• Issue

    Helvetica Chimica Acta: Volume 108, Issue 7

    July 2025

Editorial

Research Article

Green-Tuning of (Chir)Optical Properties for Axially-Chiral Boramidines

  • First Published: 28 April 2025
Green-Tuning of (Chir)Optical Properties for Axially-Chiral Boramidines

Tuning of (chir)optical properties for axially chiral isoquinoline-derived boramidines. Bathochromic shift in absorption and emission with quantum yields up to 70% in N2-saturated solutions, relatively long fluorescence life-times (37 ns), and subsequent cyan and green circularly polarized luminescence with |glum| values up to ∼2 × 10⁻3.

Open Access

A Simplified Approach for Electrochemical Allylic Oxidation of Olefins

  • First Published: 01 May 2025
A Simplified Approach for Electrochemical Allylic Oxidation of Olefins

A simple method for electrochemical allylic oxidation of olefins is established. t-Butyl hydroperoxide serves in a dual-role as mediator and oxygen source. Metal-free and robust electrode materials such as glassy carbon, graphite, or boron-doped diamond can be employed. Only small concentrations of NaBF4 are required as supporting electrolyte.

Open Access

Abstract Conformer Space

  • First Published: 02 May 2025
Abstract Conformer Space

Proteins are intrinsically flexible and thus require an ensemble description. In abstract conformer space, ensemble diversity is easier to assess and the required ensemble size can be established.