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

The complexes of 2-substituted-1,3-diphenyl-1,3-propanedione with copper(II) ion and their 2,2'-bipyridine and 1,10-phenanthroline adducts were synthesised and characterised by microanalysis, conductance, magnetic and spectral measurements. The conductance data showed that [Cu(dbm)(phen)](dbm) and [Cu(Me-dbm)(phen)](Me-dbm) are 1:1 electrolytes. The infrared spectra revealed the different shifts of the carbonyl frequency. While the electronic solid reflectance spectra of the prepared complexes exhibited three peaks with varying ?max between 12,121-21,505 cm-1, the adducts displayed single bands in the visible region between 13,553-14,698 cm-1 except for [Cu(dbm)(phen)](dbm) and [Cu(Me-dbm)(phen)](Me-dbm) with additional two peaks. These peaks have been assigned as d-d transitions. Using Density Functional Theory (DFT) and Semi-empirical PM3, the modeled compound showed a distorted five coordinate square pyramidal geometry.

international journal of chemistry

Synthesis, Spectroscopic Properties and Structural Studies of Copper(II) Complexes of 2-Substituted-1,3-Diphenyl-1,3-Propanedione, Their 2,2'-Bipyridine and 1,10-Phenanthroline Adducts