English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Tools annual

Global: Zendy Free Plan

Global: Zendy Tools monthly

Global: Zendy Plus monthly

Ultrasonic velocity ( u ) and density ( ρ ) of the binary mixtures of acetonitrile (AN) with nitromethane (NM) and dimethylsulfoxide (DMSO) as well as of the solutions of Bu 4 NBPh 4 , Bu 4 NClO 4 , [Cu(CH 3 CN) 4 ]ClO 4 , [Cu(Phen) 2 ]ClO 4 , [Cu(DMPhen) 2 ]ClO 4  and [Cu((NH 2 ) 2 CS) 4 ]ClO 4  have been measured over the entire composition range at 298.15 K. Using these data, isentropic compressibilities ( K  s ) and apparent molal isentropic compressibilities ( K  s,   ϕ  ) for various salts have been calculated and used for the evaluation of limiting apparent molal isentropic compressibilities ( K  s,   ϕ   0 ). The  K  s,   ϕ   0  values of various salts have been split into the contribution of individual ions ( K  s,   ϕ   0 ) ± . The ( K  s,   ϕ   0 ) ±  values for all copper (I) cations [Cu(CH 3 CN) 4 ] + , [Cu(Phen) 2 ] + , [Cu(DMPhen) 2 ] +  and [Cu((NH 2 ) 2 CS) 4 ] +  are negative and large, for Bu 4 N +  and Ph 4 B −  are positive and large at all compositions in both AN + NM and AN + DMSO mixtures but for ClO 4  −  are negative in AN + DMSO mixtures and positive in AN + NM mixtures. The variation of ( K  s,   ϕ   0 ) ±  values with solvent composition indicates that both DMSO and NM interact with complex copper (I) cations forming complex ions of the type [Cu(CH 3 CN) 4 −    x  (S)  x  ] +  ( x  = 1–4 and  S  = co-solvent) and [Cu(ligand) 2 ] + (CH 3 CN)  y  (S)  z   in which AN is systematically replaced by the co-solvents. DMSO interacts more strongly with complex copper (I) cations and ClO 4  −  ion as compared to NM. Bu 4 N +  and Ph 4 B −  show some special interaction with AN which decreases with the increase of NM or DMSO composition in the mixture.

zeitschrift für physikalische chemie

Compressibility Behaviour of some Copper (I) Perchlorate Complexes in Binary Mixtures of Acetonitrile with Nitromethane and Dimethylsulfoxide at 298.15 K