return to home page Computational Chemistry Comparison and Benchmark DataBase Release 22 (May 2022) Standard Reference Database 101 National Institute of Standards and Technology
You are here: Calculated > Energy > Optimized > Energy

All results from a given calculation for CH2CClCHCH2 (1,3-Butadiene, 2-chloro-)

using model chemistry: QCISD/6-31G*

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/6-31G*
 hartrees
Energy at 0K-614.504645
Energy at 298.15K 
HF Energy-613.817436
Nuclear repulsion energy196.637652
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/6-31G*
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' 3289 3132 3.66      
2 A' 3283 3127 6.75      
3 A' 3201 3048 4.87      
4 A' 3196 3044 1.83      
5 A' 3181 3029 4.79      
6 A' 1746 1663 4.76      
7 A' 1681 1601 22.75      
8 A' 1493 1422 0.41      
9 A' 1443 1374 4.79      
10 A' 1350 1286 0.37      
11 A' 1283 1221 41.80      
12 A' 1064 1013 6.35      
13 A' 928 883 7.35      
14 A' 654 622 18.79      
15 A' 536 510 0.98      
16 A' 396 377 1.30      
17 A' 252 240 0.11      
18 A" 1004 956 25.93      
19 A" 937 893 34.90      
20 A" 900 857 45.63      
21 A" 754 718 0.83      
22 A" 670 638 0.39      
23 A" 412 392 5.29      
24 A" 132 125 0.20      

Unscaled Zero Point Vibrational Energy (zpe) 16891.3 cm-1
Scaled (by 0.9523) Zero Point Vibrational Energy (zpe) 16085.6 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/6-31G*
ABC
0.18011 0.12262 0.07295

See section I.F.4 to change rotational constant units
Geometric Data calculated at QCISD/6-31G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.297 1.889 0.000
C2 0.000 0.582 0.000
C3 1.377 0.067 0.000
C4 1.747 -1.222 0.000
Cl5 -1.301 -0.594 0.000
H6 0.503 2.627 0.000
H7 -1.320 2.251 0.000
H8 2.139 0.848 0.000
H9 2.800 -1.495 0.000
H10 1.026 -2.034 0.000

Atom - Atom Distances (Å)
  C1 C2 C3 C4 Cl5 H6 H7 H8 H9 H10
C11.34102.47443.72282.67851.08751.08542.64904.58734.1400
C21.34101.47022.51121.75332.10582.12862.15553.48582.8093
C32.47441.47021.34122.75842.70473.47081.09102.11282.1301
C43.72282.51121.34123.11234.04474.63402.10681.08701.0863
Cl52.67851.75332.75843.11233.69102.84543.72984.19822.7360
H61.08752.10582.70474.04473.69101.86092.41664.71864.6895
H71.08542.12863.47084.63402.84541.86093.73295.56864.8853
H82.64902.15551.09102.10683.72982.41663.73292.43483.0895
H94.58733.48582.11281.08704.19824.71865.56862.43481.8538
H104.14002.80932.13011.08632.73604.68954.88533.08951.8538

picture of 1,3-Butadiene, 2-chloro- state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C3 123.273 C1 C2 Cl5 119.313
C2 C1 H6 119.887 C2 C1 H7 122.279
C2 C3 C4 126.505 C2 C3 H8 113.801
C3 C2 Cl5 117.414 C3 C4 H9 120.587
C3 C4 H10 122.340 C4 C3 H8 119.694
H6 C1 H7 117.834 H9 C4 H10 117.073
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability