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

using model chemistry: QCISD/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 QCISD/cc-pVTZ
 hartrees
Energy at 0K-155.645090
Energy at 298.15K-155.650090
HF Energy-154.956305
Nuclear repulsion energy102.416749
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/cc-pVTZ
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' 3171 3029 10.50      
2 A' 3158 3017 4.00      
3 A' 3144 3004 9.04      
4 A' 3052 2916 31.14      
5 A' 2063 1971 28.06      
6 A' 1526 1458 2.69      
7 A' 1497 1430 5.96      
8 A' 1429 1366 3.30      
9 A' 1381 1320 7.77      
10 A' 1158 1107 0.02      
11 A' 1106 1057 3.23      
12 A' 892 852 19.11      
13 A' 883 844 33.01      
14 A' 566 541 7.72      
15 A' 208 198 1.24      
16 A" 3238 3094 2.39      
17 A" 3111 2973 19.33      
18 A" 1506 1439 5.19      
19 A" 1076 1028 1.54      
20 A" 1035 989 0.91      
21 A" 902 862 16.55      
22 A" 542 518 4.10      
23 A" 335 320 6.62      
24 A" 169 161 0.57      

Unscaled Zero Point Vibrational Energy (zpe) 18572.4 cm-1
Scaled (by 0.9555) Zero Point Vibrational Energy (zpe) 17745.9 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/cc-pVTZ
ABC
1.14206 0.14005 0.13115

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.691 1.826 0.000
C2 0.000 0.713 0.000
C3 0.686 -0.402 0.000
C4 0.076 -1.780 0.000
H5 -0.988 2.302 0.926
H6 -0.988 2.302 -0.926
H7 1.769 -0.337 0.000
H8 -1.011 -1.725 0.000
H9 0.395 -2.341 -0.880
H10 0.395 -2.341 0.880

Atom - Atom Distances (Å)
  C1 C2 C3 C4 H5 H6 H7 H8 H9 H10
C11.30992.61893.68671.08231.08233.27563.56544.39514.3951
C21.30991.30902.49452.08742.08742.05712.63963.20303.2030
C32.61891.30901.50713.31203.31201.08482.15172.14942.1494
C43.68672.49451.50714.31914.31912.22421.08841.09131.0913
H51.08232.08743.31204.31911.85113.92694.13265.17044.8451
H61.08232.08743.31204.31911.85113.92694.13264.84515.1704
H73.27562.05711.08482.22423.92693.92693.10692.58412.5841
H83.56542.63962.15171.08844.13264.13263.10691.76931.7693
H94.39513.20302.14941.09135.17044.84512.58411.76931.7603
H104.39513.20302.14941.09134.84515.17042.58411.76931.7603

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 179.744 C2 C1 H5 121.227
C2 C1 H6 121.227 C2 C3 C4 124.546
C2 C3 H7 118.175 C3 C4 H8 110.965
C3 C4 H9 110.603 C3 C4 H10 110.603
C4 C3 H7 117.279 H5 C1 H6 117.545
H8 C4 H9 108.525 H8 C4 H10 108.525
H9 C4 H10 107.515
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability