[ trans -en 2 Os ( η -H 2 )] 2 + as an 1 H NMR probe for the coordination of some anticancer metal complexes to deoxyguanotide

The molecular hydrogen complex of osmium, [trans-en2Os (ŋ-H2)]2+ (en, entlylendediamine) is a new1H NMR recognition probe for biomolecules. By using this probe, the coordination between deoxyguanylic acid (dGMP) and four metal anticancer complexes, titanocene dichloride, (C2H5)2SnCl2(phen). (C2H5)2SnCl2 and cisplatin are studied in D2O under the condition near the physiological one. The results show that the former three complexes mainly and...