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Gauche relationship, three bond

Fig. 28. Molecular structure of the ttgg crystal form of sPP. a and b show the relationship between the methylene and methine carbons separated by three bonds, in trans (a) and gauche (b). c shows the side view and the view from the c axis of the molecular sequence in the ttgg crystal form. The closed and open circles in the main chain show the methylene and methine carbons, respectively. The methylene carbons marked as A and B are the methylene carbon with two gauche effects (the gt-gt carbon) and that without gauche effect (the tg-gt carbon), respectively. See the text... Fig. 28. Molecular structure of the ttgg crystal form of sPP. a and b show the relationship between the methylene and methine carbons separated by three bonds, in trans (a) and gauche (b). c shows the side view and the view from the c axis of the molecular sequence in the ttgg crystal form. The closed and open circles in the main chain show the methylene and methine carbons, respectively. The methylene carbons marked as A and B are the methylene carbon with two gauche effects (the gt-gt carbon) and that without gauche effect (the tg-gt carbon), respectively. See the text...
Figure 9.36 shows Newman projections of the three low-energy conformers for the Ca-Cp bond of an AMX amino acid residue within a peptide or protein. The gauche relationship should give a small coupling (<6 Hz) and the anti relationship should give a... [Pg.384]

See other pages where Gauche relationship, three bond is mentioned: [Pg.466]    [Pg.26]    [Pg.52]    [Pg.53]    [Pg.642]    [Pg.26]    [Pg.696]    [Pg.126]    [Pg.453]    [Pg.203]    [Pg.95]    [Pg.375]    [Pg.143]    [Pg.95]    [Pg.57]    [Pg.122]    [Pg.105]    [Pg.240]    [Pg.37]    [Pg.102]    [Pg.126]    [Pg.119]    [Pg.173]    [Pg.149]    [Pg.114]   
See also in sourсe #XX -- [ Pg.22 , Pg.24 ]



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