| ²é¿´: 607 | »Ø¸´: 4 | |||
| µ±Ç°Ö÷ÌâÒѾ´æµµ¡£ | |||
| µ±Ç°Ö»ÏÔʾÂú×ãÖ¸¶¨Ìõ¼þµÄ»ØÌû£¬µã»÷ÕâÀï²é¿´±¾»°ÌâµÄËùÓлØÌû | |||
deng_jinÌú¸Ëľ³æ (ÖøÃûдÊÖ)
|
[½»Á÷]
[ѧÊõÇóÖú]ÇëѧÎïÀíµÄ³æ³æ°ïæ·ÒëÒ»ÏÂÕâ¶Î»°¡£[ÐüÉͶîÌá¸ßÖÁ25ö½ð±Ò]
|
||
|
ż×î½ü¿´ÎÄÏ×£¬Õâ¶Î»°ÀÏÊÇ¿´²»¶®£¬Ö÷ÒªÊǼ¸¸öרҵÊõÓï²»¶®¡£Å¼Ã»ÓÐѧ¹ýÁ¿×ÓÁ¦Ñ§ºÍ¸ßÄÜÎïÀí£¬Òò´ËÌØµØÀ´ÕâÇë½Ì¸÷λ³æ³æ¡£ ¡°A deeper analysis suggests that the quantum states of molecules that can support natural optical rotation are different from those supporting magnetic optical rotation. Thus, the natural optical rotation observable for an isotropic collection of chiral molecules is a time-even pseudoscalar, while conversely the magnetic optical rotation associated with a collection of achiral molecules is a time-odd axial vector. The former requires quantum states of mixed parity but definite reversality; the latter definite parity but mixed reversality.¡± Çë¸÷λ³æ³æ²»Áߴͽ̡£ [ Last edited by deng_jin on 2007-3-27 at 10:07 ] |
» ²ÂÄãϲ»¶
0703»¯Ñ§
ÒѾÓÐ33È˻ظ´
296Çóµ÷¼Á
ÒѾÓÐ7È˻ظ´
»¯Ñ§¹¤³ÌÓë¼¼Êõרҵһ־Ը¹þ¹¤³Ì 291·ÖBÇø ¹ú¼Ò¼¶´ó´´¸ºÔðÈË ÓÐÒ»×÷ÂÛÎÄ
ÒѾÓÐ13È˻ظ´
²ÄÁÏ290µ÷¼Á
ÒѾÓÐ15È˻ظ´
368»¯Ñ§Çóµ÷¼Á
ÒѾÓÐ14È˻ظ´
µ÷¼Á
ÒѾÓÐ5È˻ظ´
Ò»Ö¾Ô¸Öйú¿ÆÑ§ÔºÉϺ£ÓлúËù£¬Óлú»¯Ñ§356·ÖÕÒµ÷¼Á
ÒѾÓÐ3È˻ظ´
Ò»Ö¾Ô¸¿ó´ó£¬²ÄÁϹ¤³Ìר˶314·Ö£¬0856¿Éµ÷¶¼¿ÉÒÔ
ÒѾÓÐ6È˻ظ´
²ÄÁÏר˶³õÊÔ·Ö332Ò»Ö¾Ô¸Î÷±±¹¤Òµ´óѧ£¬
ÒѾÓÐ6È˻ظ´
ÐÂÒ»´úµç×ÓÐÅÏ¢294Çóµ÷¼Á ²»ÌôѧУ
ÒѾÓÐ6È˻ظ´
sciencegreen
Òø³æ (СÓÐÃûÆø)
- Ó¦Öú: 0 (Ó×¶ùÔ°)
- ½ð±Ò: 183.8
- É¢½ð: 24
- Ìû×Ó: 123
- ÔÚÏß: 15.1Сʱ
- ³æºÅ: 345261
- ×¢²á: 2007-04-14
- רҵ: ºË¼¼Êõ¼°ÆäÓ¦ÓÃ
¡ï ¡ï ¡ï ¡ï ¡ï ¡ï ¡ï ¡ï ¡ï ¡ï ¡ï ¡ï ¡ï ¡ï ¡ï ¡ï ¡ï ¡ï ¡ï ¡ï ¡ï ¡ï ¡ï ¡ï ¡ï
deng_jin(½ð±Ò+10):лл»Ø´ð£¬Ê£ÏµĽð±ÒµÈÎÒÁªÏµ°ßÖñºó²¹ÉÏ¡£
fenghbu(½ð±Ò+15):лл²ÎÓ룬ϣÍû³£À´ÎïÀí°æ¿´¿´£¡
deng_jin(½ð±Ò+10):лл»Ø´ð£¬Ê£ÏµĽð±ÒµÈÎÒÁªÏµ°ßÖñºó²¹ÉÏ¡£
fenghbu(½ð±Ò+15):лл²ÎÓ룬ϣÍû³£À´ÎïÀí°æ¿´¿´£¡
|
Thus, the natural optical rotation observable for an isotropic collection of chiral molecules is a time-even pseudoscalar, while conversely the magnetic optical rotation associated with a collection of achiral molecules is a time-odd axial vector. Òò´Ë£¬ÊÖÕ÷·Ö×Ó£¨ÃÇ£©µÄ¸÷ÏòͬÐԵļ¯ºÏµÄÌìÈ»Ðý¹âµÄ¿É¹Û²âÁ¿ÊÇÒ»¸ö ż¡ªÊ± µÄØÍ±êÁ¿£¬¶øÏà·´µÄÓë·ÇÊÖÕ÷·Ö×Ó£¨ÃÇ£©µÄ¼¯ºÏÏà¹ØµÄ´ÅÖÂÐý¹â£¨µÄ¿É¹Û²âÁ¿£©ÊÇÒ»¸ö Ææ¡ªÊ± µÄÖáʸÁ¿¡£ The former requires quantum states of mixed parity but definite reversality; the latter definite parity but mixed reversality ǰÕßÒªÇóÈ·¶¨·´Ñݵ«»ìºÏÓî³ÆµÄ£¨Á¿×Ó£©Ì¬£¬ºóÕßÒªÇóÈ·¶¨Óî³Æµ«»ìºÏ·´Ñݵģ¨Á¿×Ó£©Ì¬¡£ deng_jinµÄ½âÊ͵ÚÒ»¶ÎÕýÈ·£¬µ«ºóÃæµÄ²»¶Ô¡£ ØÍ±êÁ¿ÊÇÖ¸¾µÏñ£¨·ÇÓî³Æ£¡£©·´ÑݱäºÅµÄÎïÀíÁ¿£¬È缫ʸÁ¿ºÍÖáʸÁ¿³Ë»ý£¬ÈçE*B¡£ØÍ±êÁ¿²»Âú×ãµþ¼ÓÔÀí¡£ ¼«Ê¸Á¿ÔÚÓî³Æ·´ÑÝϱäºÅ£¬ÈçE£¬Âú×ãµþ¼ÓÔÀí¡£ ż¡ªÊ± Ö¸Tʱ¼ä·´ÑÝÖ®ºó²»±ä£¬Ææ¡ªÊ± Ö¸Tʱ¼ä·´ÑÝÖ®ºó±äºÅ¡£ Ö®ËùÒÔÓÐÓî³Æ»ìºÏ̬ÊÇÒòΪÔÚÒ»¶Ñ·Ö×Óϸ÷¸ö·Ö×ÓÂú×ãµÄ¾µÏñ²»Í¬¡£ ʱ¼ä·´ÑÝ»ìºÏ̬ÊÇÒòΪ¸÷¸ö·Ö×Óʱ¼ä·´Ñݺó±äºÅ£¬²»Í¬Ê±¿Ì²»Í¬·Ö×Óʱ¼ä·´Ñݺó״̬²»Í¬£¬ÐγɻìºÏ¡£ ÏÞ¶¨ÊÇÈËΪµÄ£¬¶øÈ·¶¨ÊǹÌÓеġ£ |
4Â¥2007-04-17 09:52:41
deng_jin
Ìú¸Ëľ³æ (ÖøÃûдÊÖ)
- Ó¦Öú: 173 (¸ßÖÐÉú)
- ½ð±Ò: 6837.9
- É¢½ð: 1230
- ºì»¨: 28
- Ìû×Ó: 1139
- ÔÚÏß: 947.8Сʱ
- ³æºÅ: 101090
- ×¢²á: 2005-11-12
- ÐÔ±ð: GG
- רҵ: ÂÌÉ«Óлú»¯Ñ§
¡ï ¡ï
fenghbu(½ð±Ò+2):лл²ÎÓ룬ϣÍû³£À´ÎïÀí°æ¿´¿´£¡
fenghbu(½ð±Ò+2):лл²ÎÓ룬ϣÍû³£À´ÎïÀí°æ¿´¿´£¡
|
´ó¼Ò¿´¿´ÎÒÕâÑù·Òë¶Ô²»¶Ô£º "½øÒ»²½·ÖÎöÈÏΪ£ºÄܹ»²úÉúÌìÈ»Ðý¹â(natural optical rotation)µÄ·Ö×ÓµÄÁ¿×Ó״̬ÓëÄÇЩÄܹ»²úÉú´ÅÖÂÐý¹â(magnetic optical rotation)µÄ·Ö×ÓµÄÁ¿×Ó״̬ÊDz»Í¬µÄ¡£ Òò´Ë£¬¶ÔÓÚÊÖÐÔ·Ö×Ó¸÷ÏòͬÐÔ(isotropic collection)µÄÌìÈ»Ðý¹âµÄÖ±¹ÛÁ¿(the natural optical rotation observable)ÊÇһżʱα±êÁ¿(a time-even pseudoscalar)£¬¶øÓëÖ®Ïà·´µÄÊǶÔÓÚ·ÇÊÖÐÔ·Ö×Ó×÷ÓòúÉúµÄ´ÅÖÂÐý¹âÊÇÒ»ÆæÊ±ÖáÏòÁ¿(a time-odd axial vector)¡£ ǰÕßÒªÇó»ìºÏÓî³Æµ«ÏÞ¶¨·´ÑÝ(mixed parity but definite reversality)µÄÁ¿×Ó״̬£»ºóÕßÒªÇóÏÞ¶¨Óî³Æµ«»ìºÏ·´ÑÝ(definite parity but mixed reversality)µÄÁ¿×Ó״̬¡£" ÎÒ½«²»Ã÷°×µÄרҵÊõÓï¸ø³öÁËÓ¢Îĵ¥´Ê£¬ÌرðÊǶԡ°»ìºÏÓî³Æµ«ÏÞ¶¨·´ÑÝ(mixed parity but definite reversality)¡±ÒÔ¼°¡°ÏÞ¶¨Óî³Æµ«»ìºÏ·´ÑÝ(definite parity but mixed reversality)¡±µÄÀí½â¡£ÎÒµÄÀí½âÊÇ£ºÌìÈ»Ðý¹âµÄ¡°»ìºÏÓî³Æµ«ÏÞ¶¨·´ÑݵÄÁ¿×Ó״̬¡±ÊÇÔÚÓî³ÆËã·ûP×÷ÓÃÏ·½Ïòµßµ¹£¨¼´¿Õ¼ä·´×ª£©¶øÔÚʱ¼ä·´ÑÝËã·ûT×÷ÓÃÏ·½Ïò²»±ä£»¶ø´ÅÖÂÐý¹âµÄ¡°ÏÞ¶¨Óî³Æµ«»ìºÏ·´ÑݵÄÁ¿×Ó״̬¡±ÊÇÔÚÓî³ÆËã·ûP×÷ÓÃÏ·½Ïò²»±ä¶øÔÚʱ¼äËã·ûT×÷ÓÃÏ·½Ïòµßµ¹£¨¼´Ê±¼ä·´ÑÝ£©¡£ ÎÒµÄÕâЩÀí½âÊǸù¾Ý£º µç³¡EÊÇżʱ¼«Ê¸Á¿(time-even polar vector)£¬ÆäÔÚÓî³ÆËã·ûP×÷ÓÃÏ·½Ïòµßµ¹£¬¶øÔÚʱ¼ä·´ÑÝËã·ûT×÷ÓÃÏ·½Ïò²»±ä£»¶ø´Å³¡BÊÇÆæÊ±ÖáʸÁ¿(time-odd axial vector)£¬ÆäÔÚÓî³ÆËã·ûP×÷ÓÃÏ·½Ïò²»±ä£¬¶øÔÚʱ¼ä·´ÑÝËã·ûT×÷ÓÃÏ·½Ïòµßµ¹¡£ Èç¹ûÎÒµÄÀí½âûÎÊÌ⣬ÄÇô£¬Å¼Ê±Î±±êÁ¿(time-even pseudoscalar)Óëżʱ¼«Ê¸Á¿(time-even polar vector)ÔÚʱ¼ä·´ÑÝËã·ûT×÷ÓÃÏÂÒÔ¼°Óî³ÆËã·ûP×÷ÓÃÏÂÓÖÓкÎÇø±ðÄØ£¨¸ù¾ÝÎÒµÄÀí½â£¬Ã»ÓÐÇø±ð£¬ºÇºÇ¡¡£©£¿ [ Last edited by deng_jin on 2007-3-27 at 09:33 ] |
2Â¥2007-03-27 09:01:14
juloong
ľ³æ (Ö°Òµ×÷¼Ò)
XÉäÏßÑÜ/É¢Éä²âÊÔ
- Ó¦Öú: 103 (¸ßÖÐÉú)
- ½ð±Ò: 6206.5
- É¢½ð: 1920
- ºì»¨: 98
- Ìû×Ó: 3127
- ÔÚÏß: 2041.4Сʱ
- ³æºÅ: 275864
- ×¢²á: 2006-09-02
- רҵ: °ëµ¼Ìå²ÄÁÏ
3Â¥2007-03-27 09:31:06
sciencegreen
Òø³æ (СÓÐÃûÆø)
- Ó¦Öú: 0 (Ó×¶ùÔ°)
- ½ð±Ò: 183.8
- É¢½ð: 24
- Ìû×Ó: 123
- ÔÚÏß: 15.1Сʱ
- ³æºÅ: 345261
- ×¢²á: 2007-04-14
- רҵ: ºË¼¼Êõ¼°ÆäÓ¦ÓÃ
5Â¥2007-04-17 09:53:21













»Ø¸´´ËÂ¥