A structure for the compound A, C 8 H 10 O 2 , with the following spectral data is to be proposed. IR: 1750 cm -1 ; 13 CNMR: 219 δ (20), two signals between 35 δ to 45 δ. Concept introduction: Aldehydes and ketones show a strong absorption band in IR from 1660-1770 cm -1 . Aldehydes show two characteristic C-H absorptions between 2700-2760cm -1 and 2800-2860 cm -1 . Saturated aldehydes absorb near 1730 cm -1 while aromatic aldehydes and α, β- unsaturated aldehydes absorb near 1705 cm -1 . Saturated ketones and cyclohexanones absorb near 1715 cm -1 while aromatic ketones and α, β- unsaturated ketones absorb near 1685-1690 cm -1 . Cyclopentanones absorb around 1750 cm -1 . In 13 CNMR, carbons in double bond which are sp2 hybridized absorb from 110 to 220 δ. Saturated aldehydes and ketones usually absorb in the region from 200 to 215 δ While aromatic and unsaturated carbonyl compounds absorb in the 190 to 200 δ region. The primary alkyl carbon absorbs in the range 10-15δ, a secondary alkyl radical in the range 16-25δ while a tertiary alkyl in the range 25-35 δ. To propose: A structure for the compound A, C 8 H 10 O 2 , with the following spectral data. IR: 1750 cm -1 ; 13 CNMR: 219 δ (20), two signals between 35 δ to 45 δ.

Question

Indicate the correct option.a) Graphite conducts electricity, being an isotropic materialb) Graphite is not a conductor of electricityc) Both are false

Answer 1

Question

Definition Definition Organic compounds that have a carbonyl group, C=O, as their functional group. The carbonyl group in aldehydes is placed at the end of the molecular structure, which means the C=O is attached to one hydrogen atom and an alkyl group or a benzene ring. Just like all the other homologous series in organic chemistry, the naming of aldehydes uses the suffix “-al”. The general molecular formula is C n H 2n O.

Chapter 19.SE, Problem 70AP

Interpretation Introduction

Interpretation:

A structure for the compound A, C₈H₁₀O₂, with the following spectral data is to be proposed.

IR: 1750 cm^-1; ¹³CNMR: 219 δ (20), two signals between 35 δ to 45 δ.

Concept introduction:

Aldehydes and ketones show a strong absorption band in IR from 1660-1770 cm^-1. Aldehydes show two characteristic C-H absorptions between 2700-2760cm^-1 and 2800-2860 cm^-1. Saturated aldehydes absorb near 1730 cm^-1 while aromatic aldehydes and α, β- unsaturated aldehydes absorb near 1705 cm^-1. Saturated ketones and cyclohexanones absorb near 1715 cm^-1 while aromatic ketones and α, β- unsaturated ketones absorb near 1685-1690 cm^-1. Cyclopentanones absorb around 1750 cm^-1.

In ¹³CNMR, carbons in double bond which are sp2 hybridized absorb from 110 to 220 δ. Saturated aldehydes and ketones usually absorb in the region from 200 to 215 δ While aromatic and unsaturated carbonyl compounds absorb in the 190 to 200 δ region. The primary alkyl carbon absorbs in the range 10-15δ, a secondary alkyl radical in the range 16-25δ while a tertiary alkyl in the range 25-35 δ.

To propose:

A structure for the compound A, C₈H₁₀O₂, with the following spectral data.

IR: 1750 cm^-1; ¹³CNMR: 219 δ (20), two signals between 35 δ to 45 δ.

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Indicate the correct option.a) Graphite conducts electricity, being an isotropic materialb) Graphite is not a conductor of electricityc) Both are false

(f) SO: Best Lewis Structure 3 e group geometry:_ shape/molecular geometry:, (g) CF2CF2 Best Lewis Structure polarity: e group arrangement:_ shape/molecular geometry: (h) (NH4)2SO4 Best Lewis Structure polarity: e group arrangement: shape/molecular geometry: polarity: Sketch (with angles): Sketch (with angles): Sketch (with angles):

1. Problem Set 3b Chem 141 For each of the following compounds draw the BEST Lewis Structure then sketch the molecule (showing bond angles). Identify (i) electron group geometry (ii) shape around EACH central atom (iii) whether the molecule is polar or non-polar (iv) (a) SeF4 Best Lewis Structure e group arrangement:_ shape/molecular geometry: polarity: (b) AsOBr3 Best Lewis Structure e group arrangement:_ shape/molecular geometry: polarity: Sketch (with angles): Sketch (with angles):

Answer 2

Question

Definition Definition Organic compounds that have a carbonyl group, C=O, as their functional group. The carbonyl group in aldehydes is placed at the end of the molecular structure, which means the C=O is attached to one hydrogen atom and an alkyl group or a benzene ring. Just like all the other homologous series in organic chemistry, the naming of aldehydes uses the suffix “-al”. The general molecular formula is C n H 2n O.

Chapter 19.SE, Problem 70AP

Interpretation Introduction

Interpretation:

A structure for the compound A, C₈H₁₀O₂, with the following spectral data is to be proposed.

IR: 1750 cm^-1; ¹³CNMR: 219 δ (20), two signals between 35 δ to 45 δ.

Concept introduction:

Aldehydes and ketones show a strong absorption band in IR from 1660-1770 cm^-1. Aldehydes show two characteristic C-H absorptions between 2700-2760cm^-1 and 2800-2860 cm^-1. Saturated aldehydes absorb near 1730 cm^-1 while aromatic aldehydes and α, β- unsaturated aldehydes absorb near 1705 cm^-1. Saturated ketones and cyclohexanones absorb near 1715 cm^-1 while aromatic ketones and α, β- unsaturated ketones absorb near 1685-1690 cm^-1. Cyclopentanones absorb around 1750 cm^-1.

In ¹³CNMR, carbons in double bond which are sp2 hybridized absorb from 110 to 220 δ. Saturated aldehydes and ketones usually absorb in the region from 200 to 215 δ While aromatic and unsaturated carbonyl compounds absorb in the 190 to 200 δ region. The primary alkyl carbon absorbs in the range 10-15δ, a secondary alkyl radical in the range 16-25δ while a tertiary alkyl in the range 25-35 δ.

To propose:

A structure for the compound A, C₈H₁₀O₂, with the following spectral data.

IR: 1750 cm^-1; ¹³CNMR: 219 δ (20), two signals between 35 δ to 45 δ.

Expert Solution & Answer

Trending nowThis is a popular solution!

See solution

Check out sample textbook solution

Answer 3

Question

Definition Definition Organic compounds that have a carbonyl group, C=O, as their functional group. The carbonyl group in aldehydes is placed at the end of the molecular structure, which means the C=O is attached to one hydrogen atom and an alkyl group or a benzene ring. Just like all the other homologous series in organic chemistry, the naming of aldehydes uses the suffix “-al”. The general molecular formula is C n H 2n O.

Chapter 19.SE, Problem 70AP

Interpretation Introduction

Interpretation:

A structure for the compound A, C₈H₁₀O₂, with the following spectral data is to be proposed.

IR: 1750 cm^-1; ¹³CNMR: 219 δ (20), two signals between 35 δ to 45 δ.

Concept introduction:

Aldehydes and ketones show a strong absorption band in IR from 1660-1770 cm^-1. Aldehydes show two characteristic C-H absorptions between 2700-2760cm^-1 and 2800-2860 cm^-1. Saturated aldehydes absorb near 1730 cm^-1 while aromatic aldehydes and α, β- unsaturated aldehydes absorb near 1705 cm^-1. Saturated ketones and cyclohexanones absorb near 1715 cm^-1 while aromatic ketones and α, β- unsaturated ketones absorb near 1685-1690 cm^-1. Cyclopentanones absorb around 1750 cm^-1.

In ¹³CNMR, carbons in double bond which are sp2 hybridized absorb from 110 to 220 δ. Saturated aldehydes and ketones usually absorb in the region from 200 to 215 δ While aromatic and unsaturated carbonyl compounds absorb in the 190 to 200 δ region. The primary alkyl carbon absorbs in the range 10-15δ, a secondary alkyl radical in the range 16-25δ while a tertiary alkyl in the range 25-35 δ.

To propose:

A structure for the compound A, C₈H₁₀O₂, with the following spectral data.

IR: 1750 cm^-1; ¹³CNMR: 219 δ (20), two signals between 35 δ to 45 δ.

Expert Solution & Answer

Trending nowThis is a popular solution!

See solution

Check out sample textbook solution

Answer 4

Question

Definition Definition Organic compounds that have a carbonyl group, C=O, as their functional group. The carbonyl group in aldehydes is placed at the end of the molecular structure, which means the C=O is attached to one hydrogen atom and an alkyl group or a benzene ring. Just like all the other homologous series in organic chemistry, the naming of aldehydes uses the suffix “-al”. The general molecular formula is C n H 2n O.

Chapter 19.SE, Problem 70AP

Interpretation Introduction