24СʱÈÈÃŰæ¿éÅÅÐаñ    

²é¿´: 3626  |  »Ø¸´: 45

coolrainbow

ľ³æ (ÖøÃûдÊÖ)

δÀ´¹ú¼Ò¶³Á¹

¡ï
Сľ³æ(½ð±Ò+0.5):¸ø¸öºì°ü£¬Ð»Ð»»ØÌû½»Á÷
ÒýÓûØÌû:
Originally posted by mchen10 at 2010-12-08 04:25:02:

actually B1 and B2 are equivalent, depends on way you define x and y. It will be B1 in one program and B2 in another sometimes, but both are right..

However, in the coordinate system defined within gaussview, it incorrectly identified the B1 and B2 states.
¼¼Êõ²©¿Í£ºhttp://hi.baidu.com/coolrainbow/blog
31Â¥2010-12-08 08:06:39
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû

8tao7

ľ³æ (СÓÐÃûÆø)

¡ï
Сľ³æ(½ð±Ò+0.5):¸ø¸öºì°ü£¬Ð»Ð»»ØÌû½»Á÷
ÒýÓûØÌû:
Originally posted by mchen10 at 2010-12-08 04:25:02:

actually B1 and B2 are equivalent, depends on way you define x and y. It will be B1 in one program and B2 in another sometimes, but both are right..

Yes, you are right. I found B1 in Gaussian, while B2 in ADF. Of course, the distribution of B1 and B2 orbitals is the same. When I rotated the system 45 degree in ADF, the B1 is output.
ÓÐÐÅÑö£¬ÓÐÄ¿±ê£¬Ò»²½²½µØ×ߣ¬×îÖÕ»áʵÏֵģ¡
32Â¥2010-12-08 08:06:51
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû

ykwang

½ð³æ (ÕýʽдÊÖ)

¡ï
Сľ³æ(½ð±Ò+0.5):¸ø¸öºì°ü£¬Ð»Ð»»ØÌû½»Á÷
ÒýÓûØÌû:
Originally posted by mchen10 at 2010-12-08 04:25:02:

actually B1 and B2 are equivalent, depends on way you define x and y. It will be B1 in one program and B2 in another sometimes, but both are right..

ÔÚÌÖÂÛ²»¿ÉÔ¼±íʾµÄ±ê¼Çʱ£¬¹ØÓÚ·Ö×Ó×ø±êϵµÄѡȡ²¢²»ÊÇËæÒâµÄ£¬¶øÊÇÓÐÆÕ±é½ÓÊܵĹæÔò¿ÉÑ­£¬Ïê¼û£ºM. °ÂÇÕ£¬H. H. ÑÅ·Ñ Öø£¬Ðì¹ãÖÇ Ò룬¡¶¶Ô³ÆÐÔ¡¢¹ìµÀºÍ¹âÆ×¡·£¬¿ÆÑ§³ö°æÉ磬1980, pp119-122¡£ÀýÈ磬¶ÔÓÚH2O¶øÑÔ£¬·Ö×ÓÆ½Ãæ¹æ¶¨ÎªYZÃæ£¬¶ø²»ÄÜËæÒâÖ¸¶¨ÎªXZÆ½Ãæ¡£°´ÕÕÕâÒ»Ô¼¶¨£¬B1ºÍB2ÊÇÃ÷È·µÄ¡£
Nothing_Is_Impossible!
33Â¥2010-12-08 22:01:37
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû

mchen10

½ð³æ (ÕýʽдÊÖ)

¡ï
Сľ³æ(½ð±Ò+0.5):¸ø¸öºì°ü£¬Ð»Ð»»ØÌû½»Á÷
ÒýÓûØÌû:
Originally posted by ykwang at 2010-12-08 22:01:37:


ÔÚÌÖÂÛ²»¿ÉÔ¼±íʾµÄ±ê¼Çʱ£¬¹ØÓÚ·Ö×Ó×ø±êϵµÄѡȡ²¢²»ÊÇËæÒâµÄ£¬¶øÊÇÓÐÆÕ±é½ÓÊܵĹæÔò¿ÉÑ­£¬Ïê¼û£ºM. °ÂÇÕ£¬H. H. ÑÅ·Ñ Öø£¬Ðì¹ãÖÇ Ò룬¡¶¶Ô³ÆÐÔ¡¢¹ì ...

please enlighten me, what is THE RULE?
¸üÍ´¿àµÄÊÇÃÎûÐÑ·ÒѾ­²»ÄÜ×ßÁË
34Â¥2010-12-09 01:54:41
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû

ykwang

½ð³æ (ÕýʽдÊÖ)

¡ï
Сľ³æ(½ð±Ò+0.5):¸ø¸öºì°ü£¬Ð»Ð»»ØÌû½»Á÷
ÒýÓûØÌû:
Originally posted by mchen10 at 2010-12-09 01:54:41:
please enlighten me, what is THE RULE?

OK, I had thought that you may understand Chinese though you may not speak it. Concerning the rules about how to correctly assign the Cartesian coordinate axes to the symmetry ones of a molecule, please refer the following book:

"Symmetry, Orbitals and Spectra", Milton Orchin and  Hans H. Jaffe, John Wiley, 1971. [pp 119-122 in Chinese version. Sorry, I do not know the correct page numbers in English version of the book]
Nothing_Is_Impossible!
35Â¥2010-12-09 09:09:07
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû

mchen10

½ð³æ (ÕýʽдÊÖ)

¡ï
Сľ³æ(½ð±Ò+0.5):¸ø¸öºì°ü£¬Ð»Ð»»ØÌû½»Á÷
ÒýÓûØÌû:
Originally posted by ykwang at 2010-12-09 09:09:07:


OK, I had thought that you may understand Chinese though you may not speak it. Concerning the rules about how to correctly assign the Cartesian coordinate axes to the symmetry ones of a molecul ...

Sorry for the inconvenience, it's just I cannot type Chinese in my office.

The problem here is: what on earth is the rule for choosing the plane? Is it simple enough that can be commonly accepted? Why popular programs don't always follow the rule even though they are commonly acknowledged? How about more complicated system with C2v symmetry?

Maybe you are right. But I am only be convinced with more proof and details. It is not possible that everyone will buy such book and read it.

[ Last edited by mchen10 on 2010-12-9 at 10:51 ]
¸üÍ´¿àµÄÊÇÃÎûÐÑ·ÒѾ­²»ÄÜ×ßÁË
36Â¥2010-12-09 10:31:49
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû

ykwang

½ð³æ (ÕýʽдÊÖ)

¡ï
Сľ³æ(½ð±Ò+0.5):¸ø¸öºì°ü£¬Ð»Ð»»ØÌû½»Á÷
ÒýÓûØÌû:
Originally posted by mchen10 at 2010-12-09 10:31:49:
Sorry for the inconvenience, it's just I cannot type Chinese in my office.
The problem here is: what on earth is the rule for choosing the plane? Is it simple enough that can be commonly acc ...

Ê×ÏÈÕë¶Ô³ÌÐòµÄÎÊÌâ˵¼¸¾ä£º

Á¿×Ó»¯Ñ§³ÌÐò°üµÄÖ÷Ö¼Êǽâ¾ö¸´ÔӵļÆËãÎÊÌ⣬¹ÊÔÚһЩϸ½ÚÉÏ×öµÃ²¢²»ºÃ¡£¾ßÌåÄÜ×öµ½Ê²Ã´³Ì¶ÈÈ¡¾öÓÚ³ÌÐòÔ±µÄ×¨ÒµËØÖÊ£¬¶ø²»Í¬³ÌÐò°ü×÷ÕßµÄ×¨ÒµËØÖÊÈ´²î±ðºÜ´ó¡£Äã²»ÄÜÖ¸Íû³ÌÐò°ÑÒ»Çж¼¸ã¶¨£¬ÒòΪºóÐø·ÖÎö²»ÊdzÌÐòµÄÎÊÌ⣬¶øÊÇʹÓÃÕßµÄÎÊÌ⣬ÍêÈ«°Ñ³ÌÐò×÷Ϊ¡°ºÚÏ䡱À´Ê¹ÓÃÊǺÜΣÏյġ£

Æä´Î°ÑÉÏÃæÌáµ½µÄÓйØÔ¼¶¨¿½±´ÈçϹ©²Î¿¼£º





[ Last edited by ykwang on 2010-12-9 at 16:53 ]
Nothing_Is_Impossible!
37Â¥2010-12-09 16:52:12
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû

mchen10

½ð³æ (ÕýʽдÊÖ)

¡ï
Сľ³æ(½ð±Ò+0.5):¸ø¸öºì°ü£¬Ð»Ð»»ØÌû½»Á÷
ÒýÓûØÌû:
Originally posted by ykwang at 2010-12-09 16:52:12:


Ê×ÏÈÕë¶Ô³ÌÐòµÄÎÊÌâ˵¼¸¾ä£º

Á¿×Ó»¯Ñ§³ÌÐò°üµÄÖ÷Ö¼Êǽâ¾ö¸´ÔӵļÆËãÎÊÌ⣬¹ÊÔÚһЩϸ½ÚÉÏ×öµÃ²¢²»ºÃ¡£¾ßÌåÄÜ×öµ½Ê²Ã´³Ì¶ÈÈ¡¾öÓÚ³ÌÐòÔ±µÄ×¨ÒµËØÖÊ£¬¶ø²»Í¬³ÌÐò°ü×÷ÕßµÄ×¨ÒµËØÖÊÈ´²î±ðºÜ´ó¡£Äã²»ÄÜÖ¸Íû³ÌÐò°Ñ ...

thanks

it surely clears the air a lot. it seems the rule takes care of the planar C2v molecules, but for non-planar ones the B1 and B2 are still arbitrary
¸üÍ´¿àµÄÊÇÃÎûÐÑ·ÒѾ­²»ÄÜ×ßÁË
38Â¥2010-12-10 00:40:12
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû

ykwang

½ð³æ (ÕýʽдÊÖ)

¡ï
Сľ³æ(½ð±Ò+0.5):¸ø¸öºì°ü£¬Ð»Ð»»ØÌû½»Á÷
ÒýÓûØÌû:
Originally posted by mchen10 at 2010-12-10 00:40:12:
thanks
it surely clears the air a lot. it seems the rule takes care of the planar C2v molecules, but for non-planar ones the B1 and B2 are still arbitrary

¶ÔÓÚ·ÇÆ½ÃæµÄC2v¶Ô³ÆÐԵķÖ×Ó£¬¹ßÀýÊǽ«°üº¬Ô­×ÓÊý×î¶àµÄ¶Ô³ÆÃæÑ¡ÎªYZÃæ(H2OÖ»ÊÇÕâÒ»ÒªÇóµÄÌØÀý)¡£Èç¹ûXZÃæÓëYZÃæ°üº¬ÏàͬÊýÄ¿µÄÔ­×Ó£¬Ôò½«°üº¬ÖØÔ­×Ó(·ÇÇâÔ­×Ó)Êý¶àµÄÃæÑ¡ÎªYZÃæ¡£¾ÍÎÒËùÖª£¬Gaussian03/09ÊÇ×ñÑ­ÕâÒ»¹æÔòµÄ¡£
Nothing_Is_Impossible!
39Â¥2010-12-10 06:04:51
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû

fineren

ľ³æ (ÕýʽдÊÖ)

ѧϰÁË
40Â¥2010-12-10 12:18:39
ÒÑÔÄ   »Ø¸´´ËÂ¥   ¹Ø×¢TA ¸øTA·¢ÏûÏ¢ ËÍTAºì»¨ TAµÄ»ØÌû
Ïà¹Ø°æ¿éÌø×ª ÎÒÒª¶©ÔÄÂ¥Ö÷ superfan µÄÖ÷Ìâ¸üÐÂ
×î¾ßÈËÆøÈÈÌûÍÆ¼ö [²é¿´È«²¿] ×÷Õß »Ø/¿´ ×îºó·¢±í
[»ù½ðÉêÇë] 2026¹ú×ÔÈ»º¯ÆÀ·Ñµ½ÕË +19 ÑòÑü°å 2026-08-21 22/1100 2026-08-25 10:38 by popular289
[½Ìʦ֮¼Ò] µ¼Ê¦Í²ۣºÎÒÔõô̯ÉÏÁËÕâô¸ö¼«Æ·Ñо¿Éú£¡ +3 ËÕ¶«ÆÂ¶þÊÀ 2026-08-23 3/150 2026-08-25 10:35 by shisan1313
[»ù½ðÉêÇë] 2026ÄêµÄ¹ú¼ÒÉç¿Æ»ù½ðÏîĿͨѶÆÀÉóµÄйæÔòÓëж¯Ïò¡¢ÐÂÌôÕ½ +5 process2012 2026-08-23 7/350 2026-08-25 09:42 by huixian257
[»ù½ðÉêÇë] ÎÒÃæÉÏÍêµ°ÁË +13 ÇÒÌý»¢Ð¥ 2026-08-20 14/700 2026-08-25 09:10 by mrkang
[»ù½ðÉêÇë] ·¶½øÖоÙÒ»ÎĵÄÖÐÐÄ˼Ïë +7 Ñ׻ƹóëÐ 2026-08-22 8/400 2026-08-25 08:48 by ZJTJZ
[»ù½ðÉêÇë] Ã÷ÌìÓ¦¸Ã¿É²éÁË£¡£¿ +5 chengyan1220 2026-08-23 5/250 2026-08-24 23:28 by ÎÒ4´ó°×²Ë
[»ù½ðÉêÇë] ûÓÐÈκÎÏûÏ¢-ÊDz»ÊǾÍÁ¹ÁË +7 ͼÀ²Í¼À² 2026-08-24 8/400 2026-08-24 22:00 by maomao_da
[»ù½ðÉêÇë] ÈËÆø²»ÐÐÁË +10 fansofjerry 2026-08-21 10/500 2026-08-24 21:03 by zhanghaozhu
[»ù½ðÉêÇë] filecode£¬4¸öjtjcÁË +14 ziyangfang 2026-08-19 17/850 2026-08-24 18:37 by ¹þ¹þ¸ò£¿
[»ù½ðÉêÇë] ½¨Òé»ù½ð·¢²¼Ìáǰ¸ø³öÃ÷È·µÄʱ¼äµã +13 kulium 2026-08-21 16/800 2026-08-24 16:27 by superceng
[»ù½ðÉêÇë] ½ñÈÕ²»·Å°ñ£¿Íø´«¹ú×ÔȻԤ¼Æ 8 Ô 27 Èտɲé½á¹û +17 ҽѧÀÏÄк¢ 2026-08-20 21/1050 2026-08-24 14:21 by refreshing11
[»ù½ðÉêÇë] ·Å°ñǰµÄ²»µ­¶¨ 20+4 snowwithsea 2026-08-19 17/850 2026-08-24 10:20 by echo8914667
[»ù½ðÉêÇë] ¿ÆÑй¶ùÌ«ÄÑÁË +18 ÎÒ4´ó°×²Ë 2026-08-20 19/950 2026-08-24 09:47 by ¿­¶÷¹ãÊ¢´ß»¯·ÖÎ
[»ù½ðÉêÇë] ʲôʱºò¿ª½±£¿ +10 CrisMessi 2026-08-18 11/550 2026-08-24 06:50 by ¿ªÐĵÄСʨ×Ó
[»ù½ðÉêÇë] ʱ¼ä´Á½ñÌ죬20ºÅ±äÁË +5 archvillain 2026-08-20 5/250 2026-08-22 06:12 by hui_daxiao
[»ù½ðÉêÇë] ¿´À´½ñÌì²»»á·Å°ñÁË£¿ +8 chengyan1220 2026-08-21 11/550 2026-08-21 17:52 by dcqxinyang
[»ù½ðÉêÇë] ʱ¼ä´ÁÓÖ±äÁË +13 wuchongjun 2026-08-20 19/950 2026-08-21 17:21 by ×Ïɼ´¼
[»ù½ðÉêÇë] ½ñÌì·Å°ñûϷÁ衃 +9 yuleib84 2026-08-19 11/550 2026-08-21 10:06 by gltch
[»ù½ðÉêÇë] »ù½ð°¡»ù½ð +4 longfie172 2026-08-20 4/200 2026-08-21 08:58 by mark mao
[»ù½ðÉêÇë] Ã÷Ìì·Å°ñ£¿ +5 Shxjjxjkx 2026-08-18 5/250 2026-08-18 18:14 by -´ó´ó´ó´ó´ó-
ÐÅÏ¢Ìáʾ
ÇëÌî´¦ÀíÒâ¼û