H. Witkowski et al., URACIL QUARTET FORMATION THROUGH NONCOVALENT INTERACTION WITH A NEUTRAL METAL AMMINE COMPLEX, Chemical communications, (14), 1997, pp. 1315-1316
Cocrystallization of 1-methyluracil (Hmura) and trans-[PtCl4(NH3)(2)]
yields an adduct of composition [PtCl4(NH3)(2).2 Hmura with two types
of uracil quartets, one of which is relevant to that formed in tetrapl
ex RNA.