Abstract
5-Phenyl-, 5,15-diphenyl-5,15-di(thiophen-2-yl)-, and 5,10,15,20-tetraphenyloctaalkyl-21H,23H-porphyrins in benzene–acetic acid mixtures are moderate bases (pK–0.27 to–2.48). There is no simple correlation between the basicity constants and any electronic or geometric structure parameter of their molecules due to the contributions of three factors to the basicity: distortion of the planar structure in highly substituted macrocycles and their protonated forms, positive charge delocalization over the conjugated bond system, and electronic effects of substituents.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
