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All results from a given calculation for CH3CClCHCH3 (2-Butene, 2-chloro-, (E)-)

using model chemistry: MP2/CEP-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 MP2/CEP-31G*
 hartrees
Energy at 0K-41.307024
Energy at 298.15K-41.313764
HF Energy-40.685974
Nuclear repulsion energy90.107413
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 MP2/CEP-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' 3222 3059 31.22      
2 A' 3213 3051 5.30      
3 A' 3201 3039 14.10      
4 A' 3098 2941 17.13      
5 A' 3088 2932 33.39      
6 A' 1735 1648 12.75      
7 A' 1522 1445 10.59      
8 A' 1509 1433 5.73      
9 A' 1453 1379 5.56      
10 A' 1444 1371 2.59      
11 A' 1358 1289 2.33      
12 A' 1176 1117 34.67      
13 A' 1110 1054 36.19      
14 A' 1031 978 7.29      
15 A' 940 893 14.67      
16 A' 687 652 19.87      
17 A' 435 413 5.38      
18 A' 346 329 0.26      
19 A' 270 257 0.40      
20 A" 3185 3024 16.31      
21 A" 3165 3005 23.74      
22 A" 1508 1431 14.62      
23 A" 1495 1419 2.99      
24 A" 1081 1026 1.01      
25 A" 1065 1011 0.09      
26 A" 838 795 32.84      
27 A" 408 387 5.02      
28 A" 226 215 0.67      
29 A" 153 145 0.57      
30 A" 106 101 0.47      

Unscaled Zero Point Vibrational Energy (zpe) 22032.8 cm-1
Scaled (by 0.9494) Zero Point Vibrational Energy (zpe) 20917.9 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 MP2/CEP-31G*
ABC
0.23674 0.07832 0.06020

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/CEP-31G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -2.152 -1.229 0.000
H2 -2.705 -0.277 0.000
H3 -2.460 -1.807 0.891
H4 -2.460 -1.807 -0.891
C5 0.000 0.178 0.000
H6 -0.025 -1.936 0.000
C7 -0.644 -1.032 0.000
H8 -0.244 2.131 0.893
H9 -0.244 2.131 -0.893
C10 -0.588 1.580 0.000
Cl11 1.772 0.178 0.000
H12 -1.688 1.547 0.000

Atom - Atom Distances (Å)
  C1 H2 H3 H4 C5 H6 C7 H8 H9 C10 Cl11 H12
C11.10071.10581.10582.57162.24221.52133.96613.96613.21494.16952.8142
H21.10071.78761.78762.74333.15242.19533.55763.55762.81634.50082.0883
H31.10581.78761.78123.28482.59642.16644.51974.85873.97154.75943.5554
H41.10581.78761.78123.28482.59642.16644.85874.51973.97154.75943.5554
C52.57162.74333.28483.28482.11471.37112.16112.16111.51961.77242.1732
H62.24223.15242.59642.59642.11471.09584.17014.17013.56072.77513.8599
C71.52132.19532.16642.16641.37111.09583.31123.31122.61242.70262.7824
H83.96613.55764.51974.85872.16114.17013.31121.78511.10422.94551.7958
H93.96613.55764.85874.51972.16114.17013.31121.78511.10422.94551.7958
C103.21492.81633.97153.97151.51963.56072.61241.10421.10422.74491.1009
Cl114.16954.50084.75944.75941.77242.77512.70262.94552.94552.74493.7215
H122.81422.08833.55543.55542.17323.85992.78241.79581.79581.10093.7215

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 125.441 C1 C7 H6 116.975
H2 C1 H3 108.222 H2 C1 H4 108.222
H2 C1 C7 112.723 H3 C1 H4 107.291
H3 C1 C7 110.104 H4 C1 C7 110.104
C5 C7 H6 117.584 C5 C10 H8 109.887
C5 C10 H9 109.887 C5 C10 H12 111.045
C7 C5 C10 129.233 C7 C5 Cl11 118.010
H8 C10 H9 107.863 H8 C10 H12 109.047
H9 C10 H12 109.047 C10 C5 Cl11 112.757
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability