Abstract
A density functional theory and wave function theory investigation on the possibility of carbon-free phosphametallocenes [P3MP3]2− and arsenametallocenes [As3MAs3]2− (M=Ni, Pd, Pt) is presented in this work. Staggered singlet D3d [E3ME3]2− (E=P, As)-the smallest inorganic metallocenes possible to construct-proved to be the global minima of the heptaatomic systems and may be targeted in future experiments. Cyclo-P −3 and cyclo-As −3 turned out to possess similar aromaticity to cyclo-P −5 and cyclo-As −5 and may serve as effective ligands to sandwich a wide range of transition metals. The first vertical electron detachment energies of Cs [E3ME3]Li− monoanions with a staggered [E3ME3]2− sandwich core were predicted to be between 2.7 and 2.9 eV; the extent of stabilization by Li+ suggests that such materials be viable targets for experimental characterization.
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This work was supported by the National Natural Science Foundation of China (Grant No. 20873117).
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Miao, C., Chen, Q., Guo, J. et al. Carbon-free D3d [E3ME3]2− (E=P, As; M=Ni, Pd, Pt): The smallest inorganic sandwich complexes with aromatic η3-P −3 and η3-As −3 ligands. Sci. China Chem. 53, 940–944 (2010). https://doi.org/10.1007/s11426-010-0116-x
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DOI: https://doi.org/10.1007/s11426-010-0116-x