A phosphine ligand with the general formula PFXH, reports a single mass spec [M+1] peak at70.9862 m/z and NMR coupling constants of JPFPredict the structure of the ligand and sketch the 31P, 19F, and 'H NMR spectra. Be sure toconsider the magnitude of the coupling constants.= 1110 Hz, JPH880 Hz, JFH115 Hz.

Given: PFxHy To predict the structure of the ligand and sketch the P31,F19,H1 NMR spectra.

Answered: A phosphine ligand with the general…

Appl Of Ms Excel In Analytical Chemistry

2nd Edition

ISBN:9781285686691

Author:Crouch

Publisher:Crouch

Chapter12: Spectrochemical Methods

Section: Chapter Questions

Problem 13P

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By using the given 1) electronic absorption spectrum, 2) the Tanabo-Sugano diagram for d3 complex in octahedral ligand field and 3) the absorption/emission spectra, explain the following: a) Ligand field states (to support your explanation show the filling of the orbitals) b) Radiative transitions (to support your explanation refer to fluorescence, phosphorescence and Stokes’ shift)
Describe main features of the evidence of M-CºC characterization and corresponding techniques of this complex (COCL(PPh3)2-III(CF3)2)...?
Show how to use the microanalysis data to determine the number of cod (C8H12) ligands per Pd. C, 33.65%; H, 4.24%; N, 0.00%; Pd, 37.27%.
The ESI mass spectrum (positive mode) of the complexshown below contained a peak envelope with m/z527.9 (100%), 528.9 (15%), 529.9 (46%), 530.9(7%), 531.9 (0.5%). A group of peaks of lowintensity and with spacings of m/z ¼ 1 was alsoobserved around m/z 994. (a) What is the oxidationstate of Cu in the complex? (b) Assign the majorpeak and account for the isotope pattern. (c) Suggesthow the minor peak arises. [The mass spectrum of the complex complex is shown on pic.]
A student dissolved 1.50 g of solid Ni(NO3)2 in 30 mL distilled H2O and subjected it to a hot water bath for 5 minutes. After heating, a light green solution was produced which was then separated into six test tubes. Todetermine the relative stability of Ni2+ complexes, distilled H2O, 3.0 M 1,10-phenanthroline (phen), and 12 M NH3 were used as ligand sources. The observations are as follows (see the attached photo): Compute for the formation constant of [Ni(NH3)6]2+ in test tube 3 given the following equilibrium concentrations: [Ni(H2O)6 2+] = 2.5 x 10-2 M;[NH3] = 0.010 M; [Ni(NH3)6 2+] = 2.1 x 10-5 M.
Elimination of an L ligand (as the first step of a D substitution mechanism) from a charge - neutral NiL4 complex has very little tendency to occur for L = P(OMe3), but for L = PMe3, it occurs almost completely. Since the two ligand species have approximately the same cone angle, what factors are responsible for this difference?
Infrared absorption for terminal CO is at frequencies between 2125 to 1850 cm-1 and for CO bridged at frequencies between 1850 to 1750 cm-1. Why the carbonyl frequencies of the compounds [Cr(CO)6] and [Cr(CO)3dien] are different, 2000 cm-1 and 1800 cm-1 respectively. Why?
Predict whether the following complexes would show Jahn-Teller distortion: Ammonium pentachlorooxidochromate(V), meff = 1.8 mB Potassium hexaiodidomanganate(IV), meff = 3.8 mB Potassium hexachoridocuprate(II), meff = 1.8 mB Hexaaquamanganese(II) chloride, meff = 6.0 mB
According to the IR spectroscopy results of [Co(NH3)5ONO]Cl2 and [Co(NH3)5NO2]Cl2 complexes, the symmetrical and asymmetrical NO stretching vibrations found for one of the complexes (I) are 1315 and 1430 cm-1, respectively, for the other complex (II). these values are 1065 and 1430 cm-1, respectively. According to the data, complex (I) is …………… and complex (II) is ………….
A 3.03-g petroleum specimen was decomposed by wet ashing and subsequently diluted to 500 mL in a volumetric flask. Cobalt was determined by treating 25.00-mL aliquots of this diluted solution as follows: Assume that the Co(II)-ligand chelate obeys Beer’s law, and calculate the percentage of cobalt in the original sample.
Please help me fill the remaining spaces. The spaces marked with NA don't need to be calculate. Name Molecular Weight Amounts used mmol Equivalents M.P or BP (C) Density (g/mL) Indene 116.16 .5mL MP=-2 BP=181-182 .996 Borane-tetrahydrofuran Complex 85.94 2.8mL 1 MP= -108 BP=66 NA 30% Hydrogen Peroxide 34.01 1mL MP= -33 BP=108 NA 3 M NaOH(aq) 40 .7mL MP=318 BP=1390 NA Diethyl Ether 74.12 NA NA NA BP=75-78 .902 Hexanes 86.17 NA NA NA BP=65.5-68.3 .659 Potassium Permanganate 158.03 NA NA NA BP=100 1.0 1-Indanol (Product) 134.13 NA MP=50-54 NA 2-Indanol (Product) Same as Above Same as Above Same as Above NA MP=68-71 NA
To the nearest whole wavenumber, predict the value of delta tet for a tetraquenickel(II) complex and compare its CFSE to the hexaquanickel(II) complex

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