Research Article

Coordination Reactions and Noncovalent Interactions of Polyamines with Nucleotides in Binary Systems and with Nucleotides and Copper(II) Ion in Ternary Systems

Table 2

Differences between NMR and NMR chemical shifts for the ligands in the AMP tn-1, AMP) tn-2, CMP/tn-1 and CMP tn-2 systems in relation to the free ligands (ppm).

AMP/tn-1 systemCMP/tn-1 system
pHAMPtn-1CMPtn-1
C(2)C(6)C(5)C(8)C(4)C C1C2C3C(2)C(4)C(5)C(6)C( ) C1C2C3

30.0130.0160.0750.0490.0080.1690.3510.0560.0580.0470.0380.0170.0360.0150.1370.2570.0470.0520.049
50.1490.0680.1400.1300.0190.1610.3530.0750.0520.0340.1190.1990.0550.0080.1070.2320.0530.0400.038
70.0890.0680.0980.0840.0070.0920.3530.0700.0420.0070.0100.0560.0230.0260.2020.1930.0540.0460.048
90.0790.0710.0780.0690.0050.0820.2730.0600.0300.0040.0030.0290.0240.0530.1370.2070.0740.0570.048

AMP/tn-2 systemCMP/tn-2 system
pHAMPtn-2CMPtn-2
C(2)C(6)C(5)C(8)C(4)C C1C2C3C(2)C(4)C(5)C(6)C( ) C1C2C3

30.0210.0170.0080.0160.0060.0510.2270.0620.0570.0590.0320.0250.0180.0290.0840.2130.0730.0590.062
50.2560.1260.1590.1900.0110.1030.2030.0670.0610.0530.0700.0280.0260.0110.1340.2270.0630.0500.049
70.1230.0790.1040.0110.0090.0890.2070.1540.3680.0470.0180.0290.0190.0250.1690.2090.0540.0740.020
90.3920.0880.2780.0400.0030.0990.1970.1070.0060.0170.0030.0360.0220.0310.0540.1980.0870.0570.013