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

using model chemistry: QCISD(T)/aug-cc-pVDZ

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(T)/aug-cc-pVDZ
 hartrees
Energy at 0K-156.784820
Energy at 298.15K-156.792711
HF Energy-156.122757
Nuclear repulsion energy115.935064
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(T)/aug-cc-pVDZ
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 3224 3152        
2 A 3132 3063        
3 A 3122 3052        
4 A 3099 3030        
5 A 3092 3023        
6 A 3054 2987        
7 A 3014 2947        
8 A 3007 2940        
9 A 1675 1638        
10 A 1485 1452        
11 A 1477 1445        
12 A 1463 1430        
13 A 1441 1409        
14 A 1388 1357        
15 A 1325 1295        
16 A 1298 1269        
17 A 1273 1245        
18 A 1187 1161        
19 A 1081 1057        
20 A 1034 1011        
21 A 987 965        
22 A 970 949        
23 A 910 890        
24 A 857 838        
25 A 780 762        
26 A 632 618        
27 A 424 415        
28 A 311 304        
29 A 228 223        
30 A 102 100        

Unscaled Zero Point Vibrational Energy (zpe) 23534.1 cm-1
Scaled (by 0.9778) Zero Point Vibrational Energy (zpe) 23011.7 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(T)/aug-cc-pVDZ
ABC
0.73492 0.13625 0.13308

See section I.F.4 to change rotational constant units
Geometric Data calculated at QCISD(T)/aug-cc-pVDZ

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.731 -0.248 -0.302
C2 0.547 0.528 0.315
C3 -0.718 -0.305 0.346
C4 -1.873 0.022 -0.282
H5 -0.669 -1.247 0.916
H6 1.509 -0.530 -1.347
H7 2.653 0.362 -0.295
H8 1.932 -1.176 0.266
H9 0.811 0.830 1.349
H10 0.361 1.456 -0.258
H11 -1.962 0.952 -0.860
H12 -2.756 -0.627 -0.234

Atom - Atom Distances (Å)
  C1 C2 C3 C4 H5 H6 H7 H8 H9 H10 H11 H12
C11.54472.53433.61492.87081.10551.10551.10652.17612.18703.92364.5036
C21.54471.51472.54362.23352.19332.19952.19661.10871.10712.80323.5413
C32.53431.51471.35571.10192.80683.49602.79062.15212.15232.14142.1431
C43.61492.54361.35572.12123.58884.53944.02723.24332.65501.09831.0963
H52.87082.23351.10192.12123.22143.88482.68162.58703.12213.10902.4625
H61.10552.19332.80683.58883.22141.79251.78833.09982.53963.80594.4087
H71.10552.19953.49604.53943.88481.79251.78912.51342.54014.68735.4990
H81.10652.19662.79064.02722.68161.78831.78912.54103.10994.57864.7464
H92.17611.10872.15213.24332.58703.09982.51342.54101.78243.54764.1651
H102.18701.10712.15232.65503.12212.53962.54013.10991.78242.45253.7487
H113.92362.80322.14141.09833.10903.80594.68734.57863.54762.45251.8745
H124.50363.54132.14311.09632.46254.40875.49904.74644.16513.74871.8745

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 111.859 C1 C2 H9 109.089
C1 C2 H10 110.025 C2 C1 H6 110.610
C2 C1 H7 111.101 C2 C1 H8 110.811
C2 C3 C4 124.702 C2 C3 H5 116.316
C3 C2 H9 109.262 C3 C2 H10 109.374
C3 C4 H11 121.171 C3 C4 H12 121.504
C4 C3 H5 118.977 H6 C1 H7 108.339
H6 C1 H8 107.893 H7 C1 H8 107.971
H9 C2 H10 107.110 H11 C4 H12 117.325
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability