The title compounds have been synthesized by the reaction of (TPP)SnCl2with Hg[Mn(CO)5]2and Hg[Co(CO)4]2or by the reaction of (TPP)InCl with Mn2(CO)10and Co2(CO)8. The structure of (TPP)Sn-Mn(CO)4-Hg-Mn(CO)5has been solved at room temperature. It crystallizes in the trinclinic system, space group P1*. Its lattice constants are a = 14.79 (4) Å, b = 14.87 (3) Å, c = 13.49 (2) Å, α = 92.3 (2)°, β = 111.3 (2)°, and γ = 109.3 (3)° with Z = 2. The molecule contains a bent four metal atom unit, (TPP)Sn-Mn(l)(CO)4-Hg-Mn(2)(CO)5, extended over the porphyrin ring with a right angle at Mn(1). The observed Sn-Mn bond length, 2.554 (7) A, is the shortest one yet observed for tin-manganese bonded compounds, and the tin atom lies about 0.85 A above the plane defined by the four nitrogen atoms of the porphyrin ring. All the synthesized compounds show very strong absorptions at around 450 nm and strong absorptions in the 340-390-nm region. 1H and 13C NMR have been measured for these compounds.
ASJC Scopus subject areas
- Physical and Theoretical Chemistry
- Inorganic Chemistry