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xiaomuyu2010
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- ·ÒëEPI: 13
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- ×¢²á: 2009-12-31
2Â¥2010-10-07 14:44:18
pangshaofeng06
½ð³æ (СÓÐÃûÆø)
ÖÁ×ðľ³æ
- Ó¦Öú: 2 (Ó×¶ùÔ°)
- ½ð±Ò: 56.3
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ÎÒ¸øÄãÕâÒ»¶ÎÎÄ×Ö£¬Äã´ÓÉÏÏÂÎÄ£¬·ÖÎöһϣ¬ÒòΪÄãµÄ·ÒëÎÒ»¹ÊDz»Ì«Àí½â¡£Ð»Ð» Preparation of 1-(N2)2: Method 2. A 50 mL round-bottomed flask was charged with 0.102 g (0.15 mmol) of 1-Br2 and approximately 30 mL of diethyl ether. The resulting blue suspension was cooled to -35 ¡ãC in the drybox freezer. Via microsyringe, 0.293 mL (0.293 mmol) of a 1.0 M solution of NaBEt3H in toluene was added to the reaction flask. After being stirred under a N2 atmosphere at ambient temperature for 3 h, the green-purple solution was filtered through Celite, and the volatiles were removed from the filtrate in vacuo. Recrystallization of the resulting residue from pentane at -35 ¡ãC afforded analytically and spectroscopically pure 1-(N2)2. |

3Â¥2010-10-07 14:50:10
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4Â¥2010-10-07 15:30:12
yihua8808
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5Â¥2010-10-07 15:51:35
pangshaofeng06
½ð³æ (СÓÐÃûÆø)
ÖÁ×ðľ³æ
- Ó¦Öú: 2 (Ó×¶ùÔ°)
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- ÔÚÏß: 160.7Сʱ
- ³æºÅ: 458358
- ×¢²á: 2007-11-13
- ÐÔ±ð: MM
- רҵ: Óлú»¯Ñ§

6Â¥2010-10-07 16:18:22
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ÈÙÓþ°æÖ÷ (ÎÄ̳¾«Ó¢)
- ·ÒëEPI: 323
- Ó¦Öú: 91 (³õÖÐÉú)
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- ½ð±Ò: 19133.1
- É¢½ð: 40372
- ºì»¨: 275
- ɳ·¢: 183
- Ìû×Ó: 25427
- ÔÚÏß: 1083.6Сʱ
- ³æºÅ: 1034379
- ×¢²á: 2010-06-02
- ÐÔ±ð: GG
- רҵ: Ò©ÎïÉè¼ÆÓëÒ©ÎïÐÅÏ¢
- ¹ÜϽ: µ¼Ê¦ÕÐÉú

7Â¥2010-10-07 16:24:58









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