Question

An example of a sigma bonded organometallic compound is :
[2017]
(a) Grignard's reagent (b) Ferrocene
(c) Cobaltocene (d) Ruthenocene

Answer 1

Among the given compounds, (a) Grignard's reagent is considered as a sigma bonded organometallic compound.

Explanation:

• To identify which compound is sigma bonded organometallic compound, the structure of each compound given in the options must be analyzed.
• Accordingly, in the case of compounds such as Ferrocene, Cobaltocene, and Ruthenocene, the structure is such that the central metal atom is sandwiched between two cyclopentadiene rings.
• Due to such an arrangement, these compounds have both sigma and pi bonding.
• As these three compounds are composed of sigma and pi bond, the Grignard's reagent is considered an example of a sigma bonded organometallic compounds.

Learn more about such concept

An organometallic compound on analysis was found to contain, C = 64.4%, H = 5.5% and Fe = 29.9%. Determine its empirical formula (At mass of Fe = 56 u).

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Answer 2

$\Large\tt Grignand's \: \: Reagent$