Draw the molecules cis-[PtCl2(NH3)2] versus trans-[PtCl2(NH3)2]. a) If you assume the NH3 groups rotate freely and...
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.
Homework Answers
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Draw the molecules
cis-[PtCl2(NH3)2] versus
trans-[PtCl2(NH3)2].
a) If you assume the NH3 groups rotate freely and...
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.
Part B: cis and trans 1,2-dibromo cyclopentane 1. Draw cis-1,2-dibromocyclopentane and its mirror image below: 2....
Part B: cis and trans 1,2-dibromo cyclopentane 1. Draw cis-1,2-dibromocyclopentane and its mirror image below: 2. How many carbons in this compound are chiral, (bonded to 4 different groups? 3. Are the molecules superimposable? 1. Can this compound exist as a pair of enantiomers? 5. Which atom (according to IUPAC nomenclature) in the ring does the plane of symmetry cut in half? 6. Draw trans-1,2-dibromocyclopentane and its mirror image below:
Cart B: cis and trans 1,2-dibromo cyclopentane 1. Draw cis-1,2-dibromocyclopentane and its mirror image below: 3...
Cart B: cis and trans 1,2-dibromo cyclopentane 1. Draw cis-1,2-dibromocyclopentane and its mirror image below: 3 H HY Hmong CM 1 2. How many carbons in this compound are chiral, (bonded to 4 0 groups? 2 cox bons 3. Are the molecules superimposable? us, they axb. 4. Can this compound exist as a pair of enantiomers? 5. Which atom (according to IUPAC nomenclature) in the ring does the plane of symmetry cut in half? Carbon * 6. Draw trans-1,2-dibromocyclopentane and...
2. 2) Draw three-dimensional depictions of the following molecules. For each molecule provide theoretical bond angles,...
2. 2) Draw three-dimensional depictions of the following molecules. For each molecule provide theoretical bond angles, shape, and electron group geometry (ie octahedral, tetrahedral, bent, etc.). For each molecule, provide all possible structural and geometric isomers. If the molecule/ion possesses resonance structures, draw all relevant structures? What is the point group of each structure? If the compound is chiral, draw its enantiomer. a. C(CN)BrFCl b. WBr3Cl3 c. PtCl2(NH3)2 (square planar) d. NiCl2(NH3)2 (tetrahedral) e. PCl2F3 f. NO3-
3. Cyclic compounds The presence of the ring in all but very large ring cyclic molecules...
3. Cyclic compounds The presence of the ring in all but very large ring cyclic molecules prevents full rotation of the ring atoms. For this reason, stereoisomerism may also occur in cyclic molecules. a) Prepare a model of cyclohexane, C6H12. Draw the condensed formula. b) Build a model of methylcyclohexane (C7H14) by replacing one of the hydrogens of cyclohexane with a methyl group. Draw the skeletal formula for methylcyclohexane. 2 c) How many different isomers exist for methylcyclohexane (CyH34)? d)...
A. Enantiomers: Certain substances have the unique property of rotating the plane of plane-polarized light. Such...
A. Enantiomers: Certain substances have the unique property of rotating the plane of plane-polarized light. Such light rotation is detectable with the aid of a polarimeter. In order for a molecule to be optically active it must be chiral. Chiral objects lack a plane of symmetry and are non-superimposable on their mirror images. A sp?- hybridized carbon atom can fulfill these requirements if all four of its substituents are different. 1. Methane a) Prepare a methane molecule and then substitute...
ich has the highest energy? 7. a) Depending upon the kind of models you are using,...
ich has the highest energy? 7. a) Depending upon the kind of models you are using, you may or may not be able to construct models of cyclopropane and cyclobutane. Do so, if possible, but do not break the linkages. Why do we say that these molecules are strained? What is the normal sp3 bond angle? What are the (internal) C-C-C bond angles in cyclopropane? b) Make a model of cyclopentane. Does this molecule seem to have any ring strain...
In this problem, how do you know which atoms or groups are going away, towards you, or in plane from the chiral center?...
In this problem, how do you know which atoms or groups are
going away, towards you, or in plane from the chiral center? for
example, why do they assume that hydrogen is going away (dotted
line) and Ch3 is coming towards you (bold colored line)? And how do
you know which direction Ch2Ch2Br and Br is going in? its just a
single line (Not dotted or bold). I know directions are important
in determining R/S.
Ex: In the second photo...
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...
ANSWER 2 & 3 please. Show work for my understanding and upvote. THANK YOU!! 2. Given a regular n-gon, let r be a rotation of it by 2π/n radians. This time, assume that we are not allowed to flip...
ANSWER 2 & 3 please. Show work for my understanding and
upvote. THANK YOU!!
2. Given a regular n-gon, let r be a rotation of it by 2π/n radians. This time, assume that we are not allowed to flip over the n-gon. These n actions form a group denotecd (a) Draw a Cayley diagram for Cn for n-4, n-5, and n-6 (b) For n 4, 5, 6, find all minimal generating sets of C.· [Note: There are minimal generating sets...
Part B: cis and trans 1,2-dibromo cyclopentane 1. Draw cis-1,2-dibromocyclopentane and its mirror image below: 2. How many carbons in this compound are chiral, (bonded to 4 different groups? 3. Are the molecules superimposable? 1. Can this compound exist as a pair of enantiomers? 5. Which atom (according to IUPAC nomenclature) in the ring does the plane of symmetry cut in half? 6. Draw trans-1,2-dibromocyclopentane and its mirror image below:
Cart B: cis and trans 1,2-dibromo cyclopentane 1. Draw cis-1,2-dibromocyclopentane and its mirror image below: 3 H HY Hmong CM 1 2. How many carbons in this compound are chiral, (bonded to 4 0 groups? 2 cox bons 3. Are the molecules superimposable? us, they axb. 4. Can this compound exist as a pair of enantiomers? 5. Which atom (according to IUPAC nomenclature) in the ring does the plane of symmetry cut in half? Carbon * 6. Draw trans-1,2-dibromocyclopentane and...
3. Cyclic compounds The presence of the ring in all but very large ring cyclic molecules prevents full rotation of the ring atoms. For this reason, stereoisomerism may also occur in cyclic molecules. a) Prepare a model of cyclohexane, C6H12. Draw the condensed formula. b) Build a model of methylcyclohexane (C7H14) by replacing one of the hydrogens of cyclohexane with a methyl group. Draw the skeletal formula for methylcyclohexane. 2 c) How many different isomers exist for methylcyclohexane (CyH34)? d)...
A. Enantiomers: Certain substances have the unique property of rotating the plane of plane-polarized light. Such light rotation is detectable with the aid of a polarimeter. In order for a molecule to be optically active it must be chiral. Chiral objects lack a plane of symmetry and are non-superimposable on their mirror images. A sp?- hybridized carbon atom can fulfill these requirements if all four of its substituents are different. 1. Methane a) Prepare a methane molecule and then substitute...
ich has the highest energy? 7. a) Depending upon the kind of models you are using, you may or may not be able to construct models of cyclopropane and cyclobutane. Do so, if possible, but do not break the linkages. Why do we say that these molecules are strained? What is the normal sp3 bond angle? What are the (internal) C-C-C bond angles in cyclopropane? b) Make a model of cyclopentane. Does this molecule seem to have any ring strain...
In this problem, how do you know which atoms or groups are
going away, towards you, or in plane from the chiral center? for
example, why do they assume that hydrogen is going away (dotted
line) and Ch3 is coming towards you (bold colored line)? And how do
you know which direction Ch2Ch2Br and Br is going in? its just a
single line (Not dotted or bold). I know directions are important
in determining R/S.
Ex: In the second photo...
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...
ANSWER 2 & 3 please. Show work for my understanding and
upvote. THANK YOU!!
2. Given a regular n-gon, let r be a rotation of it by 2π/n radians. This time, assume that we are not allowed to flip over the n-gon. These n actions form a group denotecd (a) Draw a Cayley diagram for Cn for n-4, n-5, and n-6 (b) For n 4, 5, 6, find all minimal generating sets of C.· [Note: There are minimal generating sets...
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