Nonacarbonyl Triironditelluride

The filtrate from the above extraction is evaporated to dryness and treated with 100 mL of hexane to give 5.5 g of a black residue. The resulting slurry is heated under reflux for 30 min, followed by cooling and filtration. The yield of Fe3Te2(CO)9 is 5.2 g (7.7 mol, 30%). The previously isolated Fe3Te2(CO)i0 

The IR spectrum of a cyclohexane solution of Fe3Te2(CO)9 is characterized by the three bands in the carbonyl region at 2045(vs), 2025(vs), and 2005(s)cm I. A shoulder can be seen at 1998 cm-1. Fe3Te2(CO)9 exhibits a single peak in the 125Te NMR spectrum at 1123 ppm downfield of Me2Te. 

SUBMITTED BY JAMES P. COLLMAN,1 VIRGIL J. LEE,1 and XUMU ZHANG  

CHECKED BY HONG PING YUAN and L. KEITH WOO1 

The most common methods of attaching substituents to porphyrins utilize ortho-phenyl-substituted derivatives of 5,10,15,20-tetraphenyl-21 H,23//-por-phine (TPP). While (2-aminophenyl) TPP derivatives have been extensively used in the preparation of biomimetic systems,5 the corresponding (2-hy-droxyphenyl) TPP derivatives have only recently been utilized.6 One of the limitations to the use of hydroxy-substituted systems has been the synthesis of 5,10,15,20-tetrakis(2,6-dihydroxyphenyl)-21//,23//-porphine 3. 

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