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All results from a given calculation for CH2CHCH2CH3 (1-Butene)

using model chemistry: QCISD/6-311+G(3df,2p)

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A
Energy calculated at QCISD/6-311+G(3df,2p)
 hartrees
Energy at 0K-156.882300
Energy at 298.15K-156.890294
HF Energy-156.160402
Nuclear repulsion energy117.259552
The energy at 298.15K was derived from the energy at 0K and an integrated heat capacity that used the calculated vibrational frequencies.
Vibrational Frequencies calculated at QCISD/6-311+G(3df,2p)
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 A 3244 3093 14.60      
2 A 3158 3012 3.38      
3 A 3146 3000 23.93      
4 A 3126 2981 32.79      
5 A 3120 2975 33.96      
6 A 3083 2940 6.93      
7 A 3046 2905 25.36      
8 A 3039 2899 25.12      
9 A 1718 1638 10.35      
10 A 1529 1459 5.29      
11 A 1521 1450 5.72      
12 A 1507 1438 3.22      
13 A 1472 1404 2.25      
14 A 1431 1365 1.91      
15 A 1366 1303 2.42      
16 A 1329 1267 0.82      
17 A 1307 1247 0.15      
18 A 1216 1160 0.31      
19 A 1110 1058 4.09      
20 A 1051 1002 2.31      
21 A 1032 984 12.16      
22 A 995 949 1.45      
23 A 950 906 40.79      
24 A 873 832 1.52      
25 A 800 763 2.16      
26 A 658 628 10.09      
27 A 434 414 0.65      
28 A 321 306 0.55      
29 A 236 226 0.04      
30 A 107 102 0.07      

Unscaled Zero Point Vibrational Energy (zpe) 23962.4 cm-1
Scaled (by 0.9537) Zero Point Vibrational Energy (zpe) 22852.9 cm-1
See section III.C.1 List or set vibrational scaling factors to change the scale factors used here.
See section III.C.2 Calculate a vibrational scaling factor for a given set of molecules to determine the least squares best scaling factor.
Rotational Constants (cm-1) from geometry optimized at QCISD/6-311+G(3df,2p)
ABC
0.74719 0.13925 0.13621

See section I.F.4 to change rotational constant units
Geometric Data calculated at QCISD/6-311+G(3df,2p)

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.713 -0.254 -0.297
C2 0.541 0.528 0.306
C3 -0.718 -0.290 0.354
C4 -1.848 0.015 -0.286
H5 -0.675 -1.201 0.946
H6 1.495 -0.542 -1.327
H7 2.626 0.344 -0.295
H8 1.907 -1.166 0.272
H9 0.806 0.841 1.322
H10 0.362 1.439 -0.270
H11 -1.929 0.912 -0.888
H12 -2.722 -0.620 -0.224

Atom - Atom Distances (Å)
  C1 C2 C3 C4 H5 H6 H7 H8 H9 H10 H11 H12
C11.53172.51623.57022.85351.09141.09121.09232.15392.16543.86884.4506
C21.53171.50202.51432.20852.17282.17732.17571.09481.09302.77083.5001
C32.51621.50201.33321.08772.78983.46442.76852.12992.13142.11012.1120
C43.57022.51431.33322.09003.54474.48553.97503.21052.62911.08411.0822
H52.85352.20851.08772.09003.21023.85002.66892.55033.08593.06592.4284
H61.09142.17282.78983.54473.21021.76861.76453.06612.51493.74534.3595
H71.09122.17733.46444.48553.85001.76861.76522.48472.51494.62815.4347
H81.09232.17572.76853.97502.66891.76451.76522.51803.07644.51404.6878
H92.15391.09482.12993.21052.55033.06612.48472.51801.75743.51704.1196
H102.16541.09302.13142.62913.08592.51492.51493.07641.75742.43073.7086
H113.86882.77082.11011.08413.06593.74534.62814.51403.51702.43071.8485
H124.45063.50012.11201.08222.42844.35955.43474.68784.11963.70861.8485

picture of 1-Butene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C3 112.077 C1 C2 H9 109.048
C1 C2 H10 110.058 C2 C1 H6 110.735
C2 C1 H7 111.108 C2 C1 H8 110.916
C2 C3 C4 124.843 C2 C3 H5 116.116
C3 C2 H9 109.206 C3 C2 H10 109.426
C3 C4 H11 121.257 C3 C4 H12 121.604
C4 C3 H5 119.032 H6 C1 H7 108.256
H6 C1 H8 107.811 H7 C1 H8 107.887
H9 C2 H10 106.884 H11 C4 H12 117.139
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability