The X-ray crystal structure of 2,4-bis(4-methoxyphenoxy) pyrimidine

The X-ray crystal structure of 2,4-bis(4-methoxyphenoxy)pyrimidine, C18H16N2O4 was stabilised by the hydrogen bonding and van der Waal forces. The C-N bond in the pyrimidine moiety is shortened indicating of immonium character and good hydrogen bond donor potential. Both the phenyl rings are nearly perpendicular to the pyrimidine rings. The dihedral angles between the phenyl rings and the pyrimidine ring are 85.6(1) and 87.2(1)degrees. In the crystal packing, the pyrimidine rings stack with the pyrimidine rings and phenyl rings stack with the phenyl rings. The weak C-H center dot center dot center dot O interactions and pi-pi stacking interactions generate chains of molecules that are linked into sheets about the inversion centres.