Synthesis and characterization of manganese(I) and rhenium(I) based M2L2- and M2(µ-Br)2L-type diethyleneglycol decorated ester functionalized metallacycles

Self-assembly of thiolato-bridged ester-functionalized Re(i)-based tetranuclear spiro-metallacyclophanes

“…S2, ESI†). 93,94 1 H NMR spectra of the compounds 1–3 displayed appropriate signals and their spectral data are given in the Experimental section. 1 H NMR spectra of 1–3 showed two doublets in the range δ 9.30–8.90 and 7.92–7.51 ppm due to the H 2 and H 3 pyridyl protons of the ptpc ligand, while the alkoxy protons of the ptpc linker appeared in the region δ 5.08–4.83 ppm.…”