Homework Answers
Answer. X2, Y2, Z2, XY, XZ, YZ - Raman active mode
so, for C4v symmetry the raman active modes are - A1, B1, B2, E
Answer. X, Y, Z - Ir active vibration
The vibrational modes is - Au
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Under Cav symmetry, which irreducible representations, if any, correspond to a Raman active vibration? OA Given...
Under Can symmetry, which irreducible representations, if any, correspond to a Raman active vibration? ロロロロロロ
Under Can symmetry, which irreducible representations, if any, correspond to a Raman active vibration? ロロロロロロ
Given a C4h symmetry, determine which of the irreducible representations, if any, correspond to an IR...
Given a C4h symmetry, determine which of the irreducible representations, if any, correspond to an IR active vibration. Answers: Ag Bu Bg Eu Eg Au
Through reducible and irreducible representations, determine the number of peaks in the IR and Raman spectra...
Through reducible and irreducible representations, determine the
number of peaks in the IR and Raman spectra due to Re-Cl stretching
for PhReCl4, include the correct symmetry labels (e.g. A1, B2,
etc.)
Through reducible and irreducible representations, determine the number of peaks in the IR and Raman spectra due to Re-Cl stretching for PhReCl, include the correct symmetry labels (e.g. A1, CI.... B2, etc.). (8 pts) ci-Reci
Use Web Mo for (pyrazine (C4H4N2)) Point group is D2h (a) Identify and clearly sketch by hand the symmetry elements...
Use Web Mo for (pyrazine (C4H4N2)) Point group
is D2h
(a) Identify and clearly sketch by hand the symmetry elements of the molecule. (b) Calculate the number of degrees of freedom and number of vibrations for the molecule. (c) Determine how the degrees of freedom of the molecule are distributed amongst the irreducible representations of the point group show clearly all your working. (d) Subtract the translations and rotations and hence determine how the normal vibrations of the molecule are...
4. The planar molecule SO3 shown below has Dzh symmetry. Oos- a) Determine the irreducible representations...
4. The planar molecule SO3 shown below has Dzh symmetry. Oos- a) Determine the irreducible representations of the oxygen o orbital combinations. b) Construct a qualitative MO diagram for SO3 using the oxygen o orbitals and the 3s and 3p valence orbitals on the sulphur. c) Which sulphur orbital is not involved in o bonding with the oxygens? d) Determine the irreducible representations of the six oxygen a orbital combinations. e) Which d orbitals on sulphur can undergo i bonding...
For BF3 a) Which point group does it belong to? b) How many fundamental vibrations are...
For BF3 a) Which point group does it belong to? b) How many fundamental vibrations are expected? c) To what irreducible representations do these belong? d) What vibrations are infrared active and which are Raman active? e) How many lines are coincident in the IR and Raman? f) To which symmetry species do the following vibrations belong? i) symmetric stretch ii) asymmetric stretch
Hello, can you help me with any of these questions please? Any help would be much appreciated. Using diagrams indic...
Hello, can you help me with any of these questions please? Any
help would be much appreciated.
Using diagrams indicate the symmetry elements present for each of the two isomers cis- and trans-[Mo(CO)(L)2] (IV and V). Assign the point groups of IV and V. Taking the four CO triple bonds of the carbonyl ligands (Si -S4) as your basis set, work out the reducible representation spanned by these bonds for the cis isomer V, below. IK OEC O SE Using...
need help please 1. Vibrational spectroscopy: Bond-stretching vibrations. Sadly, labels have fallen off of two vials...
need help please
1. Vibrational spectroscopy: Bond-stretching vibrations. Sadly, labels have fallen off of two vials containing manganese(I) carbonyl coordination complexes. Thus, a chemist is unsure which vial contains [Mn(CO)sCl] and which contains the sodium salt of trans-[Mn(CO)4C2]. Not easily deterred the chemist acquires an IR spectrum of the contents of one of the vials. Below are the structures of the two possible complexes (left) and the CO-stretching region of the IR spectrum (right) [Mn(Co),CI] trans-[Mn(Co).CIJ10 Cl CI CI 2200...
Problems 85 3.9 Which of the following species contain a C4 axis and 3.27 Six of the nine vibrati...
please answer highlighted questions
Problems 85 3.9 Which of the following species contain a C4 axis and 3.27 Six of the nine vibrational degrees of freedom of SiF are IR active. Why are IR absorptions observed only at 389 and 1030 cm for this compound? 3.10 How many mirror planes do each of the following molecules contain: (a) SF" (b) H2S; (c) SF" (d) 3.28 AICİ6 belongs to the D2hpoint group: SOF: () SO () SO,? 3.11 (a) What structure...
Under Can symmetry, which irreducible representations, if any, correspond to a Raman active vibration? ロロロロロロ
Through reducible and irreducible representations, determine the
number of peaks in the IR and Raman spectra due to Re-Cl stretching
for PhReCl4, include the correct symmetry labels (e.g. A1, B2,
etc.)
Through reducible and irreducible representations, determine the number of peaks in the IR and Raman spectra due to Re-Cl stretching for PhReCl, include the correct symmetry labels (e.g. A1, CI.... B2, etc.). (8 pts) ci-Reci
Use Web Mo for (pyrazine (C4H4N2)) Point group
is D2h
(a) Identify and clearly sketch by hand the symmetry elements of the molecule. (b) Calculate the number of degrees of freedom and number of vibrations for the molecule. (c) Determine how the degrees of freedom of the molecule are distributed amongst the irreducible representations of the point group show clearly all your working. (d) Subtract the translations and rotations and hence determine how the normal vibrations of the molecule are...
4. The planar molecule SO3 shown below has Dzh symmetry. Oos- a) Determine the irreducible representations of the oxygen o orbital combinations. b) Construct a qualitative MO diagram for SO3 using the oxygen o orbitals and the 3s and 3p valence orbitals on the sulphur. c) Which sulphur orbital is not involved in o bonding with the oxygens? d) Determine the irreducible representations of the six oxygen a orbital combinations. e) Which d orbitals on sulphur can undergo i bonding...
Hello, can you help me with any of these questions please? Any
help would be much appreciated.
Using diagrams indicate the symmetry elements present for each of the two isomers cis- and trans-[Mo(CO)(L)2] (IV and V). Assign the point groups of IV and V. Taking the four CO triple bonds of the carbonyl ligands (Si -S4) as your basis set, work out the reducible representation spanned by these bonds for the cis isomer V, below. IK OEC O SE Using...
need help please
1. Vibrational spectroscopy: Bond-stretching vibrations. Sadly, labels have fallen off of two vials containing manganese(I) carbonyl coordination complexes. Thus, a chemist is unsure which vial contains [Mn(CO)sCl] and which contains the sodium salt of trans-[Mn(CO)4C2]. Not easily deterred the chemist acquires an IR spectrum of the contents of one of the vials. Below are the structures of the two possible complexes (left) and the CO-stretching region of the IR spectrum (right) [Mn(Co),CI] trans-[Mn(Co).CIJ10 Cl CI CI 2200...
please answer highlighted questions
Problems 85 3.9 Which of the following species contain a C4 axis and 3.27 Six of the nine vibrational degrees of freedom of SiF are IR active. Why are IR absorptions observed only at 389 and 1030 cm for this compound? 3.10 How many mirror planes do each of the following molecules contain: (a) SF" (b) H2S; (c) SF" (d) 3.28 AICİ6 belongs to the D2hpoint group: SOF: () SO () SO,? 3.11 (a) What structure...
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