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3. Consider the loctahedral species CrCl? (point group O). What point group results by (a) removing...
Workshop 15 Data and Observations - Part 3 cis-Dichloroethene trans-Dichloroethene Cl CI CI H C=C C=C...
Workshop 15 Data and Observations - Part 3 cis-Dichloroethene trans-Dichloroethene Cl CI CI H C=C C=C H H H CI (CI's on same side of the molecule) (Cl's on opposite sides of the molecule) Dipole Moment: 1.98 D Dipole Moment: Why do these dipole moment results make sense? since the clis on opposite sides of the roleale; it crosses at making trans-Dichlorestore nonpoler, C3H12 Isomers CH3-CH2-CH2-CH2-CH3 0.070 Dipole Moment: CH3 1 CH3-CH-CH2-CH3 Dipole Moment: 0.12 o D Dipole Moment: CH3...
SYNTHESIS OF TRANSITION METAL COORDINATION COM 3. Ethylenediamine ("en" in short-hand notation) has two amine group...
SYNTHESIS OF TRANSITION METAL COORDINATION COM 3. Ethylenediamine ("en" in short-hand notation) has two amine groups, one at each end of a two-carbon chain, NH,CH,CH,NH. Each nitrogen in NH,CH,CH_NH, has a lone pair that coordinates to the metal. Thus, one NH CH CH NH, ligand, takes up two coordina- tion sites. a) Draw and label the structures of the cis and trans isomers of Co(en),C1,CI. b) What is the coordination number for (Coſen),C1,CI? c) Determine the oxidation state of the...
3. [4 points] Circle the species in each of the following sets of atoms/ions that has...
3. [4 points] Circle the species in each of the following sets of atoms/ions that has the larger radius. (a) F, Li oro (b) Cs, Li or Na (c) V, V or V5+ (d) , or O- 4. (5 points) Which of the following sets of ions are isoelectronic with each other? (a) Cl,K,S (isoelectronic/not isoelectronic) (b) Mg, Nat, CI (isoelectronic/not isoelectronic) (c) Cap, Ga, Br (isoelectronic/not isoelectronic) (d) Co, Fe, Ni? (isoelectronic/not isoelectronic) (e) Sc Ti V- (isoelectronic/not isoelectronic)...
The graph below is a plot of the relative energies of the various conformations of 0 60 120 180 240 300 360 Angl...
The graph below is a plot of the relative energies of the various conformations of 0 60 120 180 240 300 360 Angle of rotation OA.Chloroethane O B. Ethane OC Propane OD. Butane (C1-C2 rotation) OE 1-Chloropropane (C1-C2 rotation) Refative Dhergy Which staggered Newman projection(s), looking down the C-2-C-3 bond (C-2 in front and C-3 in back), illustrates the following boxed compound? CH CH CH CH CH CH H CI H сн.CH II CHy CH CH CH HiC. H CH...
1. 2. 3. What would be the result of the following reaction sequence? (1) PBrz OH...
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What would be the result of the following reaction sequence? (1) PBrz OH (2) NaNH2, NH3 (3) Brą, CCIA ? Select one: O a. an trans-organo bromo-chloride O b. a cis-organo-dibromide O c. a cis organo-dichloride O d. a trans-organo diester O e. a trans-organo-dibromide O f. a trans-organo diamine O g. An organonitrile O h. an cis-organo amino-bromide How many peaks would be in the 13C-NMR of the following three molecules repectively? CH3 CH3 Select one:...
Symmetry point groups Question 8 time 12 minutes] Identify the symmetry point group of the following...
Symmetry point groups
Question 8 time 12 minutes] Identify the symmetry point group of the following molecules and specify if they can have a permanent electric dipole moment (a) ortho-phenanthroline (C12N2H&) (b) BrFs F Br F F FI Ni (d) PFs (c) mer-OsCl3(CO)3 CI Cl F-p.F F Co OC L C L 8 8
A. Consider the following pairs of structures. Designate each chirality center as (R) or (S) and...
A. Consider the following pairs of structures. Designate each
chirality center as (R) or (S) and identify the
relationship between them by describing them as representing
enantiomers, diastereomers, constitutional isomers, or two
molecules of the same compound. Use handheld molecular models to
check your answers.
B. Tartaric acid
[HO2CCH(OH)CH(OH)CO2H] was an important
compound in the history of stereochemistry. Two naturally occurring
forms of tartaric acid are optically inactive. One optically
inactive form has a melting point of 210 − 212 °...
Select the strongest bond in the following group. C-S C-O C=C C=N C-F A nonpolar covalent...
Select the strongest bond in the following group. C-S C-O C=C C=N C-F A nonpolar covalent bond(i.e., pure covalent) would form in which of these pairs of atoms? Na-Cl H-Cl Li-Br Se-Br Br-Br Arrange aluminum, nitrogen, phosphorous, and indium in order of increasing electronegativity. Al< ln <N< P Al < ln < P <N ln < Al < P < N ln < p < Al < N None of these order is correct. Which of these Lewis structure is...
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...
b. Which of the following alkanes has the highest bolling point? 2,3-dimethylbutane: 2-methylpentane; 3-methylpentane; hexane c....
b. Which of the following alkanes has the highest bolling point? 2,3-dimethylbutane: 2-methylpentane; 3-methylpentane; hexane c. Which of the following compounds can adopt a chair conformation in which there are no axial methyl groups? 1,1-dimethylcyclohexane; cis-1,2-dimethylcyclohexane; trans-1,2-dimethylcyclohexane; trans-1,3-di methylcyclohexane d. Which of the following compounds can adopt a chair conformation which there are no axial methyl groups? cis-1,2-dimethylcyclohexane; cis-1,3-dimethylcyclohexane; trans-1,3-dimethylcyclohexane; cis-1.4-dimethylcyclohexane cis-1,2-dimethvcyclohexane (Enter the numerical value only, without any units)? e. What is the approximate di hedral angle between the...
Workshop 15 Data and Observations - Part 3 cis-Dichloroethene trans-Dichloroethene Cl CI CI H C=C C=C H H H CI (CI's on same side of the molecule) (Cl's on opposite sides of the molecule) Dipole Moment: 1.98 D Dipole Moment: Why do these dipole moment results make sense? since the clis on opposite sides of the roleale; it crosses at making trans-Dichlorestore nonpoler, C3H12 Isomers CH3-CH2-CH2-CH2-CH3 0.070 Dipole Moment: CH3 1 CH3-CH-CH2-CH3 Dipole Moment: 0.12 o D Dipole Moment: CH3...
SYNTHESIS OF TRANSITION METAL COORDINATION COM 3. Ethylenediamine ("en" in short-hand notation) has two amine groups, one at each end of a two-carbon chain, NH,CH,CH,NH. Each nitrogen in NH,CH,CH_NH, has a lone pair that coordinates to the metal. Thus, one NH CH CH NH, ligand, takes up two coordina- tion sites. a) Draw and label the structures of the cis and trans isomers of Co(en),C1,CI. b) What is the coordination number for (Coſen),C1,CI? c) Determine the oxidation state of the...
3. [4 points] Circle the species in each of the following sets of atoms/ions that has the larger radius. (a) F, Li oro (b) Cs, Li or Na (c) V, V or V5+ (d) , or O- 4. (5 points) Which of the following sets of ions are isoelectronic with each other? (a) Cl,K,S (isoelectronic/not isoelectronic) (b) Mg, Nat, CI (isoelectronic/not isoelectronic) (c) Cap, Ga, Br (isoelectronic/not isoelectronic) (d) Co, Fe, Ni? (isoelectronic/not isoelectronic) (e) Sc Ti V- (isoelectronic/not isoelectronic)...
The graph below is a plot of the relative energies of the various conformations of 0 60 120 180 240 300 360 Angle of rotation OA.Chloroethane O B. Ethane OC Propane OD. Butane (C1-C2 rotation) OE 1-Chloropropane (C1-C2 rotation) Refative Dhergy Which staggered Newman projection(s), looking down the C-2-C-3 bond (C-2 in front and C-3 in back), illustrates the following boxed compound? CH CH CH CH CH CH H CI H сн.CH II CHy CH CH CH HiC. H CH...
1.
2.
3.
What would be the result of the following reaction sequence? (1) PBrz OH (2) NaNH2, NH3 (3) Brą, CCIA ? Select one: O a. an trans-organo bromo-chloride O b. a cis-organo-dibromide O c. a cis organo-dichloride O d. a trans-organo diester O e. a trans-organo-dibromide O f. a trans-organo diamine O g. An organonitrile O h. an cis-organo amino-bromide How many peaks would be in the 13C-NMR of the following three molecules repectively? CH3 CH3 Select one:...
Symmetry point groups
Question 8 time 12 minutes] Identify the symmetry point group of the following molecules and specify if they can have a permanent electric dipole moment (a) ortho-phenanthroline (C12N2H&) (b) BrFs F Br F F FI Ni (d) PFs (c) mer-OsCl3(CO)3 CI Cl F-p.F F Co OC L C L 8 8
A. Consider the following pairs of structures. Designate each
chirality center as (R) or (S) and identify the
relationship between them by describing them as representing
enantiomers, diastereomers, constitutional isomers, or two
molecules of the same compound. Use handheld molecular models to
check your answers.
B. Tartaric acid
[HO2CCH(OH)CH(OH)CO2H] was an important
compound in the history of stereochemistry. Two naturally occurring
forms of tartaric acid are optically inactive. One optically
inactive form has a melting point of 210 − 212 °...
Select the strongest bond in the following group. C-S C-O C=C C=N C-F A nonpolar covalent bond(i.e., pure covalent) would form in which of these pairs of atoms? Na-Cl H-Cl Li-Br Se-Br Br-Br Arrange aluminum, nitrogen, phosphorous, and indium in order of increasing electronegativity. Al< ln <N< P Al < ln < P <N ln < Al < P < N ln < p < Al < N None of these order is correct. Which of these Lewis structure is...
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...
b. Which of the following alkanes has the highest bolling point? 2,3-dimethylbutane: 2-methylpentane; 3-methylpentane; hexane c. Which of the following compounds can adopt a chair conformation in which there are no axial methyl groups? 1,1-dimethylcyclohexane; cis-1,2-dimethylcyclohexane; trans-1,2-dimethylcyclohexane; trans-1,3-di methylcyclohexane d. Which of the following compounds can adopt a chair conformation which there are no axial methyl groups? cis-1,2-dimethylcyclohexane; cis-1,3-dimethylcyclohexane; trans-1,3-dimethylcyclohexane; cis-1.4-dimethylcyclohexane cis-1,2-dimethvcyclohexane (Enter the numerical value only, without any units)? e. What is the approximate di hedral angle between the...
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