Synthetic Route of 33100-27-5, An article , which mentions 33100-27-5, molecular formula is C10H20O5. The compound – 1,4,7,10,13-Pentaoxacyclopentadecane played an important role in people’s production and life.
Odd-even alternation in molecular structure and self-assembling of some macrocyclic polyethers
It was found that the alternation of the melting points of 3n-crown-n retains its amplitude within a large range of the number of oxygen atoms (n?=?4?8) in the crown’s ring. This behavior is different from that observed for the compounds having n-alkyl chain, where the odd-even effect gradually disappears with increasing number of carbon atoms in the chain. So, the molecular structures of crown ethers containing in their rings even or odd number of oxygen atoms essentially differ from each other and the differences do not disappear when the ring increases. On the basis of temperature behavior of the increment of orientational entropy it was found that in liquid 12-crown-4 and 15-crown-5, the molecules self-organize into entities where the molecules are arranged in a head-to-tail way, while the molecules of 18-crown-6 are behaving quite differently: self-assemblies with antiparallel orientation of the molecular dipoles are predominant.
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Chiral Catalysts,
Chiral catalysts – SlideShare