Crystallographic evidence for decomposition of dimethylformamide in the presence of ruthenium(III) chloride

Kahrović, Emira; Orioli, Pierluigi; Bruni, B; Vaira, Massimo Di; Messori, Luigi

doi:10.1016/s0020-1693(03)00312-8

Cited by 19 publications

(10 citation statements)

References 11 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The reason for additional structural complexity must be associated with the nitrate counter anion, which obviously causes a larger distance of the (dpmaH + ) 2 dimers. Similar hydrogen bonded networks are well known for (H 2 NR 2 ) 2 [MCl 6 ] (R = alkyl, M = Sn, Ir, Pt [13][14][15]18]) and ((CH 3 ) 2 NH 2 ) 4 [MCl 6 ]Cl (M = Ru, W [30,31]) which can be discussed as an inverse structure type, as the dialkylaminium cations form two hydrogen bonds whereas there are four for each halogenometallate anions.…”

Section: Salts Based On Hydrogen Bonded (Dpmah + ) 2 Dimerssupporting

confidence: 58%

Constructor Graphs as Useful Tools for the Classification of Hydrogen Bonded Solids: The Case Study of the Cationic (Dimethylphosphoryl)methanaminium (dpmaH+) Tecton

Reiß

2015

Crystals

View full text Add to dashboard Cite

Abstract:The structural chemistry of a series of dpmaH (dpmaH = (dimethylphosphoryl)methanaminium) salts has been investigated using constructor graph representations to visualize structural dependencies, covering the majority of known dpmaH salts. It is shown that the structurally related α-aminomethylphosphinic acid can be integrated in the systematology of the dpmaH salts. Those dpmaH salts with counter anions that are weak hydrogen bond acceptors (ClO 4´, SnCl 6 2´, IrCl 6 2´, I´) tend to form head-to-tail hydrogen bonded moieties purely consisting of dpmaH + cations as the primarily structural motif. In structures with weak to very weak hydrogen bonds between the dpmaH + cations and the counter anions, the anions fill the gaps in the structures. In salts with medium to strong hydrogen bond acceptor counter ions (Cl´, NO 3´, PdCl 4 2´) , the predominant structural motif is a double head-to-tail hydrogen bonded (dpmaH + ) 2 dimer. These dimeric units form further NH¨¨¨X hydrogen bonds to neighboring counter anions X, which results in one-dimensional and two-dimensional architectures.

show abstract

Section: Salts Based On Hydrogen Bonded (Dpmah + ) 2 Dimerssupporting

confidence: 58%

Constructor Graphs as Useful Tools for the Classification of Hydrogen Bonded Solids: The Case Study of the Cationic (Dimethylphosphoryl)methanaminium (dpmaH+) Tecton

Reiß

2015

Crystals

View full text Add to dashboard Cite

show abstract

“…A DMF molecule might decompose into various free radicals, including OHCN:, Å CHO, Å CH 3 , at elevated temperatures [26,[40][41][42]. The catalytic decomposition of DMF molecule and these radicals possibly possesses different temperature dependent kinetics.…”

Section: Morphologies and Yieldmentioning

confidence: 99%

Structure and nitrogen incorporation of carbon nanotubes synthesized by catalytic pyrolysis of dimethylformamide

Tang

Bando

Golberg

et al. 2004

Carbon

114

View full text Add to dashboard Cite

“…Data fitting was performed with the ARTHEMIS software package (version 0.8.012) [19]. The theoretical phases and amplitudes were calculated with FEFF6 on the basis of the structure of [Ru(H 2 O) 6 ] 3+ and [RuCl 6 ] 3− [20][21][22]. Since the coordination number of Ru 3+ in aqueous solution has been reported to be 6 [9,21,22], that of Ru in the sample solutions was fixed at 6.…”

Section: Xafs Measurementsmentioning

confidence: 99%

“…The theoretical phases and amplitudes were calculated with FEFF6 on the basis of the structure of [Ru(H 2 O) 6 ] 3+ and [RuCl 6 ] 3− [20][21][22]. Since the coordination number of Ru 3+ in aqueous solution has been reported to be 6 [9,21,22], that of Ru in the sample solutions was fixed at 6. The number of Cl (N Cl ) in the 10 M HCl system was fixed at 6 on the basis of the similarity of the UV-Vis spectra of 8-10 M HCl solutions in our system and the N Cl of [RuCl 6 ] 3− assigned by Jorgensen [8].…”

Section: Xafs Measurementsmentioning

confidence: 99%

Speciation of Ruthenium(III) Chloro Complexes in Hydrochloric Acid Solutions and Their Extraction Characteristics with an Amide-Containing Amine Compound

Suzuki

Ogata

Tanaka

et al. 2018

Metals

View full text Add to dashboard Cite

Abstract:The refining of platinum group metals is based mainly on solvent extraction methods, whereas Ru is selectively recovered by distillation as RuO 4 . Replacement of distillation by extraction is expected to simplify the purification process. To develop an effective extraction system for Ru, we analyzed the Ru species in HCl with ultraviolet-visible (UV-Vis) and Ru K-edge extended X-ray absorption fine structure (EXAFS) spectroscopies, and we examined the properties of Ru extracted with N-2-ethylhexyl-bis(N-di-2-ethylhexyl-ethylamide) amine (EHBAA) and trioctylamine (TOA). EXAFS and UV-Vis spectra of Ru in HCl solutions revealed that the predominant Ru species in 0.5-10 M HCl solutions changed from [RuCl 4 (H 2 O) 2 ] − to [RuCl 6 ] 3− with the HCl concentration. The extraction percentages (E%) of Ru in the EHBAA system increased with increasing HCl concentration, reached 80% at [HCl] = 5 M, and decreased at higher HCl concentrations; the corresponding E% for TOA were low. EXAFS analysis of the extracted complex indicated that the Ru 3+ had 5 Cl − and 1 H 2 O in its inner coordination sphere. The similarity of the dependence on HCl concentrations of the E% in the EHBAA system and the distribution profile of [RuCl 5 (H 2 O)] 2− on [RuCl n (H 2 O) 6−n ] 3−n suggested that the EHBAA extracted the pentachlorido species.

show abstract

Crystallographic evidence for decomposition of dimethylformamide in the presence of ruthenium(III) chloride

Cited by 19 publications

References 11 publications

Constructor Graphs as Useful Tools for the Classification of Hydrogen Bonded Solids: The Case Study of the Cationic (Dimethylphosphoryl)methanaminium (dpmaH+) Tecton

Constructor Graphs as Useful Tools for the Classification of Hydrogen Bonded Solids: The Case Study of the Cationic (Dimethylphosphoryl)methanaminium (dpmaH+) Tecton

Structure and nitrogen incorporation of carbon nanotubes synthesized by catalytic pyrolysis of dimethylformamide

Speciation of Ruthenium(III) Chloro Complexes in Hydrochloric Acid Solutions and Their Extraction Characteristics with an Amide-Containing Amine Compound

Contact Info

Product

Resources

About