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In the complex, [Ni2(η5-Cp)2(CO)2] the IR stretching frequency appears at 1857 cm-1 (strong) and 1897 cm-1 (weak). The valence electron count and the nature of the M—CO bond respectively are:
  • a)
    16 e-, bridging
  • b)
    17 e-, bridging
  • c)
    18 e-, terminal  
  • d)
    18 e-, bridging
Correct answer is option 'C'. Can you explain this answer?
Most Upvoted Answer
In the complex, [Ni2(η5-Cp)2(CO)2] the IR stretching frequency ap...
Stretching frequency of terminal CO varies from 2143 to 1850 cm^-1 and the valence electron count is 2×10+5×2+2×2+2=36. means 18 electrons per metal.....so...oprionC is correct
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Community Answer
In the complex, [Ni2(η5-Cp)2(CO)2] the IR stretching frequency ap...
NH2CH2CH2NH2)4]2+, the oxidation state of nickel is +2.

Explanation:
Each NH2CH2CH2NH2 molecule is a bidentate ligand that can donate two electrons to the central nickel ion. There are four of these ligands, so a total of eight electrons are donated to the nickel ion. The nickel ion itself has a 2+ charge, so the overall charge on the complex is 2+. Therefore, the oxidation state of nickel in this complex is +2.
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In the complex, [Ni2(η5-Cp)2(CO)2] the IR stretching frequency appears at 1857 cm-1 (strong) and 1897 cm-1 (weak). The valence electron count and the nature of the M—CO bond respectively are:a)16 e-, bridgingb)17 e-, bridgingc)18 e-, terminal d)18 e-, bridgingCorrect answer is option 'C'. Can you explain this answer?
Question Description
In the complex, [Ni2(η5-Cp)2(CO)2] the IR stretching frequency appears at 1857 cm-1 (strong) and 1897 cm-1 (weak). The valence electron count and the nature of the M—CO bond respectively are:a)16 e-, bridgingb)17 e-, bridgingc)18 e-, terminal d)18 e-, bridgingCorrect answer is option 'C'. Can you explain this answer? for Chemistry 2024 is part of Chemistry preparation. The Question and answers have been prepared according to the Chemistry exam syllabus. Information about In the complex, [Ni2(η5-Cp)2(CO)2] the IR stretching frequency appears at 1857 cm-1 (strong) and 1897 cm-1 (weak). The valence electron count and the nature of the M—CO bond respectively are:a)16 e-, bridgingb)17 e-, bridgingc)18 e-, terminal d)18 e-, bridgingCorrect answer is option 'C'. Can you explain this answer? covers all topics & solutions for Chemistry 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for In the complex, [Ni2(η5-Cp)2(CO)2] the IR stretching frequency appears at 1857 cm-1 (strong) and 1897 cm-1 (weak). The valence electron count and the nature of the M—CO bond respectively are:a)16 e-, bridgingb)17 e-, bridgingc)18 e-, terminal d)18 e-, bridgingCorrect answer is option 'C'. Can you explain this answer?.
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