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北京石油化工学院2026年研究生招生接收调剂公告
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lmxgg

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[交流] 【求助】SiHCl3、SiCl4、BCl3、PCl3、PCl5的分子半径 已有1人参与

RT,求助三氯氢硅、四氯化硅、三氯化硼、三氯化磷、五氯化磷的分子半径大小,谢谢!
如无法给出准确数值,请给出数量级~~
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luoqiquan

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dongdong3881(金币+1):多谢提供 2010-04-20 18:26
http://cccbdb.nist.gov/default.htm
you can find in this website
2楼2010-04-20 16:34:18
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luoqiquan

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★ ★
dongdong3881(金币+2):多谢 2010-04-20 18:26
lmxgg(金币+5):谢谢答复 2010-04-21 08:37
such as  SiHCl3
Listing of experimental geometry data for SiHCl3 (Trichlorosilane)
Rotational Constants (cm-1)
See section I.F.4 to change rotational constant units A B C
0.08247 0.08247 0.05003
Rotational Constants from 1986Smi:110
Calculated rotational constants for SiHCl3 (Trichlorosilane).
Point Group C3v

Internal coordinates (distances (r) in Å (angles (a) in degrees) (dihedrals (d) in degrees) Description Value Connectivity Reference Comment
Atom 1 Atom 2 Atom 3 Atom 4
rSiH 1.464 1 2   1977Tak/Mat:1633 rs value
rSiCl 2.020 1 3   1977Tak/Mat:1633 rs value
aClSiCl 109.4 3 1 4  1977Tak/Mat:1633  
aHSiCl 109.5 2 1 3  1977Tak/Mat:1633  


Bond descriptions
Examples: C-C single bond, C=C, double bond, C#C triple bond, C:C aromatic bond Bond Type Count
H-Si 1
Si-Cl 3


Atom x (Å y (Å z (Å
Si1  0.0000  0.0000  0.4989  
H2  0.0000  0.0000  1.9629  
Cl3  0.0000  1.9041  -0.1754  
Cl4  1.6490  -0.9521  -0.1754  
Cl5  -1.6490  -0.9521  -0.1754  


Atom - Atom Distances (Å   Si1 H2 Cl3 Cl4 Cl5
Si1  1.4640 2.0200 2.0200 2.0200
H2 1.4640  2.8632 2.8632 2.8632
Cl3 2.0200 2.8632  3.2981 3.2981
Cl4 2.0200 2.8632 3.2981  3.2981
Cl5 2.0200 2.8632 3.2981 3.2981  

Calculated geometries for SiHCl3 (Trichlorosilane).


--------------------------------------------------------------------------------
References squib reference
1986Smi:110 JG Smith "The Millimetre Wave Spectrum of Trichlorosilane" J. Mol. Spect. 120, 110-117, 1986

Got a better number? Please email us at cccbdb@nist.gov
3楼2010-04-20 16:35:48
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