Fig. 2: Topochemical polymerization within single crystals for the synthesis of PDDA.
From: Polydiacetylene-based ultrastrong bioorthogonal Raman probes for targeted live-cell Raman imaging
a Ordered alignment of DDA monomers generated within a host–guest supramolecular framework with Host 1. b, c Co-crystal structure of PDDA and host 1, as determined by single crystal X-ray diffraction. b Side view; c Top view. The unit cell parameters (triclinic P-1) are a = 4.824(7) Å, b = 9.085(12) Å, c = 12.724 Å, α = 108.78(3)°, β = 96.71(3)°, γ = 96.19(3)°, V = 518.03 Å3, Z = 2. d Microscope image of PDDA·1 co-crystals. Scale bar: 1 mm. Inset: Scanning electronic microscopy image of the corresponding co-crystals. Scale bar: 2 μm. e PDDA aqueous solution at different pH values.
