fig2
![Coordination-driven [2+2] metallo-macrocycles isomers: conformational control and photophysical properties](https://image.oaes.cc/cb125064-36d2-409e-a3ce-64c7e564b58e/4997.fig.2.jpg)
Figure 2. (A) UV-Vis spectra of LA, LB, SA, and SB in DMSO (λex = 320 nm, c = 10.0 μM). (B) PL spectra of LA, LB, SA, and SB in DMSO (λex = 320 nm, c = 10.0 μM). PL spectra of SA (C) and SB (D) recorded in DMSO/H2O mixtures containing different H2O fractions. The respective inserts show SA and SB dissolved in DMSO/H2O with 0% (left) and 90% H2O (right). Quantum yields of SA (E) and SB (F) versus increasing H2O fractions in DMSO/H2O mixtures, determined using rhodamine B (ΦF = 69.0%) at 365 nm (λex = 320 nm, c = 1.00 μM).