Crystal Structure of Curcumenol: Evidence of Asymmetric O–H...O (bridged) Hydrogen-Bonded Closed Dimer

Autor:	Nongnuch Muangsin, Amorn Petsom, Nattaya Ngamrojnavanich, Narongsak Chaichit, Sophon Roengsumran, S. Onanong
Rok vydání:	2004
Předmět:	Hydrogen Stereochemistry Hydrogen bond Dimer chemistry.chemical_element Ether Crystal structure Inorganic Chemistry Hexane chemistry.chemical_compound Crystallography chemistry Materials Chemistry Molecule Physical and Theoretical Chemistry Monoclinic crystal system
Zdroj:	Journal of Structural Chemistry. 45:293-297
ISSN:	0022-4766
DOI:	10.1023/b:jory.0000048881.57572.ef
Popis:	Curcumenol, C15H22O2, was isolated from Globba malaccensis Ridl. The compound was crystallized from ethylacetate/hexane solution in the monoclinic system, space group C2, with cell dimensions a = 16.8467(4) A, b = 7.6799(2) A, c = 11.8613(10) A, β = 115.9970(10)°. The molecules form a distorted centrosymmetric dimer linked by hydrogen bonds between the hydroxyl O2 atom and the bridged O1 ether atom (O2...O1(−x+2, y, −z+1), 2.8297(15) A; ∠(O2–H2O–O1), 169(2)°). This is an interesting example of an O–H...O (bridged ether) asymmetric hydrogen-bonded dimer.
Databáze:	OpenAIRE
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