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Çë½Ì¹ØÓÚ¹ý¶É̬OPTÊäÈëµÄÎÊÌ⣬ÆäÖÐQST2·½·¨ÊÇÒªÊäÈë·´Ó¦ÎïºÍ²úÎïÁ½¸ö×ø±êµÄ£¬¸ñʽÈçÏ£º
·´Ó¦ SiH4-->TS-->SiH2+H2

# RHF/6-31G(d) OPT=QST2 Freq Test

Untitled

0,1
reactance(SiH4)

Untitled

0,1
product(SiH2+H2)

ÄÇô¶ÔÓÚ·´Ó¦A+B--->C+DÕâÑùµÄ·´Ó¦ÄØ£¬¸ÃÈçºÎÊäÈëÄØ£¿£¨¼ÙÉèAºÍCÊÇÖ÷ÒªµÄ·´Ó¦ÎïºÍ²úÎ

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¶ÔÓÚ·´Ó¦ SiH4-->TS-->SiH2+H2
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%chk=qst2
#hf/3-21g* opt=(QST2,noeigen,redundant) freq Test

SiH4 -->SiH2+H2   Reactants

0  1
Si
X 1 1.0
H 1 1.48 2 55.0
H 1 1.48 2 55.0 3 180.0
H 1 R 2 A1 3 90.0
H 1 R 5 A2 2 180.0

R=1.48
A1=125.2
A2=109.5

SiH4-->SiH2+H2  products

2  3
Si
X 1 1.0
H 1 1.48 2 55.0
H 1 1.48 2 55.0 3 180.0
H 1 R 2 A1 3 90.0
H 1 R 5 A2 2 180.0

R=1.69
A1=82.0
A2=28.0

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Originally posted by gaochao85 at 2008-10-6 17:19:
Æäʵ ¾ÍÊǰÑSiH2ÓëH2·ÅÔÚÒ»¸öÊʵ±µÄ¾àÀ룬 ¾ÍÊÇmolecule-molecule complex
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5Â¥2008-10-06 20:26:59
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2Â¥2008-10-06 16:40:04
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sunny_sky681

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ÒýÓûØÌû:
Originally posted by gaochao85 at 2008-10-6 16:40:
£Ñ£Ó£Ô2ÒªÇó¹ý¶É̬Á½±ßµÄÁ½¸öÖмäÌ壬ÕâÁ½¸öÖмäÌåÒ»°ãÊǽÏÎȶ¨µÄ¸´ºÏÎÄãºóÃæÓ¦¸ÃÊÇÒ»¸ö²úÎ︴ºÏÎï

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3Â¥2008-10-06 16:42:23
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Æäʵ ¾ÍÊǰÑSiH2ÓëH2·ÅÔÚÒ»¸öÊʵ±µÄ¾àÀ룬 ¾ÍÊÇmolecule-molecule complex
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4Â¥2008-10-06 17:19:03
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