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[An(H2O)9](CF3SO3)3 (An=U–Cm, Cf): Exploring Their Stability, Structural Chemistry, and Magnetic Behavior by Experiment and Theory

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  • The authors are indebted for the use of 249Cf produced by the HFIR at Oak Ridge National Laboratory.

Abstract

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Lanthanide-like: X-ray diffraction and density functional theory studies show that [An(H2O)9]3+ ions of the actinides U3+–Cf3+ in crystals of their triflate salts have the same structure and electrostatic bonding as their lanthanide counterparts La3+–Eu3+. Moreover, the nine-coordinate geometry is essentially preserved in solution for the lighter elements (see picture).

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