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: CCSD/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 CCSD/6-31G*
 hartrees
Energy at 0K-614.503111
Energy at 298.15K 
HF Energy-613.817535
Nuclear repulsion energy196.710188
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 CCSD/6-31G*
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' 3293 3109 3.42      
2 A' 3287 3104 6.45      
3 A' 3204 3026 4.75      
4 A' 3200 3021 1.87      
5 A' 3184 3007 4.79      
6 A' 1750 1653 4.75      
7 A' 1685 1591 22.33      
8 A' 1494 1411 0.44      
9 A' 1444 1364 5.04      
10 A' 1352 1276 0.36      
11 A' 1285 1213 41.58      
12 A' 1065 1006 6.34      
13 A' 929 877 7.20      
14 A' 655 619 18.63      
15 A' 537 507 0.94      
16 A' 397 375 1.29      
17 A' 253 238 0.11      
18 A" 1004 948 26.10      
19 A" 939 887 34.95      
20 A" 902 851 45.66      
21 A" 755 713 0.83      
22 A" 671 634 0.40      
23 A" 412 389 5.31      
24 A" 131 124 0.21      

Unscaled Zero Point Vibrational Energy (zpe) 16912.9 cm-1
Scaled (by 0.9443) Zero Point Vibrational Energy (zpe) 15970.9 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 CCSD/6-31G*
ABC
0.18027 0.12270 0.07301

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.296 1.888 0.000
C2 0.000 0.581 0.000
C3 1.377 0.067 0.000
C4 1.747 -1.222 0.000
Cl5 -1.301 -0.593 0.000
H6 0.503 2.625 0.000
H7 -1.319 2.251 0.000
H8 2.139 0.848 0.000
H9 2.798 -1.495 0.000
H10 1.025 -2.033 0.000

Atom - Atom Distances (Å)
  C1 C2 C3 C4 Cl5 H6 H7 H8 H9 H10
C11.34032.47343.72102.67731.08721.08522.64804.58544.1382
C21.34031.46992.51021.75252.10502.12772.15513.48472.8082
C32.47341.46991.34052.75772.70363.46961.09082.11202.1294
C43.72102.51021.34053.11134.04304.63212.10611.08681.0860
Cl52.67731.75252.75773.11133.68962.84413.72894.19702.7351
H61.08722.10502.70364.04303.68961.86042.41554.71674.6876
H71.08522.12773.46964.63212.84411.86043.73165.56664.8833
H82.64802.15511.09082.10613.72892.41553.73162.43413.0887
H94.58543.48472.11201.08684.19704.71675.56662.43411.8533
H104.13822.80822.12941.08602.73514.68764.88333.08871.8533

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 123.260 C1 C2 Cl5 119.314
C2 C1 H6 119.897 C2 C1 H7 122.276
C2 C3 C4 126.493 C2 C3 H8 113.801
C3 C2 Cl5 117.427 C3 C4 H9 120.588
C3 C4 H10 122.345 C4 C3 H8 119.706
H6 C1 H7 117.828 H9 C4 H10 117.068
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability