Spectroscopic and crystal structure data of the alkali-, thallium (I) and onic-salts of dimethyl-N-trichloracetylamidophosphate
摘要:
Alkali-, thallium (1) and onic-salts of dimethyl-N-trichloracetylamidophosph ate [HL] were synthesized from non-aqueous solutions and characterized by means of X-ray diffraction, IR and H-1 NMR spectroscopy. An ionic type of metal-ligand interaction was determined in Na[L] (1), Rb[L] (2) and Tl[L] (3). Several compounds containing the tetraphenylphosphonium cation, such as PPh4[L] (4), (PPh4)2[L]Br center dot H2O (5) and (PPh4)(2)[Na4L6] (6), were obtained by an exchange reaction between PPh4Br and (1) in different molar ratios. Compound 6 may be considered as the first example of an anionic complex of an alkali element in the coordination chemistry of carbacylamidophosphates. Synthesis and investigation of [SbPh4L] (7) allowed the determination of the preferable donor center of the L- ligand (the oxygen atom of the phosphoryl group). (c) 2005 Elsevier Ltd. All rights reserved.