#学习打卡 #看电影学英语 #英语台词 The last straw breaks the camel's back.最后一根稻草压断骆驼的背。_3xqpa 00:16 #学习打卡 #看电影学英语 #英语台词_3x2bubbqwznb86c 00:16 #学习打卡 #看电影学英语 #英语台词 you don't know the first thing about me_3x2tm36ruwtwytu 00:19 #学习...
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After the solution was heated to 50 C, ZnBr2 (8.6 g, 38.1 mmol) was added. The solution of 1,1,1,3,3,3-hexa- methyldisilazane (HMDS) (12.1 mL, 57.2 mmol) in benzene (100 mL) was added dropwise into it at 80 C, and refluxed for 12 h with stirring at this tem- pe...
The unstable parent compound of the sulfur diimides, S(NH)2 (1), has been obtained in solution by stoichiometric protonation of the anion SN22- in K2SN2 with acetic acid. An analogous protonation of the salts S(NR)(NK) leads to the m onosubstituted sulfur diimides S(NR)(NH) ...
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