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Question

The hapticity of cycloheptatriene, $(C_7H_8)$, in $Mo(C_7H_8)(CO)_3$ is ______________.

Hapticity of Cycloheptatriene in $Mo(C_7H_8)(CO)_3$ Complex

Hapticity describes the number of atoms in a ligand that are directly bonded to a central metal atom. It is denoted using the Greek letter eta ($\eta$) followed by a number indicating the count of bonded atoms.

In the complex $Mo(C_7H_8)(CO)_3$, the ligand is cycloheptatriene ($C_7H_8$). Based on the context provided, the hapticity of cycloheptatriene in this specific complex is determined to be 6.

  • The notation for this hapticity is $\eta^6$.
  • This signifies that 6 carbon atoms of the cycloheptatriene ring are coordinated to the Molybdenum (Mo) metal center.

Therefore, the cycloheptatriene ligand acts as a $\eta^6$ ligand in the $Mo(C_7H_8)(CO)_3$ complex.

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Important Questions from Organometallic Chemistry

  1. The reaction that proceeds through an oxidative addition followed by a reductive elimination is
    [Given: Atomic numbers Ni = 28, Ta = 73, Zr = 40, Pt = 78]

  2. The heptacity of allyl and Cp and the ligation mode of NO in the thermodynamically stable complexes 
    $[(\eta^x-allyl)Ru(CO)_2(NO)]$ and $[(\eta^y-Cp)Ru(CO)_2(NO)]$, 
    respectively, are 
    (The heptacity of allyl and Cp are denoted by $\eta^x$ and $\eta^y$, respectively.)

  3. The bond angle (Ti-C-C) in the crystal structure of

    is severely distorted due to

  4. The major product of the following reaction sequence is

  5. Decarbonylation reaction of $[cis-(CH_3CO)Mn(^{13}CO)(CO)_4]$ yields X,Y and Z, where $X =[(CH_3)Mn(CO)_5]$; $Y = [cis-(CH_3)Mn(^{13}CO)(CO)_4]$; $Z = [trans-(CH_3)Mn(^{13}CO)(CO)_4]$ 

    The molar ratio of the products(X : Y : Z) in this reaction is

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