Inorganic Chemistry

QUESTION 2: You have prepared the novel coordination compound ammonium dichlorodioxalatovanadate(?): (NH4)3[VCl₂(O₂CCO₂)₂]. a) What is the oxidation state of vanadium in the coordination compound? b) How many d-electrons are present in vanadium in this compound? c) Draw 2 isomers of the geometrically octahedral complex anion and determine their point groups. You must use dashes and wedges correctly to indicate the ligand positions. You must show all atoms including the ligand atoms. i. Isomer 1 (octahedral): trans-[VCl₂(O₂CCO₂)2]³- 1. Draw the 3-dimensional structure of the trans-[VCl₂(O₂CCO₂)2]³ complex.

For the Lennard-Jones potential discussed in class, show that the potential has a minimumat r min = 21/“0 with a minimum energy equal to —e.

7. The dipole moment of an isolated water molecule is 1.855 D. Calculate the energy in joules of the interaction between two water molecules separated by 10Awith dipoles oriented in opposite directions a) perpendicular to the distance vector between the molecules and b) parallel to the distance vector.

1. Use MolView to create the line structure of any alkane with more than 6 carbon atoms. 2. For the specific molecule you created above in question 1, what is its IUPAC name? 3. Create a structural isomer of the alkane you created above (same formula, but different IUPAC name). Press the 2D to 3D button after the line structure is created. Include a screenshot of it below: 4. For the specific molecule you created above in question 3, what is its IUPAC name? 5. Create an alkene with 5 carbon atoms that cannot form cis and trans isomers. Press the 2D to 3D button after the line structure is created. Include a screenshot of it below: 6. For the specific molecule you created above in question 5, what is its IUPAC name? 7. Why can the molecule from question 5 not form cis or trans isomers? Explain your answer. 8. Create an alkene with 5 carbon atoms that con form cis and trans isomers. Build the cis isomer. Press the 2D to 3D button after the line structure is created. Include a screenshot of it below: 9. Create the trans isomer of the molecule in question 8. Press the 2D to 3D button after the line structure is created. Include a screenshot of it below: 10. Would the molecule from number 5 or number 8 have a higher melting point? Explain your answer. 11. Construct a molecule with 5 carbon atoms that has a higher melting point than the molecules from question 5, 8, and 9. Press the 2D to 3D button after the line structure is created. Include a screenshot of it below: 12. For the specific molecule you created above in question 11, what is its IUPAC name? 13. Construct a benzene ring. Press the 2D to 3D button after the line structure is created. Include a screenshot of it below: 14. Rotate the 3D structure of the benzene ring. What do you notice about the structure? Is this similar in shape to cyclohexane? 15. Construct a haloalkyne molecule (an alkyne with a halogen atom). Press the 2D to 3D button after the line structure is created. Include a screenshot of it below: 16. For the specific molecule you created above in question 15, what is its IUPAC name?

1. Which way do the bond arrows point?

In part 2 of this lab, if a structure has no bond dipole please state this as part of your answer. Similarly for molecular dipole and partial charge. Keep the original “bent" arrangement of atoms and set the electronegativities of A and C to low and B to middle. Click to show the bond dipoles, molecular dipoles and partial charges. Draw the bond dipoles on the bonds inthe diagram Show the overall molecular dipole in the diagram Draw the partial charge symbols diagram.on the

You will find an image of the compound below on the images sheet associated with this experiment, use that image to describe the compound, and then look up and record its density and melting point from the reference materials.

You will find an image of the compound below on the images sheet associated with this experiment, use that image to describe the compound, and then look up and record its density and melting point from the reference materials.

Tuberculosis is a bacterial disease that causes the deaths of over1 million people a year annually. These bacteria survive within white blood cells and the acquisition of the iron they need for survival can be difficult. The bacteria use two types of siderophore to aid the acquisition of iron. Shown below are compound 4 which is an example of one type and compound 5 is an example of the second type used by these bacteria. a) Based on what you know about siderophores, identify thechelating group present in compound 4. b) Identify the denticity of compound 4 and by considering the most favoured coordination geometry of Fe(lII), state how many molecules of compound 4 are required to fully coordinate one Fe(lll) ion? c) Predict the charge of the complex formed by compound 4and Fe(llI) at pH 7, explaining how you came to your answer. Note, the approximate pK, values for 4 are around 2.5 for-COOH, between 9 and 10 for -NH3* and between 6 and 7for -CON(OH). marks)d) Comment on the significance of each of the following points with respect to compound 4, in terms of its efficacy as a siderophore. i. The stability constant for this ligand with Fe(llI) is 1031.4.You should also suggest whether the value is high or low,and explain why this might be the case. ii. E° (Fe+| Fe2+) for the complex is -0.55 V e) Compound 5 is a membrane bound siderophore and aids transport of the Fe* into the cell, where it is reduced to Fe*.It is believed that siderophore 4 transports iron to siderophore 5 in the bacteria which cause tuberculosis. By considering the structure of compound 5, and the following data, suggest how compound 5 aids transport of iron into the bacterial cell. Stability constant for compound 5 with Fe(III) is 1022.7 E° (Fe*| Fe*) for the complex is -0.30 V.

An electron is accelerated from rest with acceleration a=5.0m/s2. How much energy has it lost after it has traveled a distance of 10m?t)