Magnetic Isolation of the Linear Trinuclear Anion in [Cu(Him)] {Cu(Him)[Cu(μ-EDTA)(Him)]}·6HO (1) as the Novel Imidazolium(+) Salt (Him)[Cu(Him){(µ-EDTA)Cu(Him)}]·2HO (2)-A Comparative Look to Their Crystal Structures, Thermal, Spectral and Magnetic Properties and DFT Calculations.

Inspired by the reported crystal structure of compound , we aimed to synthesize and determine the structure of compound , where two imidazolium (Him) ions serve as diamagnetic countercations. Here, we report the thermal stabilities, FT-IR, visible, and RSE spectra, as well as the magnetic properties of both compounds. In these structures, µ-EDTA acts as a pentadentate chelator for both terminal Cu centers within the centrosymmetric linear trinuclear anion.

Supramolecular Nature of Multicomponent Crystals Formed from 2,2'-Thiodiacetic Acid with 2,6-Diaminopurine or N9-(2-Hydroxyethyl)adenine.

The synthesis and characterization of the multicomponent crystals formed by 2,2'-thiodiacetic acid (Htda) and 2,6-diaminopurine (Hdap) or N9-(2-hydroxyethyl)adenine (9heade) are detailed in this report. These crystals exist in a salt rather than a co-crystal form, as confirmed by single crystal X-ray diffractometry, which reflects their ionic nature. This analysis confirmed proton transfer from the 2,2'-thiodiacetic acid to the basic groups of the coformers.