Carbon atoms that have four nonidentical substituents are referred to as asymmetric carbon atoms. Asymmetric carbon are specific examples of a stereogenic center.
In other words a carbon atom that has four different elements or compounds bonded to its a stereogenic center.
The center of a tornado.
The location in the center of a map is often referred to as the "map center" or the "center point." It is where the horizontal and vertical axes intersect, indicating the point of balance within the map.
The center of gravity of Earth is at its core, which is near its geometric center. It is the point where the gravitational pull on an object can be considered to act.
it is the field that atract our body toward it by hight and wightANS2:The center of gravity is synonymous with the center of mass and it is located near the geometric center of the planet.
As you get farther from the center of Earth, your weight willDECREASE
A stereogenic center in a molecule can be identified by looking for a carbon atom that is bonded to four different groups. This carbon atom is called a chiral center, and it is the key feature that makes a molecule chiral.
Glyceraldehyde has one stereogenic center, which is the carbon atom bonded to four different groups. It exists in two enantiomeric forms based on the arrangement of these groups around the stereogenic center.
Stereogenic centers in a molecule can be determined by identifying carbon atoms that are bonded to four different groups. These carbon atoms are called chiral centers and are the stereogenic centers in the molecule.
In 2-bromobutane, the carbon atom bonded to the bromine atom (CHBrCH3) is the stereogenic center. To determine its optical activity, you need to analyze if there is a plane of symmetry or a center of symmetry within the molecule. If the molecule is chiral (lacks a plane of symmetry or center of symmetry), it will be optically active.
A stereogenic axis is a specific type of stereocenter in a molecule where the rotation around a bond leads to different spatial arrangements of substituents, resulting in stereoisomers. This concept is often encountered in compounds with restricted rotation, such as those containing double bonds or certain cyclic structures. In a stereogenic axis, the configuration can affect the molecule's properties and reactivity, making it significant in stereochemistry. Examples include certain allenes or biphenyl derivatives where rotation is hindered.
The number of chiral center of tetracycline is 5 .. there are 5 chiral carbons.If there is confusion about the 25=32 Remark, the previous writer was using the equation- 2 to the power of n= then the number of possible stereoisomers, where n is the number of stereogenic centers, hence 2 to the power of 5 is 32.
Epimers are two diastereomers that differ at one stereogenic center (a chiral carbon). An anomer is is an epimer that is created after cyclization.-that is the new sterogenic center is created by a cyclization reaction.Added:This above might be true, but is an answer to the OTHER question:'Why all anomers are epimers but notall epimers are anomers'in stead of the original question:'Why all anomers are epimers but allepimers are not anomers'This origional is not fully logic when the ambiguous word 'all' is wrongly interpreted.
Epimers are a specific type of diastereomer that differ in configuration at only one specific stereogenic center. This term is commonly used in carbohydrate chemistry, where sugars can exist in multiple forms that differ at one carbon atom. For example, glucose and galactose are epimers of each other because they differ at the C-4 carbon. Epimers have distinct biochemical properties and can participate in different metabolic pathways.
A useful rule for the specifying of absolute configuration of allenes alkylidenecycloalkanes and other organic complex systems The Noroozi Rule is useful method for the specifying of absolute configuration of allenes, spiranes, alkylidenecycloalkanes, hexahelicenes, biphenyles and trans-cyclooctenes. see URL: chem.sci.utsunomiya-u.ac.jp/v9n1/noroozi/noroozi.pdf
A racemic mixture contains equal amounts of two enantiomers, resulting in no overall optical activity. In contrast, a meso compound is a molecule with chiral centers but possesses an internal plane of symmetry, making it optically inactive despite having stereogenic centers.
take center stage(He / She) likes to be the center of attention(His / Her) views are right of center, (or left of center)centerpiececenterfoldthe nerve center of the corporationcenter fieldat the center ofshopping center, recreation center, town center etc.at the center of the controversyfront and centercenter of gravityto center around (as in The investigation centered around the parents,)
center