0
Want this question answered?
Be notified when an answer is posted
Add your answer:
Earn +20 pts
Why is the human body considered to be chiral?
Our hands, because they are mirror images of each other.
What are some examples of chiral molecules?
Some examples of chiral molecules include glucose, amino acids, and certain drugs like ibuprofen. Chiral molecules have a non-superimposable mirror image, called enantiomers, which can have different biological activities and properties.
Why do amino acids have peculiar structures?
I'm not sure what you mean by "peculiar". Amino acids are formed by an amino group, a carboxyl group, a central (linking) carbon, and a variable side group. The side group determines the distinctive amino acid.
Is 2 methyl 2 propane amine an optical isomer or a geometrical isomer and why?
2-methyl-2-propaneamine (isopropylamine) is neither an optical isomer nor a geometric isomer. Optical isomers arise from chirality (having a non-superimposable mirror image), whereas geometric isomers arise from restricted rotation around a double bond or ring. In the case of isopropylamine, it is a branched molecule without a chiral center or a double bond, so it does not exhibit optical or geometric isomerism.
What is meant by absolute configuration?
According to the Internatioinal Union of Pure and Applied Chemistry (IUPAC), every molecule (compound/chemical structure) has to have it's own specific name. Noted: some molecules have a chemical name and a common name, for example, isopropyl alcohol also known as rubbing alcohol, respectively, the chemical name and the common name. Yet, every molecule has to have a specific name, otherwise confusion occurs when two different molecules are named with the same name! In the case of a pair of Enantiomers, of which, is the only case in which Absolute Configuration (RS Configuration) is determined to name two elements (the pair of Enantiomers). Remembering that a pair of Enantioimers only vary in their 3-dimensional spatial arrangement. In order to do this, the Absolute Configuration (RS Configuration) is determined. To determine the Absolute Configuration (RS Configuration), the Stereogenic Carbon (also called a Stereocenter) has to have 4 different elements single bonded to the carbon element (stereogenic carbon). Prioritize the elements using the Cahn, InGold and Prelog (CIP) rules, once that is done you will need to, according to the CIP rules, draw a circle (arrow) from the #1 priority element (group) to the 2nd to the 3rd and take note of which direction the arrow is going, that is, to the right or the left. If the arrow goes to the right it is denoted as R, if it goes to the left it is denoated with an S. One Enantiomer will be R and the other will be S, and assigned to the name of the molecule. Therefore, each Enantiomer of the pair of Enantiomers, has a distinct name using an R or an S. The McLaurin Method describes a method using your hand, arm and three digits to determine the correct configuration of each stereocenter (stereogenic carbon). It is simple to learn and covers more tha 5 different molecular representations with several examples, so the professor or the molecule(s) in question will never fool you on a quiz, exam or final exam, DAT or MCAT. Yet, you will have to learn the CIP rules on your own, I did not discuss how to use the CIP rules on my website, yet how to determine the configuration of a stereocenter. NOTE: The pair of Enantiomers (2 molecules differing by 3-dimensional spatial arrangement), discussed in the chapter on Stereochemistry, only differ by their rotation of plane polarized light. Just because the configuratin is, for example, to the right, denoted by an R, does Not mean it rotates plane polarized light to the right, it may and it may not! Those rotations of light have been pre-determined and are on a chart that you should and would have at your side. Also, if the configuration is to the left, denoated by an S, does Not mean it rotates plane polarized light to the left, it may or it may not! Once again, those rotations of light have been pre-determined. Good Luck with the method I put together, you can do a search for McLaurin Method and you will find it on the first page of search results, and it is straight forward and will be EASY to remember and use throughout your years of learning Stereochemistry, Isomers, Streeoisomers and a pair of Enantiomers PS: Absolute Configuration references the 3-dimensional spatial arrangement of elements in space. The pair of Enantiomers are assymeteric, non-superimposable on it's mirror image and have Chirality and Handedness.
Is Alpha pinene superimposable?
yes
What is meant by chirality of a compound?
It is a compound that has a non superimposable mirror image, and an asymmetric center.
Can a chiral compound be achiral explain?
No, chiral and achiral are the opposite of each other. Achiral means a compound is superimposable on its mirror image, chiral means it isn't, so it can't be both.
Why is the human body considered to be chiral?
Our hands, because they are mirror images of each other.
What are some examples of chiral molecules?
Some examples of chiral molecules include glucose, amino acids, and certain drugs like ibuprofen. Chiral molecules have a non-superimposable mirror image, called enantiomers, which can have different biological activities and properties.
Is the product of anthracene and maleic anhydride chiral?
Anthracene is not chiral, if you draw a mirror image of the molecule you find that it is superimposable. All chiral compounds must have an enantiomer which is an identical compound that is nonsuperimposable. And maleic anhydride is superimposable as well so therefore it isn't chiral. (If I assume you're referring to a Diels-Alder reaction then you'd probably like to know the answer to this as well.)
What is a necessary condition to determine mirror images of optical isomers?
To create enantiomers, the chiral carbon and its attached groups must be non-superimposable. The typical example would be to use our hands as an example: both hands facing down would be mirror images of each other. However, putting one hand on top of the other would be non-superimposable. When the isomer of one molecule is added to its enantiomer, its optical rotation disappears and becomes racemic--achiral.
Why meso compounds are optically inactive?
A meso compoundis a molecule with multiple stereocenters that is superimposable on its mirror image. These particular traits lead to specific qualities that meso compoundsdo not share with most other stereoisomers. One such quality is the internal mirror plane. Optically inactive compounds are any that cannot be superimposed on itself.
What is the cause of optical activity?
Optical activity happens in a solution with components of quartz, sugar or certain gases. It is when the plane of linearly polarized light is turns to the direction of movement through the components.
Why do amino acids have peculiar structures?
I'm not sure what you mean by "peculiar". Amino acids are formed by an amino group, a carboxyl group, a central (linking) carbon, and a variable side group. The side group determines the distinctive amino acid.
How do isomers of an alkene differ if they have the same molecular formulas?
Generally, they have different arrangements.There are two main types of isomerism:structural isomerism, in which the isomer and the alkene have the same number of carbon and hydrogen atoms; andthe isomer and the alkene each has a different arrangement of carbon and hydrogen atomsoptical isomerism, in which two enantiomers1 have the same molecular formula but are mirror images and are non-superimposable; anda chiral carbon is present, which means that it is bonded to four different atoms/groups.
How can methamphetamine show up in your system if i don't smoke meth?
Methamphetamine can be detected in a drug test even if one does not smoke/abuse meth. One way this is possible is that methamphetamine was ingested in another way, such as orally in the form of prescription pills (Desoxyn is a prescription form of methamphetamine hydrochloride). Certain decongestant inhalers also contain an isomer of methamphetamine. Though this compound lacks the abuse potential of its enantiomer (non-superimposable mirror-image molecule), it may still show up as 'meth' on a drug test. Finally, other medications can also cause false positives for methamphetamine on certain tests. If one test gives a positive result, more advanced tests can be used to distinguish between positive results and false positives. If one has used the aforementioned products which contain methamphetamine, this should be brought to the attention of the test administrator.
