6533b871fe1ef96bd12d1ab5

RESEARCH PRODUCT

Examples of UV–Vis profiles use as tool for evidence of the metallophthalocyanines transformation

Gabriela DyrdaRyszard KubiakKrzysztof Ejsmont

subject

hydrochloric acidAcetylacetoneInorganic chemistryHydrochloric acid010402 general chemistrydemetalation01 natural sciencesChlorideAnalytical ChemistryInorganic Chemistrychemistry.chemical_compoundUltraviolet visible spectroscopymedicineBenzeneSpectroscopyautooxidationAutoxidation010405 organic chemistryLigandtransformationOrganic Chemistry0104 chemical sciencesSolventchemistryPhysical chemistrymetallophthalocyaninesspectrum UV–Vismedicine.drug

description

Abstract The UV–Vis spectra for a set of MPcs (Mmetal, Pc = phthalocyanine ligand), i.e.: In(III)PcI (1), Hf(IV)PcI2Pht (Pht = phthalonitrile) (2), Sn(II)Pc (3), Sn(IV)PcI2 (4), and Ge(IV)PcI2 (5) have been examined in two solvents, O-donative acetylacetone, and non-coordinative benzene. The UV–Vis spectra in Hacac solution of 1,2 and 4,5 shows that the axially ligated iodine atoms are replaced by (acac)− anions of the solvent, whereas in 3 the oxygen donors of the solvent causing the auto-oxidation of Sn(II) to Sn(IV) ions and as a result the Sn(II)Pc is transformed into the Sn(IV)Pc(acac)2. The chloride complexes of the 1–5 compounds are formed at Hacac solution after acidification by hydrochloric acid, however each compound solution behaviors specifically. The UV–Vis spectra collected for the studied compounds at benzene solvent both before and after the solution acidization clearly indicate that the respective Q band character (besides 3) remains practically unchanged. The presence of the Cl− ions at the Sn(II)Pc solution in benzene results in the formation of Sn(IV)PcCl2.

yearjournalcountryeditionlanguage
2017-02-01Journal of Molecular Structure
10.1016/j.molstruc.2016.10.070https://doi.org/10.1016/j.molstruc.2016.10.070