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All results from a given calculation for CH2CCHCH3 (1,2-Butadiene)

using model chemistry: MP2=FULL/cc-pVTZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at MP2=FULL/cc-pVTZ
 hartrees
Energy at 0K-155.669854
Energy at 298.15K-155.674867
HF Energy-154.956820
Nuclear repulsion energy102.914948
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 MP2=FULL/cc-pVTZ
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
(Å4/u)
Dep P Dep U
1 A' 3200 3038 7.08      
2 A' 3192 3030 2.25      
3 A' 3179 3019 4.85      
4 A' 3088 2932 25.95      
5 A' 2061 1957 24.44      
6 A' 1528 1451 3.72      
7 A' 1493 1418 6.29      
8 A' 1418 1346 3.32      
9 A' 1375 1306 6.02      
10 A' 1163 1105 0.03      
11 A' 1101 1045 2.98      
12 A' 896 850 10.54      
13 A' 885 840 44.86      
14 A' 567 538 7.50      
15 A' 204 194 1.27      
16 A" 3264 3098 0.52      
17 A" 3151 2991 12.77      
18 A" 1510 1434 5.95      
19 A" 1073 1019 1.03      
20 A" 1027 975 0.43      
21 A" 916 870 17.93      
22 A" 548 521 4.77      
23 A" 334 317 6.43      
24 A" 176 167 0.84      

Unscaled Zero Point Vibrational Energy (zpe) 18674.0 cm-1
Scaled (by 0.9494) Zero Point Vibrational Energy (zpe) 17729.1 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 MP2=FULL/cc-pVTZ
ABC
1.14956 0.14159 0.13254

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2=FULL/cc-pVTZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.697 1.812 0.000
C2 0.000 0.710 0.000
C3 0.687 -0.398 0.000
C4 0.083 -1.768 0.000
H5 -1.003 2.278 0.923
H6 -1.003 2.278 -0.923
H7 1.764 -0.331 0.000
H8 -0.999 -1.710 0.000
H9 0.401 -2.324 -0.877
H10 0.401 -2.324 0.877

Atom - Atom Distances (Å)
  C1 C2 C3 C4 H5 H6 H7 H8 H9 H10
C11.30432.60793.66381.07771.07773.26383.53564.36894.3689
C21.30431.30362.47872.07742.07742.04852.61833.18373.1837
C32.60791.30361.49663.29653.29651.07952.13642.13552.1355
C43.66382.47871.49664.28904.28902.21121.08361.08641.0864
H51.07772.07743.29654.28901.84523.91344.09355.13714.8118
H61.07772.07743.29654.28901.84523.91344.09354.81185.1371
H73.26382.04851.07952.21123.91343.91343.08842.56882.5688
H83.53562.61832.13641.08364.09354.09353.08841.76281.7628
H94.36893.18372.13551.08645.13714.81182.56881.76281.7538
H104.36893.18372.13551.08644.81185.13712.56881.76281.7538

picture of 1,2-Butadiene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C3 179.496 C2 C1 H5 121.116
C2 C1 H6 121.116 C2 C3 C4 124.409
C2 C3 H7 118.239 C3 C4 H8 110.770
C3 C4 H9 110.530 C3 C4 H10 110.530
C4 C3 H7 117.351 H5 C1 H6 117.757
H8 C4 H9 108.644 H8 C4 H10 108.644
H9 C4 H10 107.635
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability