NUCLEAR MAGNETIC RESONANCE OF ORGANOPHOSPHORUS COMPOUNDS Ⅱ. 1H,31C AND 31P NMR OF O, O-DIALKYLPHOSPHONATES

Chinese Journal of Magnetic Resonance ›› 1988, Vol. 5 ›› Issue (2): 107-116.

NUCLEAR MAGNETIC RESONANCE OF ORGANOPHOSPHORUS COMPOUNDS Ⅱ. ¹H,³¹C AND ³¹P NMR OF O, O-DIALKYLPHOSPHONATES

Zhang Diankun¹, Li Yugui¹, Wang Guohung¹, Miao Fangming², Liu Xiaolan²

1. Institute of elemento-organic Chemistry, Nankai University Tianjin;
2. Department of Chmisiry, Tianjin Normal Universiiy Shijiazhuang

Received:1987-02-23 Revised:1987-06-17 Published:1988-06-05 Online:2018-01-22

Abstract

Abstract: ¹H, ¹³C and ³¹P NMR data are reported for 21 0,0-dialkyl phosphonates. Stereochemical dependence of ¹H, ¹³C chemical shifts in unequal dialkyl groups and ³¹P ¹³C spin-spin coupling constants were studied and discussed.¹³C spin-lattice relaxation times, T₁, for (CH₃CH₂0)₂P(0)CH(CH₂NO₂) (p-OCH₃C₆H₄) were measured. There are differences between ¹³C spin-lattice relaxation in two ethyl groups because the chemical shift anisotropy made contributions to relaxation.

Key words: 0,0-dialkylphosphonate, NMR spectrum, chiral carbon atom, relaaxation time

Zhang Diankun, Li Yugui, Wang Guohung, Miao Fangming, Liu Xiaolan. NUCLEAR MAGNETIC RESONANCE OF ORGANOPHOSPHORUS COMPOUNDS Ⅱ. ¹H,³¹C AND ³¹P NMR OF O, O-DIALKYLPHOSPHONATES[J]. Chinese Journal of Magnetic Resonance, 1988, 5(2): 107-116.

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NUCLEAR MAGNETIC RESONANCE OF ORGANOPHOSPHORUS COMPOUNDS Ⅱ. ¹H,³¹C AND ³¹P NMR OF O, O-DIALKYLPHOSPHONATES

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