Ionic liquids containing cationic SNS-pincer palladium(II) complexes: Effects of ancillary ligands on thermal properties and solvent polarities

Funasako, Yusuke; Kaneshige, K.R.; Inokuchi, Makoto; Hosokawa, Hitoshi; Mochida, Tomoyuki

doi:10.1016/j.jorganchem.2015.08.009

Cited by 7 publications

(3 citation statements)

References 32 publications

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“…[1][Tf2N] (Tm = 62.0 °C, Tg = −11 °C) can be regarded as an ionic liquid but is a solid at room temperature. The rather high melting point of [1][Tf2N] is likely caused by the large polarity, planar shape, and heavy molecular weight of the cation, considering the thermal properties of ionic liquids of pincer complexes [10]. The SbF6 − and BF4 − salts exhibit melting points higher than 100 °C, and the achiral salts exhibit higher melting points than the chiral salts.…”

Section: Thermal Propertiesmentioning

confidence: 99%

Synthesis and thermal properties of salts comprising cationic bis(oxazoline)-AuIII complexes and fluorinated anions

et al. 2016

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Salts comprising cationic bis(oxazoline) (box)-Au III complexes and fluorinated anions were synthesized and their thermal properties were investigated. Cations that contain box ligands with butyl substituents (butyl-box) were used with either achiral-(R,S) ([1] +) or chiral-(S,S) ([2] +) configurations. [1][Tf2N] (Tf2N − = bis(trifluoromethanesulfonyl)amide) is a solid that can also be classified as an ionic liquid (Tm = 62 °C, Tg = −11 °C). [1]X and [2]X (X = SbF6 − and BF4 −) exhibit melting points higher than 100 °C, where [1]X exhibits a higher melting point than [2]X. A salt with an ethyl-box ligand ([3][SbF6]) exhibits no melting up to its decomposition temperature of 267 °C. Crystal structure determination revealed that the achiral cation in [1][BF4] has a bent structure. The potential utility of [1][Tf2N] for catalysis was demonstrated by the catalytic formation of an acetal from an alkyne.

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Section: Thermal Propertiesmentioning

confidence: 99%

Synthesis and thermal properties of salts comprising cationic bis(oxazoline)-AuIII complexes and fluorinated anions

et al. 2016

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“…Early advances were motivated to develop ILs as green, nonvolatile, nonflammable, and stable solvents, however, recent findings have broadened the field, redefining ILs as low melting salts (melting point <100°C) with an unlimited suite of tunable properties including toxicity, volatility, flammability, and instability . The erstwhile narrow perspective that views ILs as salts of quaternary ammonium, imidazolium, pyrrolidinium, pyridinium, or phosphonium cations has broadened as new cations including the bioinspired cholinium and guanidinium cations as well as metal‐containing cations are paired with various anions to afford salts that meet the definition of IL (Figure ). The evolving complexity of the precursors fosters a conjecture that explains their characteristically low melting point by the structural heterogeneity of a sterically hindered asymmetric cation that impedes strong ionic interaction with the anion as well as precludes ordered packing within a crystal lattice.…”

Section: Introductionmentioning

confidence: 99%

“…Incorporating a metal center into an organic molecule integrates the unique magnetic, photo‐activity, and redox‐activity of metals with the inherent stability and processibility of organic molecules . Toward this direction, metal‐containing ILs are emerging as counterparts of purely organic‐based ILs with the intent of imparting new functions to liquid salts . This development challenges the concept of ILs as organics salts as the realm opens to organometallic and coordination chemistry.…”

Section: Introductionmentioning

confidence: 99%

Ionic liquids for addressing unmet needs in healthcare

Agatemor¹,

Ibsen²,

Tanner³

et al. 2018

Bioengineering & Transla Med

135

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Advances in the field of ionic liquids have opened new applications beyond their traditional use as solvents into other fields especially healthcare. The broad chemical space, rich with structurally diverse ions, and coupled with the flexibility to form complementary ion pairs enables task‐specific optimization at the molecular level to design ionic liquids for envisioned functions. Consequently, ionic liquids now are tailored as innovative solutions to address many problems in medicine. To date, ionic liquids have been designed to promote dissolution of poorly soluble drugs and disrupt physiological barriers to transport drugs to targeted sites. Also, their antimicrobial activity has been demonstrated and could be exploited to prevent and treat infectious diseases. Metal‐containing ionic liquids have also been designed and offer unique features due to incorporation of metals. Here, we review application‐driven investigations of ionic liquids in medicine with respect to current status and future potential.

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Tailored Palladate Tunable Aryl Alkyl Ionic Liquids (TAAILs)

Schroeter

Soellner

Straßner

2019

Chemistry A European J

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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.

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Ionic liquids containing cationic SNS-pincer palladium(II) complexes: Effects of ancillary ligands on thermal properties and solvent polarities

Cited by 7 publications

References 32 publications

Synthesis and thermal properties of salts comprising cationic bis(oxazoline)-AuIII complexes and fluorinated anions

Synthesis and thermal properties of salts comprising cationic bis(oxazoline)-AuIII complexes and fluorinated anions

Ionic liquids for addressing unmet needs in healthcare

Tailored Palladate Tunable Aryl Alkyl Ionic Liquids (TAAILs)

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