194664-87-4Relevant academic research and scientific papers
A new synthesis of acetato porphyrinato indium(III) from indium(III) oxide and X-ray crystal structures of in(tpyp)(OAc) and in(tmpp)(OAc)
Hong, Tay-Ning,Sheu, Yeong-Horng,Jang, Keh-Wen,Chen, Jyh-Horung,Wang, Shin-Shin,Wang, Ju-Chun,Wang, Sue-Lein
, p. 2647 - 2654 (1996)
The indium porphyrin complexes [In(tpp)(OAc), In(tpyp)(OAc), In(tmpp) (OAc)] were prepared in good yields by refluxing the respective porphyrin (tpp, tpyp, tmpp) with In2O3 in acetic acid containing sodium acetate. The structures of In(tpyp) (OAc) and In(tmpp)(OAc) were determined by a single-crystal X-ray structure analysis. The indium atom is displaced 0.731 A from the mean porphyrin plane (C20N4). The geometry around the indium centre of the In(tpyp)(OAc) molecule has In(1) - O(1) = 2.185(6), In(1) - O(2) = 2.412(6) and average In(1) - Np = 2.177(5) A. This indicates that an asymmetric-bidentate acetato group is coordinated to the indium(III) atom in In(tpyp)(OAc). In the structure of In(tmpp)(OAc) the indium(1)-oxygen distances are In(1) - O(6) = 2.31(1) and In(1) - O(5) = 2.31(1) A, whereas the indium(1) atom lies 0.697 and 0.758 A from the four porphyrin nitrogens (4 Np) and the 24-atom porphyrin plane (C20N4), respectively. This indicates that In(1)(tmpp)(OAc) contains a symmetric bidentate binding of the acetate ligand. Copyright
