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Osmium Complexes of the 5,10,15,20‐Tetrakis(4‐phosphonomethylphenyl)porphyrin Anion, A New Water‐Soluble Tetraphenylporphyrinate System
Author(s) -
Buchler Johann W.,
Simon Joachim R.
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 - 10.1002/1099-0682(200012)2000:12<2615::aid-ejic2615>3.0.co;2-0
Subject(s) - chemistry , osmium , porphyrin , cyclic voltammetry , nuclear magnetic resonance spectroscopy , proton nmr , ion , medicinal chemistry , water soluble , inorganic chemistry , stereochemistry , electrochemistry , photochemistry , ruthenium , organic chemistry , catalysis , electrode
The synthesis of a new class of water‐soluble osmium tetraphenylporphyrinates, complexes of the tetrakis(4‐phosphonomethylphenyl)porphyrin anion [H 2 (tP 4 O 8 {OH} 4 mpp)] 4− (5) , is described. Starting from OsCO(tmecpp)thf (1a) and OsO 2 (tmecpp) (1b) , the new complexes 5a−c were synthesized by a four‐step reaction with Os(t{OH} 4 mpp)LL′ (2a−b) , Os(tBr 4 mpp)LL′ (3a−b) , and Os(tP 4 O 4 {OEt} 8 mpp)LL′ (4a−c) as intermediates. The new complexes were characterized by UV/Vis, IR, 1 H NMR, and 31 P NMR spectroscopy, as well as by cyclic voltammetry and electrophoresis.