1 benzyl 4 phenyl 1h 1 2 3 triazole nmr July 8, 2019 16 32 64 128 1-benzyl-4-phenyl-1h-1 2 3-triazole 1-benzyl-4-phenyl-1 2 3-triazole 13 nmr spectroscopy 1 3 5-tri(pyridin-4-yl)benzene