Fig. 4

Schematic illustration of the molecular packing of (BA)0.72(BN)0.28 alloy helices. In (BA)0.72(BN)0.28 alloy helices, the BA host molecules are randomly replaced by BN molecules and a BA-BN dimeric structure with a slight twist is formed
Schematic illustration of the molecular packing of (BA)0.72(BN)0.28 alloy helices. In (BA)0.72(BN)0.28 alloy helices, the BA host molecules are randomly replaced by BN molecules and a BA-BN dimeric structure with a slight twist is formed