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    STUDIA CHEMIA - Issue no. 2%20(Tom%20I%20 / 2010  
         
  Article:   AMMONIUM SALTS OF ORGANOPHOSPHORUS ACIDS. CRYSTAL AND MOLECULAR STRUCTURE OF [Et3NH]+[(SPMe2)(SPPh2)N]- AND [2-{O(CH2CH2)2N(H)CH2}C6H4.

Authors:   ANA MARIA PREDA, MONICA KULCSAR, RICHARD A. VARGA, DRAGOS MARGINEANU, ANCA SILVESTRU.
 
       
         
  Abstract:  

The ammonium salts [Et3NH] L- {L- = [(SPMe2)(SPPh2)N]- (1), Ph2PS2- (2)} were obtained in the reaction between triethylamine and the corresponding organophosphorus acid in a 1:1 molar ratio, while [2-{O(CH2CH2)2N(H)CH2}C6H4] [S2P(OPri)2]- (3) resulted as hydrolysis product in the process of growing crystals of [2-{O(CH2CH2)2N(H)CH2}C6H4SeS2P(OPri)2. Compounds 1 and 2 were characterized by 1H and 31P NMR spectroscopy. Single-crystal X-ray diffraction studies revealed the presence of short intermolecular S···H contacts which result in the formation of dimeric units in 1 and of a layered supramolecular structure in 3.

 

Keywords: onium salts, intermolecular interactions, supramolecular network, dimeric units

 
         
     
         
         
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