cited Reference Count: 28},
	month = {Oct},
	pages = {75-86},
	type = {Article},
	abstract = {Reactions of cct-RuH(SR) (CO)(2)(PPh3)(2) (1) (cct = cis, cis, traits) with R{\textquoteright}SH provide cct-RuH(SR{\textquoteright}) (CO)(2)(PPh3)(2) (R = alkyl, aryl); based on described kinetic data, the proposed mechanism involves PPh3 loss, coordination of R{\textquoteright}SH, intramolecular protonation of RS- by R{\textquoteright}SH, and RSH elimination. The intramolecular protonation step circumvents a potentially slow RSH reductive elimination step. A similar mechanism is proposed for the thiol exchange reactions of cct-Ru(SR)(2)(CO)(2)(PPh3)(2) (2). A corresponding dissociative mechanism is also proposed for the reaction of 1 with P(p-tolyl)(3), which gives cct-RuH(SR) (CO)(2)(PPh3) (P(p-tolyl)(3)) and cct-RuH(SR) (CO)(2)(P(p-tolyl)(3))(2). Other reactions described include the reactions of 1 with H-2, CO, HCl and PPh3, and the reactions of 2 with P(p-tolyl)(3) and H-2. Exposure to light causes 2 to dimerize in solution. (C) 1998 Elsevier Science S.A. All rights reserved.},
	keywords = {ACTIVE-SITES, EXCHANGE, hydride complexes, IRON-SULFUR PROTEINS, kinetics and mechanism, LIGANDS, MOLECULAR-HYDROGEN, nitrogenase, ruthenium complexes, SYNTHETIC ANALOGS, TETRANUCLEAR CLUSTERS <FE4S4(SR)4>2, thiolate complexes, THIOLATO, TRANSITION-METAL COMPLEXES},
	isbn = {0020-1693},
	url = {<Go to ISI>://000076202900012},
	author = {Jessop, P. G. and James, Brian R.}
}
