title: New Mn12 clusters with tunable oxidation states via the use of N,N,N',N'-tetrakis(2-hydroxyethyl)ethylenediamine.
abstract: Room-temperature reactions of N,N,N',N'-tetrakis(2-hydroxyethyl)ethylenediamine with manganese(II) salts yield a novel family of Mn(12) clusters incorporating the same Mn(12)O(4) core and tunable oxidation states of Mn(III)(x)Mn(II)(12-x) (x = 8, 10, and 12). Magnetic susceptibility data indicate that the spin of the ground state increases as the number of Mn(III) ions is increased, leading to increases in the magnitude of the out-of-phase ac susceptibility signal as the number of Mn(III) ions is increased.
authors.affiliation: MOE Key Laboratory of Bioinorganic and Synthetic Chemistry, State Key Laboratory of Optoelectronic Materials and Technologies, School of Chemistry and Chemical Engineering, Sun Yat-Sen University, Guangzhou 510275, People's Republic of China.
authors.forename: Ai-Ju
authors.initials: AJ
authors.lastname: Zhou
authors.forename: Lian-Jing
authors.initials: LJ
authors.lastname: Qin
authors.forename: Christopher C
authors.initials: CC
authors.lastname: Beedle
authors.forename: Shu
authors.initials: S
authors.lastname: Ding
authors.forename: Motohiro
authors.initials: M
authors.lastname: Nakano
authors.forename: Ji-Dong
authors.initials: JD
authors.lastname: Leng
authors.forename: Ming-Liang
authors.initials: ML
authors.lastname: Tong
authors.forename: David N
authors.initials: DN
authors.lastname: Hendrickson
mesh_terms: D004983:Ethanolamines / Q000737:chemistry*; D008345:Manganese / Q000737:chemistry*; D008958:Models, Molecular; D010084:Oxidation-Reduction