4. (a) Chemical shift (8) value of CH and CH3 proton in [Al(acac)3] are 1.99 and 5.47 ppm, respectively whereas in [Fe(acac)3] the 8 values of CH and CH3 proton are shifted to more downfield region i.e, 2.18 and 5.52 ppm, respectively where 'acac' denotes acetylacetonate anion. Explain the observation. (b) The ¹F -NMR spectrum of SF4 consists of two triplets of equal peak area. Suggest the structure of the compound with justification.
Analyzing Infrared Spectra
The electromagnetic radiation or frequency is classified into radio-waves, micro-waves, infrared, visible, ultraviolet, X-rays and gamma rays. The infrared spectra emission refers to the portion between the visible and the microwave areas of electromagnetic spectrum. This spectral area is usually divided into three parts, near infrared (14,290 – 4000 cm-1), mid infrared (4000 – 400 cm-1), and far infrared (700 – 200 cm-1), respectively. The number set is the number of the wave (cm-1).
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It is the analysis of the structure of cyclohexaone using IR data interpretation.
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Interpretation of anisole using IR spectrum obtained from IR analysis.
IR Spectroscopy
Infrared (IR) or vibrational spectroscopy is a method used for analyzing the particle's vibratory transformations. This is one of the very popular spectroscopic approaches employed by inorganic as well as organic laboratories because it is helpful in evaluating and distinguishing the frameworks of the molecules. The infra-red spectroscopy process or procedure is carried out using a tool called an infrared spectrometer to obtain an infrared spectral (or spectrophotometer).
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![4.
(a) Chemical shift (8) value of CH and CH3 proton in [Al(acac)3] are
1.99 and 5.47 ppm, respectively whereas in [Fe(acac)3] the 8
values of CH and CH3 proton are shifted to more downfield
region i.e, 2.18 and 5.52 ppm, respectively where 'acac' denotes
acetylacetonate anion. Explain the observation.
(b) The ¹F -NMR spectrum of SF4 consists of two triplets of equal
peak area. Suggest the structure of the compound with
justification.](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F95278144-b5d7-42f9-9202-e3883e6ae0ec%2F5dd4d8e7-9638-4169-8453-4da0b2bead9d%2Fmbxbbs6_processed.jpeg&w=3840&q=75)
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