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: CID/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 CID/6-31G*
 hartrees
Energy at 0K-615.593788
Energy at 298.15K-615.600793
HF Energy-615.011159
Nuclear repulsion energy211.900536
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 CID/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' 3299 3047 11.14      
2 A' 3281 3031 15.60      
3 A' 3263 3014 13.75      
4 A' 3172 2930 11.01      
5 A' 3160 2919 26.75      
6 A' 1856 1715 11.66      
7 A' 1593 1471 9.30      
8 A' 1581 1460 4.82      
9 A' 1524 1408 6.41      
10 A' 1514 1398 1.06      
11 A' 1439 1329 1.32      
12 A' 1227 1133 39.72      
13 A' 1155 1067 25.36      
14 A' 1073 991 6.61      
15 A' 977 903 14.19      
16 A' 718 663 20.01      
17 A' 462 427 6.87      
18 A' 368 339 0.32      
19 A' 287 265 0.48      
20 A" 3238 2991 11.64      
21 A" 3218 2973 18.70      
22 A" 1578 1458 10.48      
23 A" 1569 1449 3.44      
24 A" 1134 1048 1.25      
25 A" 1131 1044 0.07      
26 A" 906 837 19.21      
27 A" 467 432 3.50      
28 A" 243 225 0.24      
29 A" 163 150 0.24      
30 A" 113 105 0.31      

Unscaled Zero Point Vibrational Energy (zpe) 22853.7 cm-1
Scaled (by 0.9237) Zero Point Vibrational Energy (zpe) 21110.0 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 CID/6-31G*
ABC
0.24512 0.08065 0.06207

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -2.156 -1.146 0.000
H2 -2.694 -0.203 0.000
H3 -2.470 -1.712 0.877
H4 -2.470 -1.712 -0.877
C5 0.000 0.171 0.000
H6 -0.092 -1.890 0.000
C7 -0.667 -0.974 0.000
H8 -0.178 2.108 0.879
H9 -0.178 2.108 -0.879
C10 -0.531 1.570 0.000
Cl11 1.754 0.117 0.000
H12 -1.616 1.583 0.000

Atom - Atom Distances (Å)
  C1 H2 H3 H4 C5 H6 C7 H8 H9 C10 Cl11 H12
C11.08571.09041.09042.52642.19451.49893.90793.90793.16484.10892.7817
H21.08571.76001.76002.72043.10192.16923.52803.52802.79734.46012.0863
H31.09041.76001.75413.22792.54132.13684.45534.78883.91204.68623.5155
H41.09041.76001.75413.22792.54132.13684.78884.45533.91204.68623.5155
C52.52642.72043.22793.22792.06361.32552.13402.13401.49591.75502.1460
H62.19453.10192.54132.54132.06361.08184.09454.09453.48792.72683.7932
C71.49892.16922.13682.13681.32551.08183.24203.24202.54772.65562.7277
H83.90793.52804.45534.78882.13404.09453.24201.75731.08912.91011.7654
H93.90793.52804.78884.45532.13404.09453.24201.75731.08912.91011.7654
C103.16482.79733.91203.91201.49593.48792.54771.08911.08912.70781.0855
Cl114.10894.46014.68624.68621.75502.72682.65562.91012.91012.70783.6755
H122.78172.08633.51553.51552.14603.79322.72771.76541.76541.08553.6755

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 126.785 C1 C7 H6 115.553
H2 C1 H3 107.955 H2 C1 H4 107.955
H2 C1 C7 113.164 H3 C1 H4 107.090
H3 C1 C7 110.228 H4 C1 C7 110.228
C5 C7 H6 117.661 C5 C10 H8 110.293
C5 C10 H9 110.293 C5 C10 H12 111.480
C7 C5 C10 129.005 C7 C5 Cl11 118.433
H8 C10 H9 107.562 H8 C10 H12 108.552
H9 C10 H12 108.552 C10 C5 Cl11 112.562
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability