The kinetic influence of increasing steric hindrance to metallation by zinc (II) which accompanies the inclusion of 5,10,15,20-meso(tetraphenyl) porphyrin into capped and quadruply bridged closely spaced bis-porphyrin structures

Article abstract of DOI:10.1016/0020-1693(95)04954-1

The solvent system toluene:acetic acid:methanol = 5:20:75% (vol./vol.) has been developed for metallation of porphyrins. This system is quite suitable for kinetic studies because it affords stable homogeneous solutions of porphyrins plus metal salts. In t