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The Reactivity of Cyameluric Chloride C 6 N 7 Cl 3 towards Phosphines and Phosphine Oxides
Author(s) -
Posern Christian,
Böhme Uwe,
Kroke Edwin
Publication year - 2018
Publication title -
zeitschrift für anorganische und allgemeine chemie
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.354
H-Index - 66
eISSN - 1521-3749
pISSN - 0044-2313
DOI - 10.1002/zaac.201700298
Subject(s) - nitromethane , chemistry , reactivity (psychology) , phosphine , crystallography , raman spectroscopy , thermal decomposition , crystal structure , molecule , thermal stability , hydrogen bond , single crystal , triazine , chloride , inorganic chemistry , medicinal chemistry , organic chemistry , catalysis , medicine , physics , alternative medicine , pathology , optics
Organophosphines ( R 2 PH) and phosphineoxides ( R 2 OPH) show a very high reactivity towards cyameluric chloride C 6 N 7 Cl 3 . For example, 2,4,6‐trisdiphenylphosphino‐tri‐ s ‐triazine ( 1 ) forms quantitatively within a few seconds. Tris‐diphenylphosphinsulfide‐ s ‐heptazine ( 2 ) was obtained by reaction of 1 with sulfur. These compounds represent a new class of s ‐heptazine derivatives which tend, unlike their s ‐triazine analogues, to decompose in solution. 1 forms crystals with nitromethane, which were analysed by single‐crystal X‐ray diffraction. The nitromethane molecules fill the gaps in the crystal lattice supported by hydrogen bonds, C–H ··· π ring, and N–O ··· π ring interactions. All compounds were characterized by 1 H, 13 C and 31 P NMR and vibrational (FT‐IR, Raman) spectroscopy. The thermal stability of selected derivatives was measured by TG, indicating surprisingly low thermal decomposition temperatures.