13. What is the point group for the following? (3 pts.) Sketch out the molecules. (3...
13. What is the point group for the following? (3 pts.) Sketch
out the molecules. (3 pts.) (Total: 6pts.) (show at least 3
symmetry elements that lead you to the point group)
a. What is the symmetry point group for
cis-PtBr2Cl2-2?
b. What is the symmetry point group for ClO4- ion?
c. What is the symmetry point group for TeF5-?
Homework Answers
![. Ans. @ cis (Pt Bradle] ² Pt Br Point group : Ev Symmetry elements: C2,25v, Sul ; E. Pt. Bar kad 3 a Gu is the plane of the](http://img.homeworklib.com/questions/7ec3e570-0932-11ec-818c-8798363a787b.png?x-oss-process=image/resize,w_560)
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13. What is the point group for the following? (3 pts.) Sketch
out the molecules. (3...
1)Sketch symmetry elements that are present in the following compounds. What is the point group? 2)For...
1)Sketch symmetry elements that
are present in the following compounds. What is the point
group?
2)For the following molecules,
determine the number of IR active C-O stretching vibrations. Which
point group is each molecule?
Determine the symmetry elements and the Point Group of the following molecules: HCN, SO3, PF5
Determine the symmetry elements and the Point Group of the following molecules: HCN, SO3, PF5
2. (3 pts) Determine the symmetry elements and assign the point group of: a. trans-1,2-dichloroethylene b....
2. (3 pts) Determine the symmetry elements and assign the point group of: a. trans-1,2-dichloroethylene b. H30+ c. formaldehyde, H2CO
Assign the point groups of the following molecules (you may have to look up their structures). List all symmetry el...
Assign the point groups of the following molecules (you may have to look up their structures). List all symmetry elements and draw a sketch of each symmetry operation, you may omit repetitive drawings per structure. [10 pts] trans-N2F2 SCIF H30 HCI SOCl2
All parts please!! 1. Determine the point group for each of the following molecules. If the...
All parts please!!
1. Determine the point group for each of the following molecules. If the molecule has a C,axis, draw and label the axis on the molecular structure. Similarly, draw all mirror planes that are present in the molecule. Feel free to draw multiple copies of a molecule to show the symmetry elements more clearly. NH3 b) Br NH / 111111 -Cr F- Cr. OH OH2 ço e) Çih f) CO IZ ОН CO g) F.
Draw the molecules cis-[PtCl2(NH3)2] versus trans-[PtCl2(NH3)2]. a) If you assume the NH3 groups ...
Draw the molecules cis-[PtCl2(NH3)2] versus trans-[PtCl2(NH3)2]. a) If you assume the NH3 groups rotate freely and the out of plane hydrogens do not lower the symmetry, what is the point group symmetry? b) If the NH3 groups do not rotate freely, what are the possible point groups? I have the drawn molecules just unsure how to find the point groups.
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...
a. Name 3 (out of 11, not including the identity) symmetry elements in the molecule cyclopropane. Hн b. What is the...
a. Name 3 (out of 11, not including the identity) symmetry elements in the molecule cyclopropane. Hн b. What is the point group?
11. The hydration energy for [Cr(H20)is-1850 kJ/mole. (a) Using data in Table 8.4 and/or 8.5, det...
11. The hydration energy for [Cr(H20)is-1850 kJ/mole. (a) Using data in Table 8.4 and/or 8.5, determine Ao for the complex in kJ/mole. (a) Now draw the electronic configuration for the ion and determine the CFSE in kJ/mole [pairing energy- 23,500 cm'1 (c) What is the % contribution to the hydration energy of the CFSE ? 12. Assign each of the following molecules to a point group Fe NH2 Pt NH2 Br Br 13. List all the symmetry operations generated by...
13. (9 pts) (a) Draw out the general cis and trans elements of the yeast Gall...
13. (9 pts) (a) Draw out the general cis and trans elements of the yeast Gall locus in the absence of Galactose (Gall OFF, - Galactose). (b) What is one conceptual aspect of this regulation that is distinct from how prokaryotes tend to regulate gene expression? (c) In class, we talked about the activator bypass experiments. Draw out one experiment and the conclusion from this series of experiments.
1)Sketch symmetry elements that
are present in the following compounds. What is the point
group?
2)For the following molecules,
determine the number of IR active C-O stretching vibrations. Which
point group is each molecule?
2. (3 pts) Determine the symmetry elements and assign the point group of: a. trans-1,2-dichloroethylene b. H30+ c. formaldehyde, H2CO
Assign the point groups of the following molecules (you may have to look up their structures). List all symmetry elements and draw a sketch of each symmetry operation, you may omit repetitive drawings per structure. [10 pts] trans-N2F2 SCIF H30 HCI SOCl2
All parts please!!
1. Determine the point group for each of the following molecules. If the molecule has a C,axis, draw and label the axis on the molecular structure. Similarly, draw all mirror planes that are present in the molecule. Feel free to draw multiple copies of a molecule to show the symmetry elements more clearly. NH3 b) Br NH / 111111 -Cr F- Cr. OH OH2 ço e) Çih f) CO IZ ОН CO g) F.
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...
a. Name 3 (out of 11, not including the identity) symmetry elements in the molecule cyclopropane. Hн b. What is the point group?
11. The hydration energy for [Cr(H20)is-1850 kJ/mole. (a) Using data in Table 8.4 and/or 8.5, determine Ao for the complex in kJ/mole. (a) Now draw the electronic configuration for the ion and determine the CFSE in kJ/mole [pairing energy- 23,500 cm'1 (c) What is the % contribution to the hydration energy of the CFSE ? 12. Assign each of the following molecules to a point group Fe NH2 Pt NH2 Br Br 13. List all the symmetry operations generated by...
13. (9 pts) (a) Draw out the general cis and trans elements of the yeast Gall locus in the absence of Galactose (Gall OFF, - Galactose). (b) What is one conceptual aspect of this regulation that is distinct from how prokaryotes tend to regulate gene expression? (c) In class, we talked about the activator bypass experiments. Draw out one experiment and the conclusion from this series of experiments.
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