
%0 Journal Article
%A Johns, SR 
%A Leslie, DR 
%A Willing, RI 
%A Bishop, DG 
%T Studies on chloroplast membranes. III. <sup>13</sup>C chemical shifts and longitudinal relaxation times of 1,2-Diacyl-3-(6-sulpho-&#945;-quinovosyl)-<I>sn</I>-glycerol
%J Australian Journal of Chemistry
%D 1978/01/01
%V 31
%N 1
%P 65-72
%K 
%R https://doi.org/10.1071/CH9780065
%U https://www.publish.csiro.au/paper/CH9780065 
%X 13C Chemical shifts, longitudinal relaxation times and some nuclear Overhauser enhancement factors of the individual carbon atoms in the chloroplast lipid, 1,2-diacyl-3-(6-sulpho-&#945;-quinovosyl)-sn-glycerol (sl), have been measured in the three solvents: methanol[D4], chloroform[D] and water[D2]. Correlation times for the individual carbon atoms calculated from these results have been interpreted in terms of different secondary structures: a monomeric structure in methanol[D4], an inverted micellar structure in chloroform[D] and a bilayer vesicular structure in water[D2].   Substituent shift parameters have been determined for the sulphonic acid group from a series of alkanesulphonic acids and these have been used in the 13C chemical shift assignments in sl and a series of model compounds. 
