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 CH3CClCHCH3 (2-Butene, 2-chloro-, (E)-)

using model chemistry: B2PLYP=FULLultrafine/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 B2PLYP=FULLultrafine/6-31G*
 hartrees
Energy at 0K-616.465270
Energy at 298.15K 
HF Energy-616.241623
Nuclear repulsion energy210.828794
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 B2PLYP=FULLultrafine/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' 3214 3049 10.34      
2 A' 3190 3026 17.22      
3 A' 3176 3013 14.32      
4 A' 3088 2930 12.20      
5 A' 3076 2918 27.94      
6 A' 1753 1663 12.21      
7 A' 1546 1467 8.27      
8 A' 1535 1457 3.86      
9 A' 1471 1395 4.70      
10 A' 1457 1382 1.64      
11 A' 1386 1315 1.88      
12 A' 1179 1119 38.67      
13 A' 1112 1055 28.23      
14 A' 1034 981 8.60      
15 A' 936 888 18.07      
16 A' 685 650 21.86      
17 A' 442 420 8.32      
18 A' 354 335 0.36      
19 A' 276 262 0.48      
20 A" 3150 2989 11.42      
21 A" 3129 2968 18.73      
22 A" 1533 1454 8.76      
23 A" 1523 1445 4.15      
24 A" 1096 1040 0.19      
25 A" 1085 1029 0.14      
26 A" 861 816 18.79      
27 A" 442 420 3.00      
28 A" 233 221 0.26      
29 A" 169 160 0.22      
30 A" 128 121 0.48      

Unscaled Zero Point Vibrational Energy (zpe) 22127.9 cm-1
Scaled (by 0.9487) Zero Point Vibrational Energy (zpe) 20992.7 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 B2PLYP=FULLultrafine/6-31G*
ABC
0.24330 0.07977 0.06144

See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP=FULLultrafine/6-31G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -2.182 -1.123 0.000
H2 -2.703 -0.165 0.000
H3 -2.508 -1.686 0.881
H4 -2.508 -1.686 -0.881
C5 0.000 0.171 0.000
H6 -0.125 -1.907 0.000
C7 -0.686 -0.976 0.000
H8 -0.157 2.116 0.882
H9 -0.157 2.116 -0.882
C10 -0.516 1.578 0.000
Cl11 1.769 0.101 0.000
H12 -1.606 1.598 0.000

Atom - Atom Distances (Å)
  C1 H2 H3 H4 C5 H6 C7 H8 H9 C10 Cl11 H12
C11.09091.09521.09522.53622.20081.50253.91993.91993.17334.13532.7809
H21.09091.76871.76872.72413.11162.17423.53043.53042.79714.47982.0762
H31.09521.76871.76133.24242.54982.14434.47014.80523.92434.71773.5177
H41.09521.76871.76133.24242.54982.14434.80524.47013.92434.71773.5177
C52.53622.72413.24243.24242.08151.33662.14162.14161.49891.77002.1489
H62.20083.11162.54982.54982.08151.08674.11854.11853.50692.75993.8051
C71.50252.17422.14432.14431.33661.08673.25873.25872.56002.68072.7338
H83.91993.53044.47014.80522.14164.11853.25871.76471.09382.92351.7742
H93.91993.53044.80524.47012.14164.11853.25871.76471.09382.92351.7742
C103.17332.79713.92433.92431.49893.50692.56001.09381.09382.72041.0910
Cl114.13534.47984.71774.71771.77002.75992.68072.92352.92352.72043.6923
H122.78092.07623.51773.51772.14893.80512.73381.77421.77421.09103.6923

picture of 2-Butene, 2-chloro-, (E)- state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C7 C5 126.488 C1 C7 H6 115.485
H2 C1 H3 108.015 H2 C1 H4 108.015
H2 C1 C7 112.978 H3 C1 H4 107.047
H3 C1 C7 110.286 H4 C1 C7 110.286
C5 C7 H6 118.026 C5 C10 H8 110.410
C5 C10 H9 110.410 C5 C10 H12 111.170
C7 C5 C10 128.985 C7 C5 Cl11 118.623
H8 C10 H9 107.551 H8 C10 H12 108.599
H9 C10 H12 108.599 C10 C5 Cl11 112.393
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability