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

using model chemistry: CISD/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 CISD/6-311G*
 hartrees
Energy at 0K-156.641805
Energy at 298.15K-156.649889
HF Energy-156.134586
Nuclear repulsion energy117.405935
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 CISD/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 3314 3066 22.06      
2 A 3231 2990 4.82      
3 A 3218 2977 35.38      
4 A 3202 2962 40.93      
5 A 3195 2956 41.62      
6 A 3161 2925 7.18      
7 A 3122 2889 23.71      
8 A 3118 2885 38.86      
9 A 1790 1657 8.46      
10 A 1579 1461 8.01      
11 A 1571 1454 7.75      
12 A 1560 1444 3.01      
13 A 1519 1405 3.37      
14 A 1487 1376 4.11      
15 A 1414 1309 1.55      
16 A 1374 1271 0.86      
17 A 1352 1251 0.06      
18 A 1255 1161 0.21      
19 A 1148 1062 5.26      
20 A 1082 1001 3.60      
21 A 1063 984 13.63      
22 A 1030 953 2.71      
23 A 975 903 50.11      
24 A 897 830 1.22      
25 A 825 763 2.70      
26 A 677 627 11.60      
27 A 447 414 0.69      
28 A 332 307 0.61      
29 A 242 224 0.04      
30 A 111 103 0.06      

Unscaled Zero Point Vibrational Energy (zpe) 24644.2 cm-1
Scaled (by 0.9253) Zero Point Vibrational Energy (zpe) 22803.3 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 CISD/6-311G*
ABC
0.75452 0.13923 0.13610

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

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.714 -0.252 -0.294
C2 0.541 0.526 0.304
C3 -0.719 -0.290 0.347
C4 -1.848 0.015 -0.282
H5 -0.676 -1.202 0.936
H6 1.500 -0.547 -1.320
H7 2.623 0.348 -0.296
H8 1.917 -1.158 0.277
H9 0.799 0.839 1.319
H10 0.366 1.436 -0.270
H11 -1.939 0.911 -0.882
H12 -2.721 -0.619 -0.220

Atom - Atom Distances (Å)
  C1 C2 C3 C4 H5 H6 H7 H8 H9 H10 H11 H12
C11.52952.51723.57212.85111.08911.08941.09012.15192.16113.87914.4515
C21.52951.50212.51232.20562.16962.17452.17471.09281.09072.77623.4968
C32.51721.50211.32731.08632.78743.46362.77662.12722.13022.10742.1063
C43.57212.51231.32732.08243.54904.48353.98253.20132.63041.08251.0808
H52.85112.20561.08632.08243.20183.84812.67562.54713.08183.06022.4205
H61.08912.16962.78743.54903.20181.76411.76053.06212.51413.76064.3625
H71.08942.17453.46364.48353.84811.76411.76022.48592.50644.63425.4320
H81.09012.17472.77663.98252.67561.76051.76022.51513.07204.52724.6958
H92.15191.09282.12723.20132.54713.06212.48592.51511.75183.51364.1091
H102.16111.09072.13022.63043.08182.51412.50643.07201.75182.44163.7085
H113.87912.77622.10741.08253.06023.76064.63424.52723.51362.44161.8414
H124.45153.49682.10631.08082.42054.36255.43204.69584.10913.70851.8414

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 112.261 C1 C2 H9 109.157
C1 C2 H10 110.004 C2 C1 H6 110.775
C2 C1 H7 111.142 C2 C1 H8 111.120
C2 C3 C4 125.114 C2 C3 H5 115.957
C3 C2 H9 109.102 C3 C2 H10 109.462
C3 C4 H11 121.637 C3 C4 H12 121.678
C4 C3 H5 118.925 H6 C1 H7 108.152
H6 C1 H8 107.776 H7 C1 H8 107.733
H9 C2 H10 106.694 H11 C4 H12 116.685
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability