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luoqiquan
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dongdong3881(½ð±Ò+1):¶àлÌṩ 2010-04-20 18:26
dongdong3881(½ð±Ò+1):¶àлÌṩ 2010-04-20 18:26
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http://cccbdb.nist.gov/default.htm you can find in this website |
2Â¥2010-04-20 16:34:18
luoqiquan
ľ³æ (ÖøÃûдÊÖ)
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dongdong3881(½ð±Ò+2):¶àл 2010-04-20 18:26
lmxgg(½ð±Ò+5):лл´ð¸´ 2010-04-21 08:37
dongdong3881(½ð±Ò+2):¶àл 2010-04-20 18:26
lmxgg(½ð±Ò+5):лл´ð¸´ 2010-04-21 08:37
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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 |
3Â¥2010-04-20 16:35:48














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(angles (a) in degrees) (dihedrals (d) in degrees) Description Value Connectivity Reference Comment