No ,it is a weak nucleophilic reducing agent.hence it attacks highly electropositive carbon center such as ketone, aldihyde .to reduce the alkyl halide H2/Ni is required.
No ,it is a weak nucleophilic reducing agent.hence it attacks highly electropositive carbon center such as ketone, aldihyde .to reduce the alkyl halide H2/Ni is required.
I know of no simple relationship between these two factors. The boiling points generally are determined by intermolecular forces, while bond strengths relate to the intramolecular forces.
Perhaps one can generalize that alkyl iodides, for example ,have weaker and longer C-I bonds than alkyl chlorides C-Cl bonds due to the larger size of the iodine atom. This may result in stronger London forces for the alkyl iodides, and higher boiling points.
I know of no simple relationship between these two factors. The boiling points generally are determined by intermolecular forces, while bond strengths relate to the intramolecular forces.
Perhaps one can generalize that alkyl iodides, for example ,have weaker and longer C-I bonds than alkyl chlorides C-Cl bonds due to the larger size of the iodine atom. This may result in stronger London forces for the alkyl iodides, and higher boiling points.
Boiling point is a measure of a physical reaction. No bonds are broken (other than perhaps hydrogen bonds and van der Waals forces) and so bond strength in alkyl halides is irrelevant.
Boiling point is a measure of how much energy is required to lift a molecule out of a liquid state. It will depend on the weight of the molecule (heavy things need more energy to lift then than light things do), and it will depend upon how tightly the molecule is held against it neighbours in the liquid phase. This is where H-bonds and dipole moments can play a part.
Boiling point is a measure of a physical reaction. No bonds are broken (other than perhaps hydrogen bonds and van der Waals forces) and so bond strength in alkyl halides is irrelevant.
Boiling point is a measure of how much energy is required to lift a molecule out of a liquid state. It will depend on the weight of the molecule (heavy things need more energy to lift then than light things do), and it will depend upon how tightly the molecule is held against it neighbours in the liquid phase. This is where H-bonds and dipole moments can play a part.
I am assuming you are asking about SN2 rxns. Alkyl halides are far more reactive, whilst aryl halides are unreactive unless its an electron poor ring system (SNAr).
Transition metals and Mg (0)/organolithium reagents tend favor aryl halides
I am assuming you are asking about SN2 rxns. Alkyl halides are far more reactive, whilst aryl halides are unreactive unless its an electron poor ring system (SNAr).
Transition metals and Mg (0)/organolithium reagents tend favor aryl halides
For isomeric alkyl halides ,order of boiling point is tertiary 〉secondary 〉primary .With increase in branching ,molecular surface area decreases ,hence forces of attraction that hold molecules get weekend. Due to this ,intermolecular forces of attraction between the molecules of branch isomers goes on decreasing. And in case of normal isomers ,molecular surface area is high and the molecules are closely associated,hence higher boiling point is recorded.
For isomeric alkyl halides ,order of boiling point is tertiary 〉secondary 〉primary .With increase in branching ,molecular surface area decreases ,hence forces of attraction that hold molecules get weekend. Due to this ,intermolecular forces of attraction between the molecules of branch isomers goes on decreasing. And in case of normal isomers ,molecular surface area is high and the molecules are closely associated,hence higher boiling point is recorded.
Boiling point of alkyl halides increases with increase in molecular mass. For given alkyl group boiling point of alkyl halides follow the order.
RI >RBr >RCl >RF
Boiling point of alkyl halides increases with increase in molecular mass. For given alkyl group boiling point of alkyl halides follow the order.
RI >RBr >RCl >RF
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No ,it is a weak nucleophilic reducing agent.hence it attacks highly electropositive carbon center such as ketone, aldihyde .to reduce the alkyl halide H2/Ni is required.
No ,it is a weak nucleophilic reducing agent.hence it attacks highly electropositive carbon center such as ketone, aldihyde .to reduce the alkyl halide H2/Ni is required.
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I know of no simple relationship between these two factors. The boiling points generally are determined by intermolecular forces, while bond strengths relate to the intramolecular forces.
Perhaps one can generalize that alkyl iodides, for example ,have weaker and longer C-I bonds than alkyl chlorides C-Cl bonds due to the larger size of the iodine atom. This may result in stronger London forces for the alkyl iodides, and higher boiling points.
I know of no simple relationship between these two factors. The boiling points generally are determined by intermolecular forces, while bond strengths relate to the intramolecular forces.
Perhaps one can generalize that alkyl iodides, for example ,have weaker and longer C-I bonds than alkyl chlorides C-Cl bonds due to the larger size of the iodine atom. This may result in stronger London forces for the alkyl iodides, and higher boiling points.
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Boiling point is a measure of a physical reaction. No bonds are broken (other than perhaps hydrogen bonds and van der Waals forces) and so bond strength in alkyl halides is irrelevant.
Boiling point is a measure of how much energy is required to lift a molecule out of a liquid state. It will depend on the weight of the molecule (heavy things need more energy to lift then than light things do), and it will depend upon how tightly the molecule is held against it neighbours in the liquid phase. This is where H-bonds and dipole moments can play a part.
Boiling point is a measure of a physical reaction. No bonds are broken (other than perhaps hydrogen bonds and van der Waals forces) and so bond strength in alkyl halides is irrelevant.
Boiling point is a measure of how much energy is required to lift a molecule out of a liquid state. It will depend on the weight of the molecule (heavy things need more energy to lift then than light things do), and it will depend upon how tightly the molecule is held against it neighbours in the liquid phase. This is where H-bonds and dipole moments can play a part.
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To be precise an acid halide is derived from an acid while alkyl halide is derived from simple hydrocarbon
The general formula for acid halide is R-CO-X i.e.
OH group of Carboxylic acid is replaced is halogen atom
While the general formula of alkyl halide is R-X
i.e one hydrogen of the hydrocarbon is replaced by halogen.
To be precise an acid halide is derived from an acid while alkyl halide is derived from simple hydrocarbon
The general formula for acid halide is R-CO-X i.e.
OH group of Carboxylic acid is replaced is halogen atom
While the general formula of alkyl halide is R-X
i.e one hydrogen of the hydrocarbon is replaced by halogen.
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I am assuming you are asking about SN2 rxns. Alkyl halides are far more reactive, whilst aryl halides are unreactive unless its an electron poor ring system (SNAr).
Transition metals and Mg (0)/organolithium reagents tend favor aryl halides
I am assuming you are asking about SN2 rxns. Alkyl halides are far more reactive, whilst aryl halides are unreactive unless its an electron poor ring system (SNAr).
Transition metals and Mg (0)/organolithium reagents tend favor aryl halides
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For isomeric alkyl halides ,order of boiling point is tertiary 〉secondary 〉primary .With increase in branching ,molecular surface area decreases ,hence forces of attraction that hold molecules get weekend. Due to this ,intermolecular forces of attraction between the molecules of branch isomers goes on decreasing. And in case of normal isomers ,molecular surface area is high and the molecules are closely associated,hence higher boiling point is recorded.
For isomeric alkyl halides ,order of boiling point is tertiary 〉secondary 〉primary .With increase in branching ,molecular surface area decreases ,hence forces of attraction that hold molecules get weekend. Due to this ,intermolecular forces of attraction between the molecules of branch isomers goes on decreasing. And in case of normal isomers ,molecular surface area is high and the molecules are closely associated,hence higher boiling point is recorded.
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