*The drug Nipride, Naz[Fe(CN)5NO], is an inorganic complex which is used as a source of NO to lower blood pressure during surgery. a. For the complex [Fe(CN)5NO]²-, draw the orbital diagram for the d-orbitals, indicate whether the complex is high-spin or low-spin, and give the number of unpaired electrons. b. The [Fe(CN)5NO]²- complex is red-violet in color (“ruby red"), while the similar complex [Fe(CN)6]³- is red-orange in color (“bright red"). The CN- ligand is a strong-field ligand. By comparison, the NO ligand is: much weaker slightly weaker slightly stronger much stronger c. Briefly explain your choice using the language of crystal field theory.

Chemistry: Principles and Practice
3rd Edition
ISBN:9780534420123
Author:Daniel L. Reger, Scott R. Goode, David W. Ball, Edward Mercer
Publisher:Daniel L. Reger, Scott R. Goode, David W. Ball, Edward Mercer
Chapter19: Transitition Metals, Coordination Chemistry And Metallurgy
Section: Chapter Questions
Problem 19.51QE
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*The drug Nipride, Naz[Fe(CN)5NO], is an inorganic complex which is used as a source of
NO to lower blood pressure during surgery.
a. For the complex [Fe(CN)5NO]²-, draw the orbital diagram for the d-orbitals,
indicate whether the complex is high-spin or low-spin, and give the number of
unpaired electrons.
b. The [Fe(CN)5NO]²- complex is red-violet in color (“ruby red"), while the similar
complex [Fe(CN)«]3- is red-orange in color (“bright red"). The CN- ligand is a
strong-field ligand. By comparison, the NO ligand is:
much weaker
slightly weaker
slightly stronger
much stronger
c. Briefly explain your choice using the language of crystal field theory.
Transcribed Image Text:*The drug Nipride, Naz[Fe(CN)5NO], is an inorganic complex which is used as a source of NO to lower blood pressure during surgery. a. For the complex [Fe(CN)5NO]²-, draw the orbital diagram for the d-orbitals, indicate whether the complex is high-spin or low-spin, and give the number of unpaired electrons. b. The [Fe(CN)5NO]²- complex is red-violet in color (“ruby red"), while the similar complex [Fe(CN)«]3- is red-orange in color (“bright red"). The CN- ligand is a strong-field ligand. By comparison, the NO ligand is: much weaker slightly weaker slightly stronger much stronger c. Briefly explain your choice using the language of crystal field theory.
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