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Double-decker yttrium(III) complexes with phthalocyaninato and porphyrinato ligands

✍ Scribed by Jianzhuang Jiang; Jinglei Xie; Michael T. M. Choi; Yan Yan; Sixiu Sun; Dennis K. P. Ng

Publisher
John Wiley and Sons
Year
1999
Tongue
English
Weight
77 KB
Volume
03
Category
Article
ISSN
1088-4246

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✦ Synopsis

A series of new yttrium(III) double-decker complexes with the same and different phthalocyaninato and porphyrinato ligands has been prepared. The homoleptic complexes Y(P) 2 (P = Pc*(C 7 H 15 ) 8 , Pc*(OC 5 H 11 ) 8 ; Pc* = 2,3,9,10,16,17,23,24-octasubstituted phthalocyaninate) have been synthesized by treating yttrium(III) acetylacetonate (Y(acac) 3 ÁH 2 O) with the phthalonitriles C 6 H 2 R 2 (CN) 2 (R = C 7 H 15 , OC 5 H 11 ) in the presence of 1,8-diazabicyclo[5.4.0]undec-7-ene (DBU). The heteroleptic analogues Y(P)(Pc) (P = Pc*(C 7 H 15 ) 8 , Pc*(OC 5 H 11 ) 8 ; Pc = unsubstituted phthalocyaninate) and Y(P)(Por) (P = Pc, Pc*(C 7 H 15 ) 8 ; Por = meso-tetraphenylporphyrinate (TPP), meso-tetra(4-pyridyl)porphyrinate (TPyP)) have been prepared by the base-catalysed tetramerization of the corresponding phthalonitriles using Y(P)(acac) (P = Pc, TPP, TPyP) as templates. The syntheses along with the spectroscopic and electrochemical properties of these novel double-deckers are described.

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