@article {7313,
	title = {SYNTHESIS AND CHARACTERIZATION OF LANTHANIDE [LN(L)]2 COMPLEXES OF N4O3 AMINE PHENOL LIGANDS WITH PHENOLATE OXYGEN BRIDGES - EVIDENCE FOR VERY WEAK MAGNETIC EXCHANGE BETWEEN LANTHANIDE IONS},
	journal = {Journal of the American Chemical Society},
	volume = {114},
	number = {15},
	year = {1992},
	note = {ISI Document Delivery No.: JE225Times Cited: 152Cited Reference Count: 37},
	month = {Jul},
	pages = {6081-6087},
	type = {Article},
	abstract = {{The synthesis and characterization of three potentially heptadentate (N4O3) amine phenols and of a series of their mononuclear and dinuclear lanthanide complexes are reported. The heptadentate ligands are KBH4 reduction products of the Schiff bases derived from the condensation reactions of tris(2-aminoethyl)amine with 3 equiv of one of salicylaldebyde (tris(((2-hydroxybenzyl)amino)ethyl)amine (H3L1)), 5-chlorosalicylaldehyde (tris(((2-hydroxy-5-chlorobenzyl)amino)ethyl)amine (H3L2)), and 5-bromosalicylaldehyde (tris(((2-hydroxy-5-bromobenzyl)amino)ethyl)amine (H3L3)). The reaction of an amine phenol with 1 equiv of a lanthanide (Ln) nitrate produces the mononuclear complex [Ln(H3L)(NO3)3]; homodinuclear complexes [Ln(L)]2 were obtained from the reaction of lanthanide salts with the respective ligand in the presence of a base (hydroxide or acetate). The X-ray structure of [Gd(L1)]2.2CHCl3 (H3L1 = tris(((2-hydroxybenzyl)amino)ethyl)amine) has been determined; it is the first structurally characterized example of an [Ln(L)]2 complex, a homodinuclear eight-coordinate lanthanide complex [Ln(L)]2 with heptadentate ligands only. The complex crystallizes as a chloroform solvate in the triclinic space group P1BAR with a = 12.002 (2) angstrom},
	keywords = {ACID, CHEMISTRY, COORDINATION, CRYSTAL-STRUCTURES, MOLECULAR-STRUCTURE, SCHIFF-BASE LIGANDS, TETRAHYDRATE},
	isbn = {0002-7863},
	url = {<Go to ISI>://A1992JE22500028},
	author = {Liu, S. and Gelmini, L. and Rettig, S. J. and Thompson, R. C. and Orvig, Chris}
}
