1-(2-biphenyl)-3-methyltriazenide-N-oxide as a template for intramolecular copper(II)⋯arene-π interactions

Structural Variation and Luminescence Properties of Tri- and Dinuclear CuII and ZnII Complexes Constructed from a Naphthalenediol-Based Bis(Salamo)-type Ligand

“…In contrast, due to the changes of the ligand, Cu II atoms in 4 just adopt tetra-coordination with two unexpected deprotonated ligands. In consideration of Cu···π interactions (Cu1···Cg10 and Cu2···Cg4) between the Cu II centers and adjacent rings, the Cu II coordination geometries expand to distorted square-pyramidal . The coordination number of the central metal atoms from 4 to 7 was constructed in order to reflect the impact of anions, metal cations, and reaction conditions on the structures.…”

Fluorescence properties of heterotrinuclear Zn(ii)–M(ii) (M = Ca, Sr and Ba) bis(salamo)-type complexes

“…In complex 1, the coordination pattern of the two Zn(II) atoms (Zn1 and Zn2) are penta-coordinated, and the s values are 0.17 and 0.10, 18 respectively. Zn1 and Zn2 atoms both have distorted square pyramidal geometries, 19 while the central Ca(II) atom is octa-coordinated with a distorted square antiprism geometry.…”

Catalytically Generated Allyl Cu(I) Intermediate via Cyclopropene Ring-Opening Coupling en Route to Allylphosphonates

“…Omitting 4-Me led to better correlation (blue line), lending more support for the role of EWGs in deviating from the trend in favor of the Z -isomer. This effect could be attributed to appreciable Cu­(I)–arene interaction in the allylcopper species ( C and D ) in EWG-substituted substrates . This trend is opposite to those observed in cationic Cu­(I)– and Cu­(II)–arene complexes, where electron-donating groups facilitate charge transfer, , implying a possible interaction engaging the electron-rich Cu­(I) center in C / C′ to be dominated by d−π* interaction.…”