94928-92-4Relevant academic research and scientific papers
Metal-metal bonds extended over a porphyrin ring. 1. Syntheses of (TPP)Sn-M(CO)n-1-Hg-M(CO)n and (TPP)In-M(CO)n (M(CO)n = Mn(CO)5, Co(CO)4) and X-ray molecular structure analysis of (TPP)Sn-Mn(CO)4-Hg-Mn(CO)5·1/2CH2Cl 2
Onaka, Satoru,Kondo, Yoshinori,Yamashita, Masahiro,Tatematsu, Yukinobu,Kato, Yoshio,Goto, Masafumi,Ito, Tasuku
, p. 1070 - 1076 (2008/10/08)
The title compounds have been synthesized by the reaction of (TPP)SnCl2 with Hg[Mn(CO)5]2 and Hg[Co(CO)4]2 or by the reaction of (TPP)InCl with Mn2(CO)10 and Co2(CO)8. The structure of (TPP)Sn-Mn(CO)4-Hg-Mn(CO)5 has been solved at room temperature. It crystallizes in the trinclinic system, space group P1. Its lattice constants are a = 14.79 (4) ?, b = 14.87 (3) ?, c = 13.49 (2) ?, 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(1)(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) ?, is the shortest one yet observed for tin-manganese bonded compounds, and the tin atom lies about 0.85 ? 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.
