World Scientific
Skip main navigation

Cookies Notification

We use cookies on this site to enhance your user experience. By continuing to browse the site, you consent to the use of our cookies. Learn More
×

System Upgrade on Tue, May 28th, 2024 at 2am (EDT)

Existing users will be able to log into the site and access content. However, E-commerce and registration of new users may not be available for up to 12 hours.
For online purchase, please visit us again. Contact us at customercare@wspc.com for any enquiries.

Syntheses and properties of amphiphilic zinc(II), nickel(II), and palladium(II) phthalocyanines with eight tri(oxyethylene) chains introduced at non-peripheral αα positions

    https://doi.org/10.1142/S1088424622500948Cited by:0 (Source: Crossref)

    Amphiphilic zinc(II) (1), nickel(II) (2), and palladium(II) (3) complexes of 1,4,8,11,15,18,22,25-octakis(1,4,7,10-tetraoxaundecyl)phthalocyanine were synthesized and characterized by elemental analysis and MALDI-TOF mass and 1H NMR spectroscopies. Electronic absorption spectra showed aggregation of the phthalocyanine molecules in H2H2O for 2 and 3, while the monomeric form for 1 in H2H2O, and 1, 2, and 3 in CH2Cl2CH2Cl2. The cyclic voltammograms of 1, 2, and 3 in CH2Cl2CH2Cl2 showed that oxidation of the phthalocyanine ring occurs easily in these complexes. This may be due to the energetically increased HOMO, coming from the deformation of the phthalocyanine ring. Steric hindrance between the αα-introduced 1,4,7,10-tetraoxaundecyl groups (tri(oxyethylene) chains) within the phthalocyanine molecule gives rise to the deformation of the phthalocyanine ring, which decreases the aggregating nature of the present complexes.

    Dedicated to Prof. Tomás Torres on the occasion of his 70th birthday

    Most comprehensive & up-to-date research on PORPHYRINS
    Handbook of Porphyrin Science now available in 46 volumes