氘标记苯基膦酸二苯酯的γ辐解和质谱研究  

THE RADIOLYSIS OF DEUTERIUM LABELED DIPHENYL PHENYLPHOSPHONATES (d_5-DPPP)

作　　者：盛怀禹 何永海[1] 陈耀焕 屠铁城[2] 董继荣 

机构地区：[1]中国科学院上海有机化学研究所 [2]中国科学院上海原子核研究所

出　　处：《辐射研究与辐射工艺学报》1991年第2期113-117,共5页Journal of Radiation Research and Radiation Processing

摘　　要：本文报道[2,3,4,5,6-~2H_5]苯基膦酸二苯酯(d_5-DPPP)的制备及其γ辐解。采用气相色谱-微波等离子体发射光谱(GC-MPES)测定d_5-DPPP辐解低沸产物的氘含量(D％)及氘碳比(D/C),依此估算出C—P及C—O键的断键几率。低温(77K)及常温γ辐照后DPPP的顺磁共振谱与三苯基磷酸酿及苯基膦酸γ辐照后的ESR谱图极相似,都是三重的三线峰。同时亦对DPPP、d_5-DPPP及其它一些芳基磷(膦)酸酯的质谱图作了比较,并讨论它们在质谱条件下的断键规律。The present paper reports the synthesis and gamma-radiolysis of dip-henyl 2, 3, 4, 5, 6-D_5-phenylphosphonate, The deuterium concentration D% ofthe radiation products was determined by GC-MPES method, the probability of bond-breaking of C-P bond was 0.013, and of O-C bond was 0.987. The ESR spectrameasured after γ-irradiation of DPPP samples at ambient temperature dominated bythat for cyclohexadienyl-type radicals, while the spectra of low-temperature (77K)irradiated DPPP were characteristic of phenyl radicals. The MS spectra of DPPP andd_?-DPPP were measured and compared.

关 键 词：DPPP 辐解 质谱 顺磁共振谱 

分 类 号：O623.624[理学—有机化学]