Gas-Phase Transformation of Fluorinated Benzoporphyrins to Porphyrin-Embedded Conical Nanocarbons.
作者： Dominik Lungerich , Jakob Felix Hitzenberger , Michael Ruppel , Tibor Döpper , Matthias Witt
关键词: Metalation 、 Graphene 、 Chemistry 、 Mass spectrometry 、 Collision-induced dissociation 、 Surface modification 、 Dissociation (chemistry) 、 Density functional theory 、 Porphyrin 、 Photochemistry
摘要: Geodesic nitrogen-containing graphene fragments are interesting candidates for various material applications, but the available synthetic protocols, which need to overcome intrinsic strain energy during formation of bowl-shaped skeletons, often incompatible with heteroatom-embedded structures. Through this mass spectrometry-based gas-phase study, we show by means collision-induced dissociation experiments and supported density functional theory calculations, first evidence a porphyrin-embedded conical nanocarbon. The influences metalation functionalization used tetrabenzoporphyrins have been investigated, revealed different cyclization efficiencies, ionization possibilities, variation pathway. Our results suggest stepwise process HF elimination from fjord region, supports selective pathway towards bent fragments.
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