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 CH2ClCHCHCH3 (2-Butene, 1-chloro-)

using model chemistry: PBEPBE/6-31G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 no CS 1A'
1 2 yes C1 1A

Conformer 1 (CS)

Jump to S1C2
Energy calculated at PBEPBE/6-31G*
 hartrees
Energy at 0K-616.390445
Energy at 298.15K-616.397393
HF Energy-616.390445
Nuclear repulsion energy203.961351
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 PBEPBE/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' 3104 3060 10.32      
2 A' 3063 3019 17.59      
3 A' 3059 3016 12.53      
4 A' 2998 2955 22.13      
5 A' 2970 2928 29.12      
6 A' 1720 1696 0.67      
7 A' 1474 1453 11.30      
8 A' 1451 1430 2.24      
9 A' 1393 1373 2.45      
10 A' 1305 1286 8.29      
11 A' 1296 1277 30.95      
12 A' 1270 1251 5.10      
13 A' 1108 1093 0.15      
14 A' 1032 1017 12.40      
15 A' 899 886 12.21      
16 A' 698 688 21.53      
17 A' 572 564 5.42      
18 A' 327 323 1.19      
19 A' 167 164 0.90      
20 A" 3040 2996 7.88      
21 A" 3025 2981 18.77      
22 A" 1461 1440 7.09      
23 A" 1171 1154 1.94      
24 A" 1038 1023 0.05      
25 A" 961 947 31.49      
26 A" 923 910 0.17      
27 A" 700 690 0.43      
28 A" 237 233 3.79      
29 A" 206 203 2.97      
30 A" 115 113 1.37      

Unscaled Zero Point Vibrational Energy (zpe) 21390.3 cm-1
Scaled (by 0.9857) Zero Point Vibrational Energy (zpe) 21084.4 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 PBEPBE/6-31G*
ABC
0.34616 0.05929 0.05160

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -1.318 0.302 0.000
C2 0.000 1.021 0.000
C3 1.231 0.486 0.000
C4 2.506 1.278 0.000
Cl5 -1.204 -1.506 0.000
H6 -1.915 0.570 0.889
H7 -1.915 0.570 -0.889
H8 -0.115 2.116 0.000
H9 1.326 -0.607 0.000
H10 2.317 2.364 0.000
H11 3.124 1.037 0.885
H12 3.124 1.037 -0.885

Atom - Atom Distances (Å)
  C1 C2 C3 C4 Cl5 H6 H7 H8 H9 H10 H11 H12
C11.50112.55523.94641.81201.10411.10412.17672.79604.17904.58884.5888
C21.50111.34202.51932.79932.15872.15871.10102.10012.67823.24743.2474
C32.55521.34201.50103.14593.26983.26982.11341.09772.16962.16182.1618
C43.94642.51931.50104.63824.56454.56452.75162.22391.10301.10611.1061
Cl51.81202.79933.14594.63822.36812.36813.78252.68485.23225.09775.0977
H61.10412.15873.26984.56452.36811.77892.53403.56094.68155.06065.3627
H71.10412.15873.26984.56452.36811.77892.53403.56094.68155.36275.0606
H82.17671.10102.11342.75163.78252.53402.53403.08112.44423.52673.5267
H92.79602.10011.09772.22392.68483.56093.56093.08113.13252.59282.5928
H104.17902.67822.16961.10305.23224.68154.68152.44423.13251.78781.7878
H114.58883.24742.16181.10615.09775.06065.36273.52672.59281.78781.7706
H124.58883.24742.16181.10615.09775.36275.06063.52672.59281.78781.7706

picture of 2-Butene, 1-chloro- state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C3 127.896 C1 C2 H8 112.641
C2 C1 Cl5 115.006 C2 C1 H6 110.996
C2 C1 H7 110.996 C2 C3 C4 124.690
C2 C3 H9 118.472 C3 C2 H8 119.463
C3 C4 H10 111.943 C3 C4 H11 111.125
C3 C4 H12 111.125 C4 C3 H9 116.838
Cl5 C1 H6 106.035 Cl5 C1 H7 106.035
H6 C1 H7 107.328 H10 C4 H11 108.042
H10 C4 H12 108.042 H11 C4 H12 106.328
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBE/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.456      
2 C -0.108      
3 C -0.075      
4 C -0.538      
5 Cl -0.066      
6 H 0.213      
7 H 0.213      
8 H 0.142      
9 H 0.161      
10 H 0.165      
11 H 0.175      
12 H 0.175      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.350 1.982 0.000 2.013
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -35.076 -2.504 0.000
y -2.504 -38.197 0.000
z 0.000 0.000 -39.046
Traceless
 xyz
x 3.546 -2.504 0.000
y -2.504 -1.136 0.000
z 0.000 0.000 -2.409
Polar
3z2-r2-4.819
x2-y23.121
xy-2.504
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 10.199 0.577 0.000
y 0.577 8.595 0.000
z 0.000 0.000 4.949


<r2> (average value of r2) Å2
<r2> 212.178
(<r2>)1/2 14.566

Conformer 2 (C1)

Jump to S1C1
Energy calculated at PBEPBE/6-31G*
 hartrees
Energy at 0K-616.392800
Energy at 298.15K-616.399701
HF Energy-616.392800
Nuclear repulsion energy199.580698
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 PBEPBE/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 3100 3056 22.18      
2 A 3083 3039 1.66      
3 A 3077 3033 29.55      
4 A 3061 3017 1.20      
5 A 3025 2982 15.69      
6 A 3024 2981 17.04      
7 A 2971 2928 23.53      
8 A 1700 1675 16.63      
9 A 1471 1450 14.29      
10 A 1459 1438 5.88      
11 A 1459 1438 5.40      
12 A 1389 1369 2.09      
13 A 1313 1294 3.77      
14 A 1302 1283 1.26      
15 A 1249 1231 44.76      
16 A 1180 1163 4.58      
17 A 1101 1086 0.58      
18 A 1089 1073 3.21      
19 A 1036 1021 0.26      
20 A 973 959 28.15      
21 A 933 919 14.04      
22 A 870 857 4.21      
23 A 773 762 11.13      
24 A 653 643 72.84      
25 A 481 475 1.72      
26 A 341 336 6.49      
27 A 270 266 2.02      
28 A 213 210 1.31      
29 A 155 152 2.85      
30 A 89 88 0.33      

Unscaled Zero Point Vibrational Energy (zpe) 21418.6 cm-1
Scaled (by 0.9857) Zero Point Vibrational Energy (zpe) 21112.3 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 PBEPBE/6-31G*
ABC
0.47968 0.04832 0.04659

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

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.772 0.839 0.090
C2 0.524 0.204 0.457
C3 1.608 0.215 -0.341
C4 2.939 -0.386 0.000
Cl5 -2.114 -0.407 -0.094
H6 -1.138 1.530 0.866
H7 -0.713 1.372 -0.871
H8 0.568 -0.288 1.438
H9 1.530 0.702 -1.324
H10 2.932 -0.858 0.996
H11 3.228 -1.153 -0.742
H12 3.739 0.378 -0.014

Atom - Atom Distances (Å)
  C1 C2 C3 C4 Cl5 H6 H7 H8 H9 H10 H11 H12
C11.48952.49833.90901.84051.10151.10062.21022.70524.17364.54574.5357
C21.48951.34632.52762.76372.16542.15881.09812.10572.68603.25483.2539
C32.49831.34631.49913.78243.27562.64752.12111.10042.16552.15782.1617
C43.90902.52761.49915.05454.58754.14552.77472.21851.10251.10621.1062
Cl51.84052.76373.78245.05452.37102.39423.09154.00335.18235.43365.9064
H61.10152.16543.27564.58752.37101.79532.55833.54994.72075.37145.0882
H71.10062.15882.64754.14552.39421.79533.11942.38434.66304.68244.6413
H82.21021.09812.12112.77473.09152.55833.11943.08812.47123.54693.5505
H92.70522.10571.10042.21854.00333.54992.38433.08813.12762.58122.5885
H104.17362.68602.16551.10255.18234.72074.66302.47123.12761.78851.7888
H114.54573.25482.15781.10625.43365.37144.68243.54692.58121.78851.7708
H124.53573.25392.16171.10625.90645.08824.64133.55052.58851.78881.7708

picture of 2-Butene, 1-chloro- state 1 conformation 2
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C3 123.438 C1 C2 H8 116.512
C2 C1 Cl5 111.755 C2 C1 H6 112.531
C2 C1 H7 112.043 C2 C3 C4 125.232
C2 C3 H9 118.433 C3 C2 H8 120.050
C3 C4 H10 111.781 C3 C4 H11 110.934
C3 C4 H12 111.253 C4 C3 H9 116.334
Cl5 C1 H6 104.587 Cl5 C1 H7 106.248
H6 C1 H7 109.232 H10 C4 H11 108.147
H10 C4 H12 108.171 H11 C4 H12 106.336
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBE/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.460      
2 C -0.069      
3 C -0.083      
4 C -0.536      
5 Cl -0.089      
6 H 0.212      
7 H 0.206      
8 H 0.149      
9 H 0.140      
10 H 0.173      
11 H 0.180      
12 H 0.177      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  2.389 1.233 0.120 2.692
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -39.197 -2.114 -0.951
y -2.114 -37.555 -0.721
z -0.951 -0.721 -36.816
Traceless
 xyz
x -2.011 -2.114 -0.951
y -2.114 0.451 -0.721
z -0.951 -0.721 1.560
Polar
3z2-r23.120
x2-y2-1.642
xy-2.114
xz-0.951
yz-0.721


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 12.188 0.118 -0.800
y 0.118 6.144 -0.342
z -0.800 -0.342 6.527


<r2> (average value of r2) Å2
<r2> 234.174
(<r2>)1/2 15.303