title: Rhenium(I) compounds bound by tripodal ligands of pyridine and N-methylimidazole.
abstract: The reaction of Re(CO)(5)Br with tris(2-pyridyl)methanol (tpmOH) leads to unexpectedly complex chemistry with three new compounds forming instead of a single product. In compound 1, the tpmOH ligand binds to the metal in the N,N',N''-mode; 2 has tpmO(-) bound in the N,N',O-mode; while 3 is a dimer with the tpmO(-) ligand utilizing each of the four donor atoms to bridge the two metal centers. The analogous methyl ether ligands, tris(2-pyridyl)methoxymethane (tpmOMe) or tris[2-(l-methylimidazolyl)]methoxymethane (timmOMe), each yielded a single product, 4 and 5, respectively, bound in the N,N',N''-mode, and are new leads for potential radiotherapeutic agents. All compounds have been structurally characterized.
authors.affiliation: Department of Chemistry, College of the Holy Cross, Worcester, MA 01610, USA. rherrick@holycross.edu
authors.forename: Richard S
authors.initials: RS
authors.lastname: Herrick
authors.forename: Christopher J
authors.initials: CJ
authors.lastname: Ziegler
authors.forename: Donald L
authors.initials: DL
authors.lastname: Jameson
authors.forename: Christopher
authors.initials: C
authors.lastname: Aquina
authors.forename: Anil
authors.initials: A
authors.lastname: Cetin
authors.forename: Brenton R
authors.initials: BR
authors.lastname: Franklin
authors.forename: Laura R
authors.initials: LR
authors.lastname: Condon
authors.forename: Natalie
authors.initials: N
authors.lastname: Barone
authors.forename: Joseph
authors.initials: J
authors.lastname: Lopez