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Synthesis, Spectroscopic, and Electrochemical Properties of Rare Earth Double‐Deckers with Tetra( tert ‐butyl)‐2,3‐naphthalocyaninato Ligands
Author(s) -
Jiang Jianzhuang,
Liu Wei,
Poon KaWo,
Du Daming,
Arnold Dennis P.,
Ng Dennis K. P.
Publication year - 2000
Publication title -
european journal of inorganic chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.667
H-Index - 136
eISSN - 1099-0682
pISSN - 1434-1948
DOI - 10.1002/(sici)1099-0682(200001)2000:1<205::aid-ejic205>3.0.co;2-1
Subject(s) - chemistry , tetra , electrochemistry , rare earth , metal , medicinal chemistry , ion , homo/lumo , stereochemistry , crystallography , molecule , organic chemistry , electrode , mineralogy
A series of rare earth(III) double‐deckers RE[Nc( t Bu) 4 ] 2 [RE = La, Ce, Pr, Nd, Eu, Gd, Tb, Y, Er; Nc( t Bu) 4 = dianion of tetra( tert ‐butyl)‐2,3‐naphthalocyanine] ( 1 – 9 ) have been prepared by treating RE(acac) 3 · n H 2 O (acac = acetylacetonate) with 6‐ tert ‐butylnaphthalonitrile in refluxing n ‐octanol in the presence of 1,8‐diazabicyclo[5.4.0]undec‐7‐ene (DBU). These novel sandwich‐type complexes have been spectroscopically characterized. The electrochemical studies show that the first oxidation and the first reduction potentials increase with the size of the central metal ions with a relatively small separation (0.28–0.33 V), reflecting the narrow HOMO–LUMO gap.