IIT JAM Exam > IIT JAM Questions > In metal- carbonyl complexes, the p- back bon...
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In metal- carbonyl complexes, the p- back bonding is
- a)pπ – dπ type
- b)dπ – dπ type
- c)dπ – π* type
- d)dπ – σ* type
Correct answer is option 'C'. Can you explain this answer?
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In metal- carbonyl complexes, the p- back bonding isa)pπ– d...
Π backbonding, also called π backdonation, is a concept from chemistry in which electrons move from an atomic orbital on one atom to an appropriate symmetry antibonding orbital on a π-acceptor ligand. Electrons from the metal are used to bond to the ligand, in the process relieving the metal of excess negative charge.
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In metal- carbonyl complexes, the p- back bonding isa)pπ– d...
Understanding p-Back Bonding in Metal-Carbonyl Complexes
Metal-carbonyl complexes are significant in coordination chemistry, primarily due to their unique electronic properties. One important aspect of these properties is the phenomenon known as p-back bonding.
What is p-Back Bonding?
- P-back bonding refers to the electron donation from filled metal d-orbitals to empty p-orbitals of the CO ligand.
- This process enhances the stability of the metal-carbonyl complex and helps in lowering the CO stretching frequency.
Role of d * Orbitals
- In metal-carbonyl complexes, the metal center typically has d-electrons that can participate in back donation.
- The d * orbitals, which are the higher-energy d-orbitals, are crucial for this bonding.
Why d * Type?
- The d * orbitals have the appropriate symmetry and energy to overlap effectively with the π* (pi-star) orbitals of carbon monoxide.
- This overlap allows for effective electron transfer from the metal to the ligand, stabilizing the overall complex.
Conclusion
- Therefore, in metal-carbonyl complexes, the p-back bonding mechanism primarily involves d * type orbitals.
- This contributes significantly to the properties and reactivity of these complexes, making option 'C' the correct choice.
Understanding these concepts is vital for comprehending how metal-carbonyl complexes function in various chemical processes and applications.
Metal-carbonyl complexes are significant in coordination chemistry, primarily due to their unique electronic properties. One important aspect of these properties is the phenomenon known as p-back bonding.
What is p-Back Bonding?
- P-back bonding refers to the electron donation from filled metal d-orbitals to empty p-orbitals of the CO ligand.
- This process enhances the stability of the metal-carbonyl complex and helps in lowering the CO stretching frequency.
Role of d * Orbitals
- In metal-carbonyl complexes, the metal center typically has d-electrons that can participate in back donation.
- The d * orbitals, which are the higher-energy d-orbitals, are crucial for this bonding.
Why d * Type?
- The d * orbitals have the appropriate symmetry and energy to overlap effectively with the π* (pi-star) orbitals of carbon monoxide.
- This overlap allows for effective electron transfer from the metal to the ligand, stabilizing the overall complex.
Conclusion
- Therefore, in metal-carbonyl complexes, the p-back bonding mechanism primarily involves d * type orbitals.
- This contributes significantly to the properties and reactivity of these complexes, making option 'C' the correct choice.
Understanding these concepts is vital for comprehending how metal-carbonyl complexes function in various chemical processes and applications.
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In metal- carbonyl complexes, the p- back bonding isa)pπ– dπtypeb)dπ– dπtypec)dπ– π* typed)dπ– σ* typeCorrect answer is option 'C'. Can you explain this answer? for IIT JAM 2025 is part of IIT JAM preparation. The Question and answers have been prepared according to the IIT JAM exam syllabus. Information about In metal- carbonyl complexes, the p- back bonding isa)pπ– dπtypeb)dπ– dπtypec)dπ– π* typed)dπ– σ* typeCorrect answer is option 'C'. Can you explain this answer? covers all topics & solutions for IIT JAM 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for In metal- carbonyl complexes, the p- back bonding isa)pπ– dπtypeb)dπ– dπtypec)dπ– π* typed)dπ– σ* typeCorrect answer is option 'C'. Can you explain this answer?.
In metal- carbonyl complexes, the p- back bonding isa)pπ– dπtypeb)dπ– dπtypec)dπ– π* typed)dπ– σ* typeCorrect answer is option 'C'. Can you explain this answer? for IIT JAM 2025 is part of IIT JAM preparation. The Question and answers have been prepared according to the IIT JAM exam syllabus. Information about In metal- carbonyl complexes, the p- back bonding isa)pπ– dπtypeb)dπ– dπtypec)dπ– π* typed)dπ– σ* typeCorrect answer is option 'C'. Can you explain this answer? covers all topics & solutions for IIT JAM 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for In metal- carbonyl complexes, the p- back bonding isa)pπ– dπtypeb)dπ– dπtypec)dπ– π* typed)dπ– σ* typeCorrect answer is option 'C'. Can you explain this answer?.
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