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  • What does simplest optically active alkene mean? [closed]
    I am confused between whether we will call 2,3-dimethyl-cyclopropene or 3-methylpent-1-ene as simplest optically active alkene Does “simplest” mean aliphatic, or does it mean having least number of
  • Does no optical rotation always implies optical inactivity?
    Wikipedia states that, A racemic mixture, or racemate, is one that has equal amounts of left- and right-handed enantiomers of a chiral molecule So the rotation of plane polarized light is a combined effect of nature of compound and nature of analyte So no rotation doesn't implies that the compound is optically active
  • stereochemistry - Why do only chiral molecules rotate the plane of . . .
    See also: How do Optically Active Compounds Rotate Plane Polarized Light? This is because optical rotation is a chiral phenomenon Take a molecule, and draw arrows depicting the polarization of incoming and outgoing light on it Even if the molecule is achiral, the molecule with the arrows is chiral Chirality can't spring out of nowhere, it can only arise from a chiral process Also, see my
  • organic chemistry - What does it mean if I am unable to write RS . . .
    0 We had to write all possible optically active monochloro derivatives of 2-methylbutane I was unable to write RS configurations for 1 and 3, since they have carbon atoms with more than one same groups attached to them (they are achiral) Does that mean they are optically inactive? P S I’m still a beginner at this
  • What is the optical activity of EDTA-Zinc (II) ion?
    In this compound, the ligand EDTA is apparently optically active according to my textbook But I have found that in similar compounds like $\\ce{[Co(EDTA)]-}$ do not exhibit optical isomerism as in
  • inorganic chemistry - Why are square planar coordination compounds with . . .
    Even though the central atom has 4 different ligands this does not necessarily mean that the compound is optically active The condition for that rather the following (from Wikipedia):
  • Is axis of symmetry considered a true symmetry?
    A compound that does not posses any kind of symmetry is optically active In other words chiral compounds without having any kind of of symmetry are optically active However, this holds true when we refer to plane of symmetry or centre of symmetry, because molecules having axis of symmetry or alternate axis of symmetry are still optically active
  • chirality - Can a chiral molecule be optically inactive? - Chemistry . . .
    Does there exist a chiral compound with zero optical activity? It seems possible that for some (chiral) arrangement of atoms, the optical activity of one section of the molecule could be exactly compensated by another section of the molecule, even if these two sections are not mirror images of each other
  • organic chemistry - How exactly do we superimpose molecules while . . .
    I am struggling with these type of questions where in some cases we rotate a molecule's mirror image by 180 degrees to check superimposability Like when checking any tetrahedral chiral compound
  • What kind of optical activity requires chirality?
    From "Meso compound" in Wikipedia: A meso compound or meso isomer is a non-optically active member of a set of stereoisomers, at least two of which are optically active This means that despite containing two or more stereogenic centers, the molecule is not chiral What is the meaning of "optical activity" in this context?





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