which pair of structures below contain valid resonace structures of a single Compond? All love pairs have been shown. 16:0 a Love lj b. C. N: CON ut D. COM :04
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- Write the Structure Activity Relationship (SAR) of Losartan ? Please write at your own words.For each of the following perrs what relationships exist between the two structures?What is the difference between optical activity/polarimetry vs. (R)/(S) configurations? (+) seems to be clockwise, while (-) seems to be counterclockwise. (R) seems to be clockwise when the lowest priority group is facing the back, while (S) seems to be counterclockwise. Does (R) match up with (+) and (S) match up with (-)? If not, what is the difference? Is it that (R) and (S) are just how we determine the priorities in space while (+) and (-) can be determined via labaratory experiments? How can (R)(-) or (S)(+) exist then? Would this show that the spatial arrangement is incorrect in comparison with what the polarimeter shows?
- what type of isomers are the compounds? which compound have a pair of enantiomers? pls explain and show the enantiomersMost naturally occurring amino acids have chiral centers (the asymmetric a carbon atoms)that are named (S) by the Cahn–Ingold–Prelog convention (Section 5-3). The commonnaturally occurring form of cysteine has a chiral center that is named (R), however.(a) What is the relationship between (R)-cysteine and (S)-alanine? Do they have the oppositethree-dimensional configuration (as the names might suggest) or the same configuration?(b) (S)-Alanine is an l-amino acid (Figure 24-2). Is (R)-cysteine a d-amino acid or anl-amino acid?Answer the following questions regarding the below structures : 1) which form is thermodinamically favored ? 2)For CO stretches in the cis and trans isomers ,do the stretches values give evidence of backbonding? 3)Could these isomers be distinguished by the number of IR active CO stretches (must have dipole change)? How many IR active?
- draw structures for materials A-G near their lettersA new atactic polymer has a Tg of -12°C If the isotactic form was made instead, what is its Tg likely to be higher or lower? why. Would you expect which stereoisomer above will exhibit melting temperature Tm ?How is CCl2F2 polar given that is tetrahedral( highschool level explanation pls)?