return to home page Computational Chemistry Comparison and Benchmark DataBase Release 22 (May 2022) Standard Reference Database 101 National Institute of Standards and Technology
You are here: Calculated > Energy > Optimized > Energy

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

using model chemistry: CCD/6-311G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A
Energy calculated at CCD/6-311G**
 hartrees
Energy at 0K-156.785861
Energy at 298.15K-156.793849
HF Energy-156.146255
Nuclear repulsion energy116.861246
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 CCD/6-311G**
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 3253 3107 19.05      
2 A 3168 3026 4.48      
3 A 3155 3014 30.54      
4 A 3142 3001 36.39      
5 A 3136 2996 34.66      
6 A 3101 2962 7.85      
7 A 3059 2921 24.22      
8 A 3055 2918 31.51      
9 A 1733 1655 4.89      
10 A 1530 1461 4.50      
11 A 1523 1455 5.83      
12 A 1509 1441 2.36      
13 A 1475 1408 2.29      
14 A 1440 1375 2.01      
15 A 1374 1312 2.08      
16 A 1327 1268 1.42      
17 A 1312 1253 0.15      
18 A 1217 1163 0.23      
19 A 1114 1064 3.68      
20 A 1056 1009 1.47      
21 A 1024 978 15.54      
22 A 997 952 1.38      
23 A 930 888 36.84      
24 A 875 836 1.12      
25 A 804 768 1.92      
26 A 652 623 9.38      
27 A 434 415 0.58      
28 A 320 305 0.50      
29 A 237 227 0.04      
30 A 106 101 0.05      

Unscaled Zero Point Vibrational Energy (zpe) 24029.1 cm-1
Scaled (by 0.9551) Zero Point Vibrational Energy (zpe) 22950.2 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 CCD/6-311G**
ABC
0.74409 0.13823 0.13521

See section I.F.4 to change rotational constant units
Geometric Data calculated at CCD/6-311G**

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.720 -0.249 -0.300
C2 0.543 0.524 0.314
C3 -0.721 -0.298 0.349
C4 -1.854 0.020 -0.285
H5 -0.676 -1.222 0.928
H6 1.494 -0.537 -1.332
H7 2.632 0.359 -0.303
H8 1.924 -1.164 0.269
H9 0.805 0.828 1.336
H10 0.361 1.443 -0.257
H11 -1.935 0.931 -0.874
H12 -2.733 -0.616 -0.234

Atom - Atom Distances (Å)
  C1 C2 C3 C4 H5 H6 H7 H8 H9 H10 H11 H12
C11.53662.52673.58452.86361.09541.09551.09632.16262.17063.88434.4693
C21.53661.50802.52112.21662.17722.18472.18161.09881.09692.77793.5115
C32.52671.50801.33691.09162.79123.47842.78422.13802.13792.11732.1191
C43.58452.52111.33692.09843.55204.49873.99773.21722.63301.08801.0863
H52.86362.21661.09162.09843.20783.86782.68332.56213.09613.07772.4396
H61.09542.17722.79123.55203.20781.77661.77223.07602.52183.75874.3684
H71.09552.18473.47844.49873.86781.77661.77382.49952.51664.63835.4535
H81.09632.18162.78423.99772.68331.77221.77382.52223.08454.53774.7164
H92.16261.09882.13803.21722.56213.07602.49952.52221.76473.52194.1314
H102.17061.09692.13792.63303.09612.52182.51663.08451.76472.43253.7169
H113.88432.77792.11731.08803.07773.75874.63834.53773.52192.43251.8545
H124.46933.51152.11911.08632.43964.36845.45354.71644.13143.71691.8545

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 112.171 C1 C2 H9 109.159
C1 C2 H10 109.894 C2 C1 H6 110.503
C2 C1 H7 111.093 C2 C1 H8 110.799
C2 C3 C4 124.688 C2 C3 H5 116.089
C3 C2 H9 109.197 C3 C2 H10 109.304
C3 C4 H11 121.308 C3 C4 H12 121.636
C4 C3 H5 119.216 H6 C1 H7 108.365
H6 C1 H8 107.917 H7 C1 H8 108.053
H9 C2 H10 106.975 H11 C4 H12 117.056
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability