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

Reaction of Ce(NO 3 ) 3 ·6H 2 O and 1,10-phenanthroline in CH 3 OH / H 2 O afforded the title compound [Ce(phen) 2 (H 2 O) 2 (NO 3 ) 2 ](NO 3 )(phen) 2 (H 2 O), which consists of [Ce(phen) 2-  (H 2 O) 2 (NO 3 ) 2 ] +  complex cations, NO 3  -  anions, phen and crystal water molecules. Within the [Ce(phen) 2 (H 2 O) 2 (NO 3 ) 2 ] +  complex cations, the Ce atoms are 10-fold coordinated by four pyridyl N atoms, four nitrato O and two water O atoms with d(Ce-O) = 2.505 - 2.629 and d(Ce-N) = 2.666 - 2.734 Å. The supramolecular assemblies of the complex cations via π-π stacking interactions form 1D columnar chains, which run parallel to give positively charged 2D layers. The phen molecules are also assembled via π-π stacking interactions into 1D columnar chains whose arrangement results in neutral 2D layers. The NO 3  -  anions and the crystal water molecules are situated between the positively charged and neutral 2D layers. The title compound decomposes in four steps upon heating. Magnetic measurements show that it is a ferrimagnet at low temperature and follows the Curie-Weiss law χ m (T - θ) = 0.796 (cm 3  mol -1  K) with the Weiss constant θ = -57(2) K over the temperature range 50 - 300 K. Comparison of the magnetic behavior of the title cerium complex with that of the Pr and Tb phen nitrato complexes of the formula Ln(phen) 2 (NO 3 ) 3  (Ln = Pr, Tb) suggests that magnetic exchange is probably transmitted via the π-π stacking interactions.

zeitschrift für naturforschung b

Magnetic Exchange Based on π-π Stacking Interactions: Synthesis, Crystal Structure, Thermal Decomposition and Magnetic Properties of [Ce(phen) 2 (H 2 O) 2 (NO 3 ) 2 ](NO 3 )(phen) 2 (H 2 O)