Question Bank › Inorganic Chemistry › Organometallic Compounds › ABC26IN1463Among the following species isolobal to CH₂ are A. CpCr(CO)₂ B. CpCu C. Ni(CO)₂ D. Cr(CO)₄ E. Fe(CO)₄ · ABC26IN1463 Subject: Inorganic Chemistry · Chapter: Organometallic Compounds · Topic: Cluster Compounds Wade Rules · Exam: CSIR NET DEC 2017 · Marks: 2 · Difficulty: Medium
Among the following species isolobal to $\mathrm{CH_2}$ are \[ \begin{array}{ll} \text{A. } \mathrm{CpCr(CO)_2} & \text{B. } \mathrm{CpCu} \\ \text{C. } \mathrm{Ni(CO)_2} & \text{D. } \mathrm{Cr(CO)_4} \\ \text{E. } \mathrm{Fe(CO)_4} & {} \end{array} \]
(a) A, C and E
(b) B, C and D
(c) B, C and E
(d) A, B and D
Answer Answer: C ✓ checked by 4AB · confidence high
Explanation CH₂ has two frontier orbitals and two electrons: isolobal with d¹⁰ ML₂ [Ni(CO)₂], d⁸ ML₄ [Fe(CO)₄] and CpCu (11 + 5 = 16 e). Cr(CO)₄ (14 e) and CpCr(CO)₂ (15 e) have different counts. B, C and E.
← Previous in chapter · Chapter list · Next in chapter → Study loop for Organometallic Compounds
Open in whiteboard · Browse this chapter in the app