The syntheses of pyrazole amine substituted cyclotriphosphazenes: Spectroscopic and crystallographic characterizations

The aminolysis reactions of hexachlorocyclotriphosphazene, N3P3Cl6 (1a) and di-spirodioxy cyclotriphosphazene derivative N3P3Cl2[OCH2(CF2)2CH2O]2 (1b) with 1-benzyl-1H-pyrazol-3-amine (2) were investigated. Two new pyrazole amine substituted cyclotriphosphazene derivatives (3a, b) were obtained. Both compounds (3a, b) have been characterized by elemental analysis, MALDI-TOF mass spectrometry, 1H, and 31P NMR spectroscopy. The molecular and crystal structures of 3a and 3b were confirmed by single crystal X-Ray crystallography. Hirshfeld surface analyses of the crystal structures of 3a and 3b were investigated to determine the remarkable interactions between the molecules and the packing nature of the molecules in the crystals.