Sponge-like Reversible Transformation of a Bimetallic Cyanometallate Polymer
نویسندگان
چکیده
Two new cyano-bridged Ru-Cu polymers, the one-dimensional chain {[Cu(tnH)2(H2O)2][Ru(CN)6] ·2H2O}∞ (1) (where tn ) 1,3-diaminopropane) and the pseudo-two-dimensional network {[Cu(tnH)2][Ru(CN)6]}∞ (2), have been prepared and fully characterized. Compounds 1 and 2 both crystallize in the same monoclinic space group, P21/n. Complex 1 was characterized by single crystal X-ray analysis, and compound 2 was characterized by X-ray powder diffraction (XRPD) techniques. Compound 2 was prepared by dehydration of 1; structure 1 can be regenerated by rehydration of 2. The “sponge-like” behavior of this molecular transformation is accompanied by a color change and has been shown by in situ X-ray powder diffraction and immersion calorimetry to be completely reversible.
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