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xiaoyu888

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yongleli

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xiaoyu888(½ð±Ò+1):лл²ÎÓë
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xiaoyu888

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Originally posted by yongleli at 2009-9-1 19:09:
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3Â¥2009-09-01 20:52:52
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yongleli

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fegg7502(½ð±Ò+3,VIP+0):thank you very much! 9-1 23:53
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4Â¥2009-09-01 22:28:28
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blsas

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¡ï ¡ï ¡ï ¡ï ¡ï ¡ï ¡ï ¡ï
xiaoyu888(½ð±Ò+1):лл²ÎÓë
xiaoyu888(½ð±Ò+2,VIP+0):лл 9-2 08:25
mingdong(½ð±Ò+5,VIP+0):¸Ðл½»Á÷£¡ 9-2 08:35
Èç¹û¹ý¶É̬µÄµç×ÓÄÜÁ¿±ÈÖмäÌå²úÎï¶¼ÒªµÍµÄ»°£¬ircÊÇÔõô½øÐеÄÄØ£¿ ircÑØ×Źý¶É̬µÄÐ鯵·½Ïò£¬ÄÜÁ¿±ØÈ»ÊÇÉÏÉýµÄ°¡£¿

Äã˵µÄÊǼª²¼Ë¹×ÔÓÉÄܵͣ¬»á²»»áµç×ÓÄÜÁ¿ÊǼ«´óÖµ£¿ CCLÓʼþ×éÉÏÓÐÕâÑùÒ»¸öÀý×Ó

Sent to CCL by: "Andreas  Uhe" [andiuhe..gmx.de]
Dear CCLers,

I hope you can help me explain the following result:
Using Gaussian03 I calculated a transition state and the respective energetic minima connected by the transition state (I checked with an IRC calculation). As one expects the electronic energy of the TS is higher than the electronic energy of the minimum. The problem is that this is reversed for the Gibbs free energy obtained by frequency calculations:

                       E            Ezpe            H            G
transition state   -1624,071411  -1623,310413  -1623,269941  -1623,378578
following minimum  -1624,075219  -1623,311174  -1623,270443  -1623,378231


Is there a chemical or physical explanation for this? Or is it an artefact of the calculations? How can I interpret this result?

Thanks for your help!
Andi



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5Â¥2009-09-02 01:55:02
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xiaoyu888

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ÒýÓûØÌû:
Originally posted by blsas at 2009-9-2 01:55:
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6Â¥2009-09-02 08:30:04
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xiaoyu888

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ÒýÓûØÌû:
Originally posted by yongleli at 2009-9-1 22:28:
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7Â¥2009-09-02 08:32:48
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2008911

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¡ï ¡ï
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8Â¥2009-09-02 09:33:03
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yongleli

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9Â¥2009-09-02 14:25:46
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xiaoyu888

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