摘要:
The relationship between NMR chemical shifts of adenine ring protons of low concentrations of 9,9'-(alkane-alpha,omega-diyl)diadenine and the length of the polymethylene chains has been investigated in buffer solutions at pD 1.0, 7.0 and 13.0 and in organic solvents such as CD3OD, (CF3)(2)CDOD, [H-2(6)]dimethyl sulfoxide and CF3COOD. The chemical shifts were compared with those of 9-(omega-bromoalkyl)adenine.