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Göteborgs universitets publikationer

Spontaneous Generation of Chirality in Simple Diaryl Ethers.

Författare och institution:
Anders Lennartson (Institutionen för kemi och kemiteknik, Polymerteknologi, Chalmers); Anna Hedström (Institutionen för kemi och molekylärbiologi); Mikael Håkansson (Institutionen för kemi och molekylärbiologi)
Publicerad i:
Chirality, 27 ( 7 ) s. 425-9
ISSN:
1520-636X
Publikationstyp:
Artikel, refereegranskad vetenskaplig
Publiceringsår:
2015
Språk:
engelska
Fulltextlänk:
Sammanfattning (abstract):
We studied the spontaneous formation of chiral crystals of four diaryl ethers, 3-phenoxybenzaldehyde, 1; 1,3-dimethyl-2-phenoxybenzene, 2; di(4-aminophenyl) ether, 3; and di(p-tolyl) ether, 4. Compounds 1, 3, and 4 form conformationally chiral molecules in the solid state, while the chirality of 2 arises from the formation of supramolecular helices. Compound 1 is a liquid at ambient temperature, but 2-4 are crystalline, and solid-state CD-spectroscopy showed that they could be obtained as optically active bulk samples. It should be noted that the optical activity arise upon crystallization, and no optically active precursors were used. Indeed, even commercial samples of 3 and 4 were found to be optically active, giving evidence for the ease at which total spontaneous resolution may occur in certain systems.
Ämne (baseras på Högskoleverkets indelning av forskningsämnen):
NATURVETENSKAP ->
Kemi
NATURVETENSKAP ->
Kemi ->
Organisk kemi
Nyckelord:
CD-spectroscopy;
Postens nummer:
228452
Posten skapad:
2015-12-16 11:42
Posten ändrad:
2016-08-22 09:07

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