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

using model chemistry: MP2/TZVP

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/TZVP
 hartrees
Energy at 0K-155.514806
Energy at 298.15K-155.519717
HF Energy-154.951592
Nuclear repulsion energy102.474817
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/TZVP
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' 3196 3029 16.07      
2 A' 3185 3019 3.42      
3 A' 3182 3016 1.95      
4 A' 3081 2920 30.25      
5 A' 2051 1944 22.44      
6 A' 1528 1449 3.61      
7 A' 1497 1419 4.80      
8 A' 1433 1358 3.28      
9 A' 1377 1305 6.51      
10 A' 1161 1100 0.07      
11 A' 1103 1045 2.71      
12 A' 891 845 3.73      
13 A' 837 794 56.59      
14 A' 562 533 7.53      
15 A' 200 190 1.55      
16 A" 3273 3102 1.42      
17 A" 3156 2992 16.62      
18 A" 1495 1417 6.33      
19 A" 1072 1016 1.51      
20 A" 1022 968 0.40      
21 A" 899 852 17.87      
22 A" 530 502 6.16      
23 A" 314 297 7.54      
24 A" 156 148 0.60      

Unscaled Zero Point Vibrational Energy (zpe) 18599.0 cm-1
Scaled (by 0.9479) Zero Point Vibrational Energy (zpe) 17630.0 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/TZVP
ABC
1.13896 0.14046 0.13147

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/TZVP

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.692 1.822 0.000
C2 0.000 0.710 0.000
C3 0.690 -0.402 0.000
C4 0.075 -1.775 0.000
H5 -0.986 2.297 0.927
H6 -0.986 2.297 -0.927
H7 1.774 -0.336 0.000
H8 -1.012 -1.712 0.000
H9 0.387 -2.338 -0.881
H10 0.387 -2.338 0.881

Atom - Atom Distances (Å)
  C1 C2 C3 C4 H5 H6 H7 H8 H9 H10
C11.30912.61823.67701.08271.08273.27663.54794.38644.3864
C21.30911.30912.48592.08582.08582.05962.62503.19623.1962
C32.61821.30911.50413.31003.31001.08612.14782.14802.1480
C43.67702.48591.50414.30864.30862.22671.08871.09141.0914
H51.08272.08583.31004.30861.85413.92584.11485.16114.8342
H61.08272.08583.31004.30861.85413.92584.11484.83425.1611
H73.27662.05961.08612.22673.92583.92583.10762.58982.5898
H83.54792.62502.14781.08874.11484.11483.10761.76831.7683
H94.38643.19622.14801.09145.16114.83422.58981.76831.7623
H104.38643.19622.14801.09144.83425.16112.58981.76831.7623

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 179.911 C2 C1 H5 121.104
C2 C1 H6 121.104 C2 C3 C4 124.034
C2 C3 H7 118.312 C3 C4 H8 110.847
C3 C4 H9 110.703 C3 C4 H10 110.703
C4 C3 H7 117.655 H5 C1 H6 117.792
H8 C4 H9 108.405 H8 C4 H10 108.405
H9 C4 H10 107.673
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability