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- W2023298977 abstract "The crystal structures of chloro(meso-tetraphenylporphyrinato)germanium(IV), Ge(tpp)Cl2, dimethoxo(meso-tetraphenylporphyrinato)germanium(IV), Ge(tpp)(OMe)2, and dihydroxo(meso-tetraphenylporphyrinato)germanium(IV), Ge(tpp)(OH)2, were determined. The coordination sphere of the Ge4+ ion is a distorted octahedron in which the apical sites are occupied by two monodentate Cl− (or OMe−, OH−) groups. The geometry around the germanium centre of the Ge(tpp)Cl2 molecule has Ge(1)Cl(1) = 2.262(1) and Ge(1)N(1) = 2.019(2) Å. In the structure of Ge(tpp)(OMe)2 the germanium(1)-oxygen distance is 1.826(3), average Ge(1)N = 2.032(3), and O(1)C(23) = 1.331(6) Å. The structure of Ge(tpp)(OH)2 has Ge(1)O(1) = 1.809(3) and Ge(1)N(1) = 2.027(2) Å. Two-stage hydrolysis of Ge(tpp)(OMe)2 was studied by 1H and 13C NMR spectroscopy. The use of a limited amount of water in CDCl3 (or CD2Cl2) allowed the hydrolysis intermediate, hydroxomethoxo(meso-tetraphenylporphyrinato)germanium(IV), Ge(tpp)(OMe) (OH), and hydrolysis product, dihydroxo(meso-tetraphenylporphyrinato)germanium(IV), Ge(tpp)(OH)2, to be identified. X-ray diffraction data and solid-state 13C CP/MAS spectra of Ge(tpp)(OMe)2 provide evidence for two monodentate methoxo groups coordinated to the germanium(IV) atom." @default.
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- W2023298977 title "Crystal structures of chloro(meso-tetraphenylporphyrinato)germanium(IV), Ge(tpp)Cl2, and dihydroxo(meso-tetraphenylporphyrinato)germanium(IV), Ge(tpp)(OH)2, and two-stage hydrolysis of its homologue dimethoxo(meso-tetraphenylporphyrinato)germanium(IV), Ge(tpp)(OMe)2" @default.
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- W2023298977 doi "https://doi.org/10.1016/s0277-5387(97)00011-9" @default.
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