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 cyanides $M$CN, $M$=Cu, Ag, Au, have experimentally a structure withhexagonally packed, infinite -$M$-CN-$M$-CN- chains. Following our earlierstudy for AuCN, we now predict that all three $M$CN could have an alternative$M_3$C$_3$N$_3$ sheet structure of comparable energy with the known one. Thevalence isoelectronic systems $M$C$_2$ versus $M_3$C$_6$, $M$=Be-Ba; Zn-Hg arealso studied. Now, the known dicarbides have the CaC$_2$ or MgC$_2$ chainstructures. The predicted sheets lie energetically below the chains for $M$ =Zn, Cd, and Hg. All these systems are experimentally unknown. Indeed, they areclearly endothermic, compared to the elements. For some sheet structures thedensities of states suggests rather small band gaps and even metalliccharacter. When available, the experimental geometries agree well with thecalculated ones for both cyanides and dicarbides.Comment: 8 pages, 8 figures, 10 table

physical review. b, condensed matter and materials physics

Comparison of chain versus sheet crystal structures for the cyanides<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:mi>M</mml:mi><mml:mi mathvariant="normal">C</mml:mi><mml:mi mathvariant="normal">N</mml:mi></mml:mrow></mml:math><mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:mo>(</mml:mo><mml:mi>M</mml:mi><mml:mo>=</mml:mo><mml:mi mathvariant="normal">Cu</mml:mi><mml:mo></mml:mo><mml:mi mathvariant="normal">Au</…

Comparison of chain versus sheet crystal structures for the cyanidesMCN(M=CuAu