New Mn12 clusters with tunable oxidation states via the use of N,N,N',N'-tetrakis(2-hydroxyethyl)ethylenediamine.
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.
Zhou
Ai-Ju
AJ
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.
Qin
Lian-Jing
LJ
Beedle
Christopher C
CC
Ding
Shu
S
Nakano
Motohiro
M
Leng
Ji-Dong
JD
Tong
Ming-Liang
ML
Hendrickson
David N
DN
D004983:Ethanolamines / Q000737:chemistry*; D008345:Manganese / Q000737:chemistry*; D008958:Models, Molecular; D010084:Oxidation-Reduction