(c) 'H NMR spectrum; Iron and Chlorine are NMR inactive, 31P, 1 = ½ 100% abundant. PCI, Cl Fe PCI, (d) 13C NMR spectrum of 99.5% d' methanol (CD3OD), D has I = 1
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Predict the following NMR spectra. Include details such as the multiplicity of the signals and which couplings would be expected.
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- Vanadium has two isotopes (50V, 0.25%; 51V,99.75%). The EPR spectrum of an aqueous solutionof [VO(OH2)5]2+ shows an 8-line pattern, andg-values of gzz=1.932, gxx = 1.979 and gyy=1.979were determined. What can you deduce from the data?How many different phosphorus chemical environments are there for trans-[RhClCO(PPh3)2] and cis -[RhClCO(PPh3)2] complexes in 31P- NMR spectra?The NMR spectra for compound 1 were acquired in a 7.5 mg / 0.6 mL solution ofCDCl3 The 1H and 13C peaks are also listedbelow. Provide a analysis of the NMR spectra for compound 1 include rationalisation of COSY1H NMR (400 MHz, CDCl3) δ 7.73 (d, J = 9.5 Hz, 1H), 7.56 (ddd, J = 8.5, 7.5, 1.6 Hz, 1H),7.51 (dd, J = 7.5, 1.6 Hz, 1H), 7.36 (d, J = 8.5 Hz, 1H), 7.30 (dd, J = 8.5, 7.5 Hz, 1H), 6.45(d, J = 9.5 Hz, 1H).13C NMR (101 MHz, CDCl3) δ 160.79, 154.09, 143.43, 131.85, 127.87, 124.44, 118.86,116.94, 116.74.
- The NMR spectra for compound 1 were acquired in a 7.5 mg / 0.6 mL solution ofCDCl3 .. The 1H and 13C peaks are also listedbelow. Provide a full analysis of the NMR spectra for compound 1.1H NMR (400 MHz, CDCl3) δ 7.73 (d, J = 9.5 Hz, 1H), 7.56 (ddd, J = 8.5, 7.5, 1.6 Hz, 1H),7.51 (dd, J = 7.5, 1.6 Hz, 1H), 7.36 (d, J = 8.5 Hz, 1H), 7.30 (dd, J = 8.5, 7.5 Hz, 1H), 6.45(d, J = 9.5 Hz, 1H).13C NMR (101 MHz, CDCl3) δ 160.79, 154.09, 143.43, 131.85, 127.87, 124.44, 118.86,116.94, 116.74. Include: correct assignment of NMR spectra of 1H spectra. correct rationalisation of 1H spectrumThe NMR spectra for compound 1 were acquired in a 7.5 mg / 0.6 mL solution ofCDCl3 The 1H and 13C peaks are also listedbelow. Provide a full analysis of the NMR spectra for compound 1.1H NMR (400 MHz, CDCl3) δ 7.73 (d, J = 9.5 Hz, 1H), 7.56 (ddd, J = 8.5, 7.5, 1.6 Hz, 1H),7.51 (dd, J = 7.5, 1.6 Hz, 1H), 7.36 (d, J = 8.5 Hz, 1H), 7.30 (dd, J = 8.5, 7.5 Hz, 1H), 6.45(d, J = 9.5 Hz, 1H).13C NMR (101 MHz, CDCl3) δ 160.79, 154.09, 143.43, 131.85, 127.87, 124.44, 118.86,116.94, 116.74.Sketch the form of the 19F-NMR spectra of a natural sample of 10BF4- and 11BF4-.
- The molecular ion region of the spectrum of biphenyl. M1 is observed at m/z 154 and the intensity of M 1 1 is 12.9% of M1. What formulas of the type CnHxOyNz are consistent with the spectrum?Analysis of a sweet-smelling, neutral compound of carbon, hydrogen and oxygen produced the following results: %C = 54.5; %H = 9.1. From its mass spectrum, the molecular ion had a mass/charge ratio of 88. Its infra-red spectrum showed a prominent peak at 1735 cm–1. Figure below shows the NMR spectrum of the compound. Suggest a structural Formula for this compound.Account for the presence of the following peak in the mass spectrum of hexanoic acid, CH3(CH2)4COOH. Q.) A series of peaks differing by 14 amu at m/z 45, 59, 73, and 87
- Furosemide (MM: 330.7 g/mol) is a diuretic derived from anthranilic acid, this diuretic is used in the treatment of kidney disease, hypertension, liver cirrhosis, and others. Furosemide in alkaline dissolution has an absorption spectrum with a maximum peak centered at 271 nm. The analysis of a furosemide tablet was performed by dissolving its content in a 0.1 mol L-1 NaOH solution and this dissolution completed for a volume of 100 mL, with 1.0 mL of this dissolution was transferred to 50.0 ml and made up to volume with the same solvent. It is dissolution has an absorbance value of 0.475 to 271 nm, with a 1.0 cuvette cm of optical path. At this wavelength, a series of dissolutions of a Standard substance of this drug has the following absorbance measurements (1.0 cm bucket): a) Demonstrate whether the experimental data are in accordance with Bee's law (b) Determine absorptivity and molar absorptivity (c) Determine the amount of drug in the tablet in mg and in ppm (d) Determine the…Given the information about the unknown: Unknown: MP: 101-106 oC White solid IR: 2837, 1701, 1602, 1391, 1139 cm-1 ** Using the Reference sheet, The IR and the given H-NMR, and C-NMR. Deduce, what the unknown is. Please give the name of uknownPropose a structure for C4H10 The 1H NMR data is as follows [splitting, chemical shift (integration)]: singlet, d 1.28 (9H) and singlet, d 1.35 (1H). Look carefully at what the integration and splitting tell you.