Synthesis and Characterization of Crown‐Ether‐Containing Phthalocyanines with Group‐IV‐A Elements | Zendy

Ahsen Vefa | Zendy; Yilmazer Emel | Zendy; Gürek Ayşegül | Zendy; Gül Ahmet | Zendy; Bekâroǧlu Özer | Zendy

AI Assistant Blog Pricing

Home ZAIA Blog

Premium

Synthesis and Characterization of Crown‐Ether‐Containing Phthalocyanines with Group‐IV‐A Elements

Author(s) -

Ahsen Vefa,

Yilmazer Emel,

Gürek Ayşegül,

Gül Ahmet,

Bekâroǧlu Özer

Publication year - 1988

Publication title -

helvetica chimica acta

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.74

H-Index - 82

eISSN - 1522-2675

pISSN - 0018-019X

DOI - 10.1002/hlca.19880710705

Subject(s) - chemistry , phthalocyanine , crown ether , quinoline , tin , polymer chemistry , thermal decomposition , metal , thermal stability , ether , hydrolysis , aqueous solution , condensation polymer , catalysis , inorganic chemistry , medicinal chemistry , organic chemistry , ion

Group‐IV‐A phthalocyanines with four crown ether substituents have been prepared from 4′,5′‐dicyanobenzo(15‐crown‐5), 4′,5′‐diiminoisoindolino(15‐crown‐5), or metal‐free phthalocyanine and the corresponding metal salts. The axial ligands of dichloro[tetra(15‐crown‐5)phthalocyaninato]silicon or ‐tin have been converted into dihydroxy derivatives by hydrolysis in aqueous Et 3 N. The catalytic effect of H 2 O‐free CaC1 2 in quinoline is used for the polycondensation of dihydroxysilicon‐phthalocyanine to cofacially arrayed polymers. The thermal stability of group‐IV‐A‐metal phthalocyanines is confirmed by the higher initial decomposition points (290–440°) compared to those of the corresponding transition‐metal phthalocyanines.

This content is not available in your region!

Continue researching here.

Having issues? You can contact us here

Accelerating Research