Platinumolefin bond strength in Pt(PPh3)2(CH2CH2) and Pt(PPh3)2 {C(CN)2C(CN)2} |
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| Authors: | A Evans CT Mortimer RJ Puddephatt |
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| Institution: | Department of Chemistry, University of Keele, Keele, ST5 5BG Great Britain;Department of Chemistry, University of Liverpool, Liverpool, L69 3BX Great Britain |
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| Abstract: | The enthalpy of the reaction: Pt(PPh3)2 (CH2CH2)(cryst.) + C(CN)2C(CN)2 (g) → Pt(PPh3)2 {C(CN)2C(CN)2}(cryst.) + CH2 CH2 (g) has been determined as ΔH298=?155.8±8.0 kJ·mol?1, from solution calorimetry. The interpretation, that the platinumethylene bond is much weaker than the platinumtetracyanoethylene bond, is contrary to conclusions drawn recently from electron emission spectroscopic studies, but in agreement with available structural data. |
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| Keywords: | To whom inquiries should be sent |
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