²é¿´: 1271  |  »Ø¸´: 3
µ±Ç°Ö»ÏÔʾÂú×ãÖ¸¶¨Ìõ¼þµÄ»ØÌû£¬µã»÷ÕâÀï²é¿´±¾»°ÌâµÄËùÓлØÌû

lnikuaix

гæ (ÕýʽдÊÖ)

[ÇóÖú] ÄÇλ¸ø»­¸öN-HºÍC=CµÄ·Ö×ÓÄܼ¶Í¼°¡

ÈçÌ⣬ÎÒ²»ÊÇѧ¼ÆËãµÄ£¬µ«ÊÇÏÖÔÚÏëÓÃÒ»ÕÅ·Ö×ÓÄܼ¶Í¼À´±íʾÕâ¾ä»°The high energy difference between ¦Ð (C=C) and ¦Ò (N-H) orbitals forbids a thermal [2+2]cycloaddition of the N-H bond and the alkene.ÄÄλ¿É·ñ¸ø»­Ò»Ï£¬½ð±Ò±¾ÈË¿ÉÒÔÔÙ×·¼Ó£¬Ï£ÍûÓÐÒ»¸ö»ù×¼Ïߣ¬ÕâÑùºÃÓÐhighµÄ¸Ð¾õ
»Ø¸´´ËÂ¥

» ²ÂÄãϲ»¶

» ±¾Ö÷ÌâÏà¹ØÉ̼ÒÍÆ¼ö: (ÎÒÒ²ÒªÔÚÕâÀïÍÆ¹ã)

» ±¾Ö÷ÌâÏà¹Ø¼ÛÖµÌùÍÆ¼ö£¬¶ÔÄúͬÑùÓаïÖú:

ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû

awmc2008

ÖÁ×ðľ³æ (ÎÄ̳¾«Ó¢)

ѧϰÕß

¡¾´ð°¸¡¿Ó¦Öú»ØÌû

¡ï ¡ï ¡ï ¡ï ¡ï ¡ï ¡ï ¡ï ¡ï ¡ï ¡ï ¡ï
jiaoyixiong(½ð±Ò+2): ¹ÄÀø½»Á÷ 2012-03-11 16:31:55
lnikuaix: ½ð±Ò+10, ¡ï¡ï¡ïºÜÓаïÖú 2012-03-24 11:50:16
¸ÃÍøÕ¾ÊÇÃÀ¹ú¹ú¼Ò±ê×¼Êý¾Ý¿â¡£Äã°Ñ×ÔÓÉ»ùÄܼ¶Í¼¸ø×÷¼ÆËãµÄͬѧ¿´£¬ËûÃÇÂíÉϾÍÃ÷°×ÁË¡£»¹ÓбÈGaussian¸ü×¼µÄÈí¼þ¡£
xuexizhe
4Â¥2012-03-11 10:43:39
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû
²é¿´È«²¿ 4 ¸ö»Ø´ð

awmc2008

ÖÁ×ðľ³æ (ÎÄ̳¾«Ó¢)

ѧϰÕß

¡¾´ð°¸¡¿Ó¦Öú»ØÌû

¡ï ¡ï
¸Ðл²ÎÓ룬ӦÖúÖ¸Êý +1
zh1987hs: »ØÌûÖö¥ 2012-03-10 23:18:40
zh1987hs(½ð±Ò+2): лл 2012-03-10 23:18:45
½¨ÒéÔÚhttp://www.nist.gov/molecular-spectroscopy.cfmÕÒÕÒ£¬Ò²¿ÉÇë×÷¼ÆËãµÄͬѧÓÃGaussianµÈ¼ÆËãһϡ£
xuexizhe
2Â¥2012-03-10 19:50:47
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû

lnikuaix

гæ (ÕýʽдÊÖ)

ÒýÓûØÌû:
Â¥: Originally posted by awmc2008 at 2012-03-10 19:50:47:
½¨ÒéÔÚhttp://www.nist.gov/molecular-spectroscopy.cfmÕÒÕÒ£¬Ò²¿ÉÇë×÷¼ÆËãµÄͬѧÓÃGaussianµÈ¼ÆËãһϡ£

awmc£¬ÕâÍøÕ¾ÊÇÊ²Ã´ÍøÕ¾°¡£¬âÖÓ¢ÎIJ»ÊǺܺ㬲»¹ý¿´×Å˵ÊǹâÆ×µÄ°¡£¬ÎÒ²»ÊÇ¸ã¼ÆËãµÄ£¬ËùÒÔºÜ¶à¼ÆËãÀàµÄ»ù´¡ÖªÊ¶²»¶®£¬Èç¹ûÎÊÁ˺ܰ׳յÄÎÊÌ⣬Çë¼ûÁÂ
3Â¥2012-03-11 00:07:38
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû
×î¾ßÈËÆøÈÈÌûÍÆ¼ö [²é¿´È«²¿] ×÷Õß »Ø/¿´ ×îºó·¢±í
[¿¼ÑÐ] 313Çóµ÷¼Á +3 ËÁÈþ·¡Ò¼22 2026-03-19 3/150 2026-03-21 08:01 by JourneyLucky
[¿¼ÑÐ] 316Çóµ÷¼Á +6 ÁºÜçö© 2026-03-19 6/300 2026-03-21 06:32 by Ecowxq666£¡
[¿¼ÑÐ] 274Çóµ÷¼Á +10 S.H1 2026-03-18 10/500 2026-03-20 23:51 by JourneyLucky
[¿¼ÑÐ] ²ÄÁÏר˶ӢһÊý¶þ306 +7 z1z2z3879 2026-03-18 7/350 2026-03-20 23:48 by JourneyLucky
[¿¼ÑÐ] 321Çóµ÷¼Á +9 ºÎÈó²É123 2026-03-18 11/550 2026-03-20 23:19 by JourneyLucky
[¿¼ÑÐ] ¿¼Ñе÷¼ÁÇóÑ§Ð£ÍÆ¼ö +3 ²®ÀÖ29 2026-03-18 5/250 2026-03-20 22:59 by JourneyLucky
[¿¼ÑÐ] Ò»Ö¾Ô¸Î÷ÄϽ»Í¨ ר˶ ²ÄÁÏ355 ±¾¿ÆË«·Ç Çóµ÷¼Á +5 Î÷ÄϽ»Í¨×¨²Ä355 2026-03-19 5/250 2026-03-20 21:10 by JourneyLucky
[¿¼ÑÐ] Ò»Ö¾Ô¸¼ªÁÖ´óѧ²ÄÁÏѧ˶321Çóµ÷¼Á +11 Ymlll 2026-03-18 15/750 2026-03-20 19:40 by ¶¡¶¡*
[¿¼ÑÐ] 0703»¯Ñ§µ÷¼Á £¬Áù¼¶Òѹý£¬ÓпÆÑо­Àú +13 êØÎõÙâ 2026-03-15 13/650 2026-03-20 19:35 by Dream007008
[¿¼ÑÐ] 261ÇóBÇøµ÷¼Á£¬¿ÆÑо­Àú·á¸» +3 Å£Ä̺Üæ 2026-03-20 4/200 2026-03-20 19:34 by JourneyLucky
[¿¼ÑÐ] 0856µ÷¼Á£¬ÊÇѧУ¾ÍÈ¥ +8 sllhht 2026-03-19 9/450 2026-03-20 14:25 by ÎÞи¿É»÷111
[¿¼ÑÐ] 266Çóµ÷¼Á +5 ÑôÑôÍÛÈû 2026-03-14 10/500 2026-03-19 15:08 by ÑôÑôÍÛÈû
[¿¼ÑÐ] 085600²ÄÁÏÓ뻯¹¤µ÷¼Á 324·Ö +10 llllkkkhh 2026-03-18 12/600 2026-03-19 14:33 by llllkkkhh
[¿¼ÑÐ] 0703»¯Ñ§µ÷¼Á +5 pupcoco 2026-03-17 8/400 2026-03-19 13:58 by houyaoxu
[¿¼ÑÐ] 0817µ÷¼Á +3 ûÓдð°¸_ 2026-03-14 3/150 2026-03-19 09:51 by Xu de nuo
[¿¼ÑÐ] 0703»¯Ñ§336·ÖÇóµ÷¼Á +6 zbzihdhd 2026-03-15 7/350 2026-03-18 09:53 by zhukairuo
[¿¼ÑÐ] 301Çóµ÷¼Á +4 A_JiXing 2026-03-16 4/200 2026-03-17 17:32 by ruiyingmiao
[¿¼ÑÐ] 326Çóµ÷¼Á +4 ŵ±´¶û»¯Ñ§½±êéê 2026-03-15 7/350 2026-03-16 17:11 by ŵ±´¶û»¯Ñ§½±êéê
[¿¼ÑÐ] 326Çóµ÷¼Á +3 mlpqaz03 2026-03-15 3/150 2026-03-16 07:33 by Iveryant
[¿¼ÑÐ] 327Çóµ÷¼Á +6 ʰ¹âÈÎȾ 2026-03-15 11/550 2026-03-15 22:47 by ʰ¹âÈÎȾ
ÐÅÏ¢Ìáʾ
ÇëÌî´¦ÀíÒâ¼û