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cis–trans Isomerization under hydrothermal conditions. Synthesis and structure of calcium and barium 4-cyclohexene-1,2-dicarboxylates

Authors :
Contreras, Jines E.
Delgado, J.M.
Díaz de Delgado, Graciela
Source :
Journal of Molecular Structure. Nov2008, Vol. 890 Issue 1-3, p309-316. 8p.
Publication Year :
2008

Abstract

Abstract: Reaction of cis-4-cyclohexene-1,2-dicarboxylic acid with Ca(OH)2 and with BaCO3, under hydrothermal conditions, afforded two new metal dicarboxylates: (cis-4-cyclohexene-1,2-dicarboxylato)calcium(II), [CaC8H8O4] (1) and diaquabis(trans-cyclohex-4-ene-1-carboxylic-2-carboxylato)barium(II), [Ba(C8H9O4)2(OH2)2] (2). Compound (1) is monoclinic, P2 1 /c, with unit cell parameters a =12.6670(14), b =6.7548(7), c =9.5943(10)Å, β =104.108(3)°, V =796.16(15)Å3, Z =4. Compound (2) is orthorhombic, Cmc2 1 , a =28.633(8), b =9.036(3), c =7.438(2), V =1924.4(10)Å3, Z =4. It should be noted that a cis–trans isomerization occurred in the reaction with BaCO3, suggesting an influence of the metal atom in the reaction. [Copyright &y& Elsevier]

Details

Language :
English
ISSN :
00222860
Volume :
890
Issue :
1-3
Database :
Academic Search Index
Journal :
Journal of Molecular Structure
Publication Type :
Academic Journal
Accession number :
34898741
Full Text :
https://doi.org/10.1016/j.molstruc.2008.05.009