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Abstract: Ruthenium‐containing organometallic ionic liquids with the B(CN)4 anion were developed that generate microporous amorphous coordination polymers upon UV irradiation. UV light irradiation of [Ru(C5H5)(C6H5R)][B(CN)4] (R=butyl, ethyl, octyl) quantitatively generated a yellow powder of a coordination polymer with the formula [Ru(C5H5){B(CN)4}]n. In this reaction, the arene ligand is eliminated by UV irradiation and coordination polymer is formed by coordination of the cyano groups of the anion to the Ru ion. The photogenerated solids exhibited nitrogen absorption properties due to their microporous structure. This paper proposes a method to fabricate functional coordination polymers by photoirradiation of liquids. [ABSTRACT FROM AUTHOR]

We present a new class of tunable aryl alkyl ionic liquids (TAAILs) containing different palladate counter ions. Solid‐state structures for representative compounds have been obtained. Their properties are presented in comparison to those of newly synthesized and reported palladate ionic liquids with conventional counter ions. It was found that the aryl substitution pattern and the type of anion have a profound influence on the melting point. The speciation of the different anions in solution has been rationalized by DFT calculations. Customize, adapt, overcome: Ionic liquids containing a palladate anion are accessible in a very flexible synthetic procedure. The choice of aryl substituent, alkyl group, type of palladate counter ion and halide ligand can all be modified to allow for fine‐tuning of the properties of a wide range of new compounds. [ABSTRACT FROM AUTHOR]

A new β-diiminate ligand (the bis(1-methyl-4,5-diphenyl-1 H-imidazol-2-yl)methane anion, BMIMPh2−) is introduced, in which the ligand framework bears an extended imidazole-based π-system in conjugation with a formal β-diketiminates (NacNac) backbone. Bis-ligated transition metal complexes (Co, Zn) featuring this anionic ligand undergo a series of four consecutive single-electron oxidations that are all ligand-based. The singly and doubly oxidized complexes can be synthesized on a preparative scale and have been fully characterized by various spectroscopic techniques. This is in sharp contrast to the corresponding NacNac-based complexes in which only singly oxidized complexes were isolated and characterized. Single crystal X-ray structure determination revealed a correlation between the intra-ligand metrical parameters and the oxidation state of BMIMPh2−. These structural changes in the ligand framework make BMIMPh2− as a perceptible non-innocent ligand in contrast to NacNac type ligands. [ABSTRACT FROM AUTHOR]