Determine the structure of the molecule, provide the missing splitting pattern, and label which hydrogens correspond to which chemical shifts.
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Determine the structure of the molecule, provide the missing splitting pattern, and label which hydrogens correspond to which chemical shifts.
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- a.) What is the resonance frequency of a proton in a magnetic field of 14.6 T? Ans = _______ MHz b.) The rotational Raman spectrum of 35Cl2 (m(35Cl) = 34.9688 u) shows a series of Stokes lines separated by 0.9752 cm-1 and a similar series of anti Stokes lines. Calculate the bond length of the molecule. Ans = ______ AngstromsThe lowest energy transition (J=0 --> J=1) in teh pure rotational spectrum of 12C16O occures ar 3.8026 cm-1. Calculate the rotational constant, B in Joules (1cm-1 = 100hc = 1.987*10-23 J)Determine the constituent irreps of 12-dimentional reducible representations for the vibration of NH3.
- 2.2 You know that the wavenumbers of the rotational transition J = 1← 0 for 1H35Cl and 2H35Cl are 20.8784 and 10.7840cm-1, respectively. Accurate atomic masses are 1.007825 and 2.0140 for 1H and 2H, respectively. The mass of 35Cl is 34.96885. Conclude based on this information that the bond lengths are the sameFor the isomers of C5H10: (a) find # signals, chem shift ranges, integration, splitting (b) match the isomer to the spectrumFrom the vib-rot spectrum of 1HCl 35, determine P and R branches and how they are related to the theory , e.g. rotational transitions
- If chloroform (trichloromethane) exhibits an infrared peak at 3018cm−1 due to C–H stretching vibration, calculate wavenumber of the absorption band corresponding to C–D stretching vibration in deuterochloroform (experimental value 2253cm−1).The absorption associated with a certain transition begins at 167 nm, peaks sharply at 200 nm, and ends at 250 nm. The maximum value of the molar absorption coefficient is 3.35 × 104 dm3 mol−1 cm−1. Estimate the integrated absorption coefficient of the transition assuming an inverted parabolic lineshape (Fig. 11.1).Suppose that the wavenumber of the J = 1 ← 0 rotational transition of 1H79Br considered as a rigid rotor was measured to be 17.89 cm-1, what is(a) the moment of inertia of the molecule? ______ kg-m2(b) the bond length? ______ Angstroms(Given the isotopic masses:(m(79Br) = 78.9183 amu, m(81Br) = 80.9163 amu)
- Which of the following transitions are allowed by selection rules? Plesase in each case explain the answer by step. (1) 1S0 → 3P0 (2) 3D3 → 4D1/2 (3) 3S3 → 3P1 (4) 3G3 → 3G4 (5) 2F5/2 → 2P1/21. The force constant for the diatomic H2 is 575 N m-1. Calculate the fundamental vibrationalfrequency (i.e., u = 0).2. Calculate the force constant for the diatomic H35Cl given that the infrared spectrum exhibitsa single line at 2886 cm-1A photon of wavenumber 100 cm-1 has a wavelength of