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Updated: Dec 17, 2025

Accumulation and Analysis of Cuprous Ions in a Copper Sulfate Plating Solution
Published on: March 20, 2019
Chemical bonding in cuprous complexes with simple nitriles: octet rule and resonance concepts versus quantitative
Simone Potenti1, Lorenzo Paoloni1, Surajit Nandi1
1Scuola Normale Superiore, SMART Laboratory, Piazza dei Cavalieri 7, 56126 Pisa, Italy. sergio.rampino@sns.it.
Abstract:
Chemical bonding in a set of six cuprous complexes with simple nitriles (CN-, HNC, HCN, CH3NC, and CH3CN) is investigated by means of a recently devised analysis scheme framed in density-functional theory and quantitatively singling out concurrent charge flows such as σ donation and π backdonation. The results of our analysis are comparatively assessed against qualitative models for charge redistribution based on the popular concepts of octet rule and resonance structures, and the relative importance of different charge-flow channels relating to σ donation, π back-donation, polarization, and hyperconjugation is discussed on a quantitative basis.
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