科研之友
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摘要
A low-spin, macrocyclic iron(II) complex in an aqueous solution responds to the addition of a chemical reactant (dithionite) by transformation into a high-spin complex, detectable by measurement of the longitudinal relaxation time (T-1) of surrounding water hydrogen nuclear spins. The initial compound does not modify T-1 of pure water at concentrations as high as 4 mM. The response is pH-dependent, and the complex is robust at a variety of conditions.
- 出版日期2012-1-2
