Crystal structure of cholesteryl decanoate.
1979; Elsevier BV; Volume: 20; Issue: 6 Linguagem: Inglês
10.1016/s0022-2275(20)40028-8
ISSN1539-7262
Autores Tópico(s)Crystal structures of chemical compounds
ResumoCholesteryl decanoate (C3,HS402) is monoclinic, space group P21, with cell dimensions a = 12.931 (6), b = 9 .0 6 6 ( 2 ) , c = 3 0 . 2 2 ( 1 ) ~, ~= 9 1 . 1 4 ( 4 ) " , a n d Z = 4 .T h e atomic coordinates from cholesteryl laurate were used in an initial trial structure which was refined by block diagonal least-squares methods with 1846 observed X-ray reflections (R = 0.129).Molecules A and B have almost fully extended conformations, except at the ester bonds and towards the end of the decanoate B chain.The molecules are arranged in antiparallel array forming monolayers of thickness dool = 30.22A, with the molecular long axis making an angle of about 67" with the layer interface.The crystal structure is very similar to that of cholesteryl nonanoate and cholesteryl 1aurate.-
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