Synthesis and Reactivity of Cyclopentadienyl Ruthenium(II) Complexes with Tris(alkylthio)benzenes: Transformation between Dinuclear and Sandwich-Type Complexes

Abstract

To explore the structural transformation of cyclopentadienyl ruthenium (CpRu) complexes in response to external stimuli, the reaction of [RuCp­(MeCN)3]­[X] (X = PF6, (FSO2)2N [= FSA]) and tris­(alkylthio)­benzenes (1,3,5-C6H3(SR)3; L 1 : R = Pr, L 2 : R = Me) was investigated, and the crystal structures and thermal properties of the products were examined. The reaction produced the sandwich complexes [RuCpL n ]­[X] or dinuclear complexes [Ru2Cp2(μ-L n )2(CH3CN) m ]­[X]2 (X = PF6, FSA) depending on the reaction conditions. The sandwich complex [RuCpL 1 ]­[FSA] was an ionic liquid. The solids of dinuclear complexes transformed into the thermodynamically stable sandwich complexes upon heating accompanied by acetonitrile loss. This change resulted in a transformation from crystal to ionic liquid for complexes with the FSA anion. UV irradiation of the sandwich complex [RuCpL 1 ]­[PF6] in methanol produced the dinuclear complex [Ru2Cp2(μ-L 1 )2 L 1 2]­[PF6]2. The complex transformed into the sandwich complex upon heating.

Synthesis, Characterization, Antimicrobial, Density Functional Theory, and Molecular Docking Studies of Novel Mn(II), Fe(III), and Cr(III) Complexes Incorporating 4-(2-Hydroxyphenyl azo)-1-naphthol (Az)

“…It is necessary to ascertain the proportion of coordinated to uncoordinated water molecules in order to get an understanding of the structural transformations that take place in metal complexes as a result of heat treatment (Figure and Table ). ,, …”

“…It is necessary to ascertain the proportion of coordinated to uncoordinated water molecules in order to get an understanding of the structural transformations that take place in metal complexes as a result of heat treatment (Figure 2 and Table 2). 60,37,61 The first stage of deterioration was observed at temperatures between 30 and 430 °C, 30 and 420 °C, and 30 and 440 °C, with calculated weight loss percentages of ( 53 2 and Table 2).…”

Antibacterial, antifungal, anti‐inflammatory evaluation, molecular docking, and density functional theory exploration of 2‐(1H‐benzimidazol‐2‐yl)guanidine mixed‐ligand complexes: Synthesis and characterization

“…It is necessary to ascertain the proportion of coordinated to uncoordinated water molecules in order to get an understanding of the structural transformations that take place in metal complexes as a result of heat treatment 60–62 (Figure 3 and Table 1).…”

Metal-Containing Poly(ionic liquid) Exhibiting Photogeneration of Coordination Network: Reversible Control of Viscoelasticity and Ionic Conductivity

“…[2][3][4][5][6][7][8][9] To develop materials that undergo structural transformation by external stimuli, we have synthesized ILs containing photoreactive ruthenium (Ru) sandwich complexes. [10][11][12][13] For example, we reported previously that IL 1 (Figure 1) transforms into an amorphous coordination polymer (CP) 2 upon UV photoirradiation. 10 In this reaction, photodissociation of the arene ligand followed by coordination of the cyano group to the Ru center forms the network structure.…”

“…Their negligible vapor pressure, flame retardancy, and high ionic conductivity are highly beneficial for electrochemical applications. Although most ILs contain organic cations, metal-containing cations or anions can be used to develop ILs with functionalities derived from the metal ions. − To develop materials that undergo structural transformation by external stimuli, we have synthesized ILs containing photoreactive ruthenium (Ru) sandwich complexes. − For example, we reported previously that IL 1 (Figure ) transforms into an amorphous coordination polymer (CP) 2 upon UV photoirradiation . In this reaction, photodissociation of the arene ligand followed by coordination of the cyano group to the Ru center forms the network structure.…”