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 Plus monthly

Global: Zendy Tools annual

Global: Zendy Tools monthly

Global: Zendy Free Plan

The powder complex containing Cu(II),1,10-phenanthroline (phen) and trifluoroacetate (TFA) has been obtained by single direct interaction of the corresponding precursors. The chemical formula of [Cu(phen)2 (H2O)2](TFA)2.2H2O, diaquabis(phenanthroline)copper(II) trifluoroacetate dihydrate, has been proposed based on the TGA-DTA and the equivalent electrical conductance which was found in the range of 3 ions per molecule. The corresponding magnetic moment (μeff), 1.77-181 BM, supports that it is normal paramagnetic corresponding to spin-only value for an unpaired electron in the electronic configuration of Cu(II). UV-Vis spectrum of the complex reveals the only one broad absorption observed at about 681.50 nm (14673.51 cm-1), being associated with the spin allowed transition, Eg → T2g. The infrared spectrum shows absorptions of ligand group which is influenced by the metal-ligand interaction in this complex. The powder XRD of this complex was refined by Le Bail method of Rietica program and found to be fit as triclinic symmetry of space group P1 with the cell parameters of a = 10.8985A; b = 41.0532A; c = 16.1082A; α = 98.27200; b = 91.95440; γ = 82.40710; V = 7068.8295A3; Z = 1; with figure of merit: Rp = 1.83; Rwp = 5.70; Rexp = 0.37; Bragg R-Factor = 0.03; and GOF = 231.4.

Structural Study of the Powder Complex of Cu(II)-1,10-Phenanthroline- Trifluoroacetate