Synthesis and spectroscopic study of platinum, copper and magnesium coordination compounds with 2′-deoxyguanosine-5′-monophosphate

Add time:07/14/2019    Source:sciencedirect.com

2′-Deoxyguanosine-5′-monophosphate disodium (5′-dGMPNa2) salt reacts with divalent platinum, magnesium and copper to give compounds of the type Pt(5′-dGMP)nCl2·xH2O, cis and trans-[Pt(NH3)2(5′-dGMP)2]Cl2, Mg(5′-dGMP)·xH2O and Cu(5′-dGMP)·xH2O, where n = 1, 2, 3 and x = 2−6.Due to the distinct spectral similarities of these compounds with the structurally known N7-bonded Ni(II)- and Co(II)-dGMP compounds, Pt(II), Mg(II) and Cu(II) are also found to be N7-coordinated in this series of mononucleotide compounds. Furthermore, spectroscopic evidence shows that there is no direct Ptphosphate interaction in the Pt(II) nucleotide coordination compounds, whereas such a direct metalphosphate bonding has been observed in the Cu(II) and Mg(II) compounds, discussed here.

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