What is the point group of 18-crown-6 (1,4,7,10,13,16- hexaoxacyclooctadecane) assuming it is a planar molecule as shown on the right? A. Csa В. Da C. Da D. De E. S6
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What is the point group of 18-crown-6 (1,4,7,10,13,16- hexaoxacyclooctadecane) assuming it is a planar molecule as shown on the right?
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- Draw a Lewis structure and determine the point group for each of the following molecules. Indicate formal charges for ions. Indicate 3D stereochemistry by drawing solid and hashed bonds. a. XeO3 b. SOF4 c. ClOF2+ d. XeO2F2 e. TeF42-What is the point group, chirality and polarity of 1-bromobenzene, 1,2,3-tribromobenzene, 1,4-dibromobenzene, 1,3,5, tribromobenzene, perbromobenzene?(a) Which is the acid and which is the base in the reaction? Explain using the appropriate acid / base definitions. (b) A proton is defined as a hard acid. What does this tell you about the properties of [Si9]4-? Explain. (c) [Si9]4- belongs to point group C4v. 1. Describe what will happen to the symmetry elements if one of the atoms is replaced with carbon, as seen in the following figures: (specify which symmetry elements are lost) 2. Is either A or B chiral? Explain. (d) Using Wade's rules, predict the cluster structure of [Si9]4-. Which borohydride cluster is identiical to the [Si9]4-cluster structure? explain.
- .A. w: Mn= 25, Co= 27, Ni= 28, Zn= 30 ------------ Complex K3[Mn(C204)3] Highly distorted. O Low distorted. O not distorted. O The magnetic moment of the -------------- complex [Ni(en)3]CI2 is * 0Bm 2.8 BM 1.8 BM O OO0O0 3.8 BMDraw a qualitative M.O. diagram of PH3 based off of symmetry.Which of the following would be expected to have a dipole moment of zero on the basis of symmetry? Explain. a. SOCl2; b. SiF4; c. OF2.
- Can molecules belonging to the point groups Th or Td be chiral? Explain your answer.One of the first compound synthesized where Xenon is a part of a cationic complex is XeF3+ SbF6-. To what point group does the cationic and anionic complex belong, respectively? A. C2v, Oh B. C3v, Oh C. D3h, Oh D. none of the above is the orrect point group assignment E. D3h, C5valso specify the integration valuesfor all Hs in each molecule.
- IR Spectrum and analysis of peaks Possible causes of error Discuss the mechanism and why a racemic mixture of cis and trans is formed1H NMR spectrum of (C5H5)2Fe(CO)2 shows two peaks of equal area at room temperature, but has four resonances of relative intensity 5:2:2:1 at low temperatures. Explain this thinking about C5H5 ligand haptisity?Draw the shape of the [XeF5]- ion and answer the questions below: (ii) What is the point group of the [XeF5]- ion? What is the order of the point group of the [XeF5]- ion?