oa South African Journal of Chemistry - Synthesis and Spectral Characterization of Some NewCarbacylamidophosphate Derivatives. Crystal Structures ofCCl3C(O)NHP(O)[NH(C5H9)]2 andCH3C6H4C(O)NHP(O)[NH(C5H9)]2
|Article Title||Synthesis and Spectral Characterization of Some NewCarbacylamidophosphate Derivatives. Crystal Structures ofCCl3C(O)NHP(O)[NH(C5H9)]2 andCH3C6H4C(O)NHP(O)[NH(C5H9)]2|
|© Publisher:||South African Chemical Institute (SACI)|
|Journal||South African Journal of Chemistry|
|Author||Khodayar Gholivand, Ahlam Madani Alizadehgan, Fresia Mojahed and Azam Anaraki Firooz|
|Publication Date||Jan 2007|
|Pages||91 - 101|
|Keyword(s)||Carbacylamidophosphates, Hydrogen bonds, IR spectroscopy and NMR spectroscopy|
Some new carbacylamidophosphate derivatives with the general formula RC(O)NHP(O)[NH(C5H9)]2: (R=CCl3), 1a; (R=CHCl2),2a; (R=CH2Cl), 3a; (R=CF3), 4a; (R=C6H5), 1b; (R=p-Cl-C6H4), 2b; (R=p-Br-C6H4), 3b; (R=p-Me-C6H4), 4b; were synthesized and characterized by 1H, 13C, 31P NMR and IR spectroscopy and elemental analysis. The crystalline solids of 1a and 4b were studied by single crystal X-ray diffraction analysis. The dimeric aggregate and the centrosymmetric dimer formed via intermolecular N-H....O=P and N-H....O=C hydrogen bonds in 1a and 4b, respectively. In all the synthesized molecules, similar spectral patterns were obtained in the 13C NMR spectra for carbon atoms of cyclic amines with 2JPNC = 0 and 3JPNC ranging from 4 to 6 Hz.
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