Luminol dianion is treated with hydrogen peroxide and potassium ferricyanide which results in formation of triplet excited state dianion and liberation of nitrogen gas. Once formed, the triplet dianion undergoes intersystem crossing to form a singlet excited state. As the molecule returns to the ground state, it emits bluish-green light. 9. (1) Draw the curved arrow mechanism showing conversion of B to C. (Hint: Think of Diels- Alder reaction mechanism) :0

Q: Identify the expected major product of the following Diels-Alder reaction. cre ololololol O III OIV…

A: Reaction involved diene and dienophile. This is (4+2) cyclo addition reaction(diels alder reaction).…

Q: A Diels-Alder reaction that shows regioselectivity, but not stereoselectivity

A: Diels-Alder reaction: The Diels–Alder reaction is a pericyclic reaction (cycloaddition) between a…

Q: 3 2 diene 5 dienophile diels-Alder A Ü 3 5 product

A: Stuart Schreiber's ozonolysis is a reaction of an alkene with O3 (ozone) , ROH and sodium…

Q: cases where many diasteriomers can be formed, why does the Diels-Alder reaction often show high…

A: Solution: We Know the cycloaddition reaction ( the type of pericyclic reaction) are concerted one…

Q: 3) How would you form the following molecule using a Diels-Alder reaction?

A: Given,The product molecule is:

Q: Label attached diene as reactive or unreactive in a Diels–Alder reaction

A: Diels-Alder reaction is an important reaction of chemistry. It helps in synthesis of several organic…

Q: 17. What is/are the major product(s) of the following Diels Alder reaction?

A: Applying concept of Diels Alder reaction.

Q: 7. Provide a MO diagram, which depicts the relative energies of the pi molecular orbitals of…

A: HOMO is highest occupied molecular orbitalLUMO is lowest unoccupied molecular orbital

Q: Draw and label a Born-Haber diagram for Re203

A: To draw and label Born Haber diagram of Re2O3

Q: Given the diene and dienophile shown, identify the carbon atoms that will become new stereocenters…

A: In a Diels-Aalder reaction a conjugated diene and a dienophile undergo [4+2]cycloaddition reaction…

Q: How do you use pyride for the Diels-Alder reaction?

A: Diels-Alder reaction: It is the reaction between diens and dienophile. Diene must be conjugated…

Q: Draw normal electron demand and inverse electron demand Diels-Alder mechanism. And explain…

A: Diels Alder's reaction is an example of a cycloaddition reaction. It is an example of a [4+2]…

Q: Explain about   Buta-1,3-diene ?

A: A question about butadiene, which is to be accomplished.

Q: + H H с CN CN

A: In Diels Alder reaction cis Diene take part in reaction .Hence, first of all through single bond…

Q: 18. In the molecu orbitals are pr A) 1 B) 2 C) 4 D) 6 E) 8

A: Pi-bonds are formed by the side-wisr overlap of P orbital i.e. one pi-bond is formed by two P…

Q: Would a bromine test be a good test to look at the completion of a diels-alder reaction?

A: The bromine test is commonly used in chemistry to detect the presence of unsaturation, such as…

Q: In a Diels-Alder Reaction, an "endo" group: (Choose all correct answers) Is on the same side as the…

A: Dies-Alder reaction is a concerted cyclisation reaction that occur between diene and dienophile to…

Q: Determine the reactant that completes the following Diels-Alder rxn. II IV b.V Oc." Od.' a.

A: This is an example of Diels-Alder reaction (4+2 cycloaddition). Here benzyne acts as dienophile. we…

Q: In a Diels-Alder expirment, what does a 73% yield tell you

A: The question is based on the concept of experimental Chemistry. we need to explain meaning of…

Q: What is the Diels-Alder reaction?

A: Diels-Alder reaction:   This reaction is an example for (4+2) cyclo addition reaction  2 C-C…

Q: Only one isomer of product is formed in the Diels-Alder cycloaddition. Why?

A: We have been asked to explain reason behind formation of only one isomer of product in Diels-Alder…

Q: None

A: The Diels-Alder reaction is a cycloaddition reaction between a conjugated diene and a dienophile to…

Q: D. Provide a reasonable mechanism for the Diels-Alder reaction between two molecules of…

A:

Q: list the given dienes in the order from least reactive to most reactive.

A:

Q: a) b) c) H3C, с CHO - " CHO CN CN

A:

Q: Please complete the following Diels-Alder reaction (dienes with dienophile) Please explain

A: The Diels-Alder reaction is a conjugate addition reaction of a conjugated diene to an alkene or…

Q: draw the MO energy diagram of cyclooctatetraene

A: The molecular orbital diagram of cyclooctatetraene is represented as shown below.

Q: 16. What is/are the major product(s) of the following Diels-Alder reaction? O2N. + NO2 ОBJ:…

A:

UV Visible Spectroscopy

Spectroscopy refers to the absorption or emission of light or other radiations by matter. When a substance or chemical absorbs light or radiation, they reach an excited state followed by de-excitation or emission of the light or radiation forming distinct spectra. UV-visible spectroscopy or  ultraviolet-visible refers to the absorption and emission in the ultraviolet and visible regions of the electromagnetic spectrum.