The effect of pressure on electronic excitations in Mn2(CO)10 and Re2(CO)10 |
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| Affiliation: | 1. Guangdong Provincial Key Laboratory of Functional Soft Condensed Matter, School of Materials and Energy, Guangdong University of Technology, Guangzhou 510006, PR China;2. Department of Chemical Engineering, University of New Hampshire, Durham, NH 03824, United States;3. Institute of High Energy Physics, Chinese Academy of Sciences (CAS), Beijing 100049, PR China;4. Spallation Neutron Source Science Center, Dongguan 523803, PR China;1. CAS Key Laboratory of Low-Carbon Conversion Science and Engineering, Shanghai Advanced Research Institute, Chinese Academy of Sciences, No.99 Haike Road, Zhangjiang Hi-Tech Park, Shanghai 201210, PR China;2. University of the Chinese Academy of Sciences, Beijing 100049, PR China;3. School of Physical Science and Technology, ShanghaiTech University, Shanghai 201203, PR China;1. Department of Materials and Environmental Chemistry, Arrhenius Laboratory, Stockholm University, Svante Arrhenius väg 16 C, SE-106 91 Stockholm, Sweden;2. Institut des Sciences Analytiques (CNRS UMR 5280, ENS de Lyon, UCB Lyon 1), Université de Lyon, 5 rue de la Doua, 69100 Villeurbanne, France;3. Department of Chemistry, University of Cambridge, Lensfield Road, Cambridge CB2 1EW, UK |
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| Abstract: | The shift with pressure has been measured for the σ → σ* excitations for crystalline Mn2(CO)10 and Re2(CO)10 to 120 kbar. The results are interpreted in terms of the relative importance of the effect of compression on stabilization of the bonding vis-a-vis the antibonding orbitals, and the importance of the van der Waals interaction with the surroundings. The π → σ* excitation in Mn2(CO)10 and the σ → π* excitation in Re2(CO)10 are briefly discussed. |
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