13-4 Ligands in Organometallic Chemistry
13-4 Ligands in Organometallic Chemistry
13-4 Ligands in Organometallic Chemistry
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<strong>13</strong>-6 Complexes Conta<strong>in</strong><strong>in</strong>g M-C, M=C and M≡C Bond<br />
; carbene complexes<br />
Olef<strong>in</strong> metathesis<br />
Highly nucleophilic reagent<br />
X-ray; Cr-C, C-O<br />
NMR; RT (one signal), low T (two peak)<br />
Why?<br />
C-O 143 pm<br />
C=O 116pm<br />
Highly electronegative atom can participate <strong>in</strong> the π bond<strong>in</strong>g → stabilize