(b) The carbon-carbon bond length of coordinated ethylene in Pt(PPh3)2(1²-C2H4), F, is 1.44 Å, as determined by X-ray crystal structure analysis. The carbon-carbon bond length of free (uncoordinated) ethylene is 1.34 Å. Rationalise this difference in bond length. Sketch relevant molecular orbitals.

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(b) The carbon-carbon bond length of coordinated ethylene in
Pt(PPh3)2(1²-C2H4), F, is 1.44 Å, as determined by X-ray crystal structure analysis.
The carbon-carbon bond length of free (uncoordinated) ethylene is 1.34 Å.
Rationalise this difference in bond length. Sketch relevant molecular orbitals.
Transcribed Image Text:(b) The carbon-carbon bond length of coordinated ethylene in Pt(PPh3)2(1²-C2H4), F, is 1.44 Å, as determined by X-ray crystal structure analysis. The carbon-carbon bond length of free (uncoordinated) ethylene is 1.34 Å. Rationalise this difference in bond length. Sketch relevant molecular orbitals.
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