1 9BS 2-(pyridin-2-yl)pyrimidine 1.000 2 0BP 2,2'-bipyridine 0.846 3 F0Z 2-(1,4,5,6-tetrahydropyrimidin-2-yl)benzenethiol 0.786 4 T63 2-phenylpyrimidin-5-ol 0.786 5 EI3 5-methyl-2-(5-methylpyridin-2-yl)pyridine 0.733 6 PHN 1,10-phenanthroline 0.733 7 P4L 2-pyridin-2-yl-7,8-dihydro-5h-thiopyrano[4,3-D]pyrimidin-4-ol 0.706