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Article Abstract
Two pseudopolymorphic 1D coordination polymers of the formulas [Cd(3,3'-pytz)(CHOH)(ClO)] () and [Cd(3,3'-pytz)(CHCN)(ClO)] () have been prepared using the electron-deficient 3,6-bis(pyridin-3-yl)-1,2,4,5-tetrazine (3,3'-pytz) ligand and cadmium perchlorate in the chloroform/methanol and chloroform/acetonitrile solvent system, respectively. It was observed that compounds and experienced one-step (CP → CP) single-crystal-to-powder structural transformation to the pure water-coordinated compound [Cd(3,3'-pytz)(HO)(ClO)] () by absorbing water vapor from air (solid-gas phase transformation). Interestingly, compounds , , and undergo a different transformation path and show an in situ unique three-step (CP → CP → Ligand → CP) single-crystal-to-single-crystal (SCSC) structural transformation process through soaking in deionized water (solid-liquid phase transformation). In this fascinating transformation, we report for the first time the direct conversion of a ligand into a coordination polymer by a rare core-shell pathway in a solid-liquid phase transformation. In this process, we obtained compound {[Cd(3,3'-pytz)(HO)](3,3'-pytz)(ClO)(HO)} () (single-crystal = , crystal = , or microcrystal = ) as mixed compounds of core-shell and or core-shell and for compounds ( and ) and , respectively.
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| http://dx.doi.org/10.1021/acs.inorgchem.3c03044 | DOI Listing |
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