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-, (Z)-)

using model chemistry: HSEh1PBE/3-21G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at HSEh1PBE/3-21G
 hartrees
Energy at 0K-613.441370
Energy at 298.15K-613.448307
HF Energy-613.441370
Nuclear repulsion energy211.846276
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 HSEh1PBE/3-21G
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' 3184 3067 7.08      
2 A' 3164 3048 4.05      
3 A' 3154 3039 6.33      
4 A' 3071 2958 10.85      
5 A' 3066 2953 14.36      
6 A' 1787 1721 14.29      
7 A' 1551 1494 15.51      
8 A' 1542 1486 0.45      
9 A' 1465 1411 10.74      
10 A' 1462 1408 10.72      
11 A' 1360 1310 30.90      
12 A' 1188 1145 26.96      
13 A' 1110 1069 5.70      
14 A' 1080 1040 28.95      
15 A' 922 888 32.78      
16 A' 575 554 32.28      
17 A' 525 506 3.56      
18 A' 334 321 0.79      
19 A' 244 235 1.82      
20 A" 3140 3024 5.92      
21 A" 3120 3006 11.85      
22 A" 1553 1496 12.57      
23 A" 1532 1476 14.89      
24 A" 1115 1074 5.54      
25 A" 1105 1064 0.60      
26 A" 854 823 18.74      
27 A" 467 450 2.71      
28 A" 250 241 3.18      
29 A" 195 188 2.51      
30 A" 120 116 0.15      

Unscaled Zero Point Vibrational Energy (zpe) 22115.4 cm-1
Scaled (by 0.9633) Zero Point Vibrational Energy (zpe) 21303.8 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 HSEh1PBE/3-21G
ABC
0.15764 0.11101 0.06677

See section I.F.4 to change rotational constant units
Geometric Data calculated at HSEh1PBE/3-21G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
H1 0.539 2.538 0.000
Cl2 -1.335 -0.598 0.000
C3 1.790 -1.294 0.000
C4 -0.364 1.924 0.000
H5 -0.952 2.180 0.883
H6 -0.952 2.180 -0.883
C7 0.000 0.496 0.000
C8 1.283 0.101 0.000
H9 2.005 0.867 0.000
H10 0.983 -2.015 0.000
H11 2.410 -1.471 -0.881
H12 2.410 -1.471 0.881

Atom - Atom Distances (Å)
  H1 Cl2 C3 C4 H5 H6 C7 C8 H9 H10 H11 H12
H13.65384.03131.09141.76911.76912.11232.54792.22314.57504.51164.5116
Cl23.65383.20222.70342.94032.94031.72642.71033.64732.71703.94593.9459
C34.03133.20223.87254.51264.51262.53141.48472.17131.08271.09211.0921
C41.09142.70343.87251.09141.09141.47422.45652.59364.16334.47234.4723
H51.76912.94034.51261.09141.76682.12633.17683.35294.70315.26744.9630
H61.76912.94034.51261.09141.76682.12633.17683.35294.70314.96305.2674
C72.11231.72642.53141.47422.12632.12631.34222.03862.69653.23353.2335
C82.54792.71031.48472.45653.17683.17681.34221.05202.13782.12632.1263
H92.22313.64732.17132.59363.35293.35292.03861.05203.05782.53142.5314
H104.57502.71701.08274.16334.70314.70312.69652.13783.05781.76361.7636
H114.51163.94591.09214.47235.26744.96303.23352.12632.53141.76361.7628
H124.51163.94591.09214.47234.96305.26743.23352.12632.53141.76361.7628

picture of 2-Butene, 2-chloro-, (Z)- state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
H1 C4 H5 108.284 H1 C4 H6 108.284
H1 C4 C7 109.941 Cl2 C7 C4 115.044
Cl2 C7 C8 123.587 C3 C8 C7 127.069
C3 C8 H9 116.702 C4 C7 C8 121.369
H5 C4 H6 108.083 H5 C4 C7 111.076
H6 C4 C7 111.076 C7 C8 H9 116.228
C8 C3 H10 111.794 C8 C3 H11 110.280
C8 C3 H12 110.280 H10 C3 H11 108.374
H10 C3 H12 108.374 H11 C3 H12 107.614
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HSEh1PBE/3-21G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 H 0.234      
2 Cl 0.036      
3 C -0.682      
4 C -0.643      
5 H 0.251      
6 H 0.251      
7 C -0.236      
8 C -0.168      
9 H 0.232      
10 H 0.255      
11 H 0.235      
12 H 0.235      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  1.700 1.594 0.000 2.331
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -36.696 -1.831 0.000
y -1.831 -35.524 0.000
z 0.000 0.000 -39.883
Traceless
 xyz
x 1.007 -1.831 0.000
y -1.831 2.766 0.000
z 0.000 0.000 -3.773
Polar
3z2-r2-7.546
x2-y2-1.172
xy-1.831
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 9.708 -0.123 0.000
y -0.123 7.799 0.000
z 0.000 0.000 4.198


<r2> (average value of r2) Å2
<r2> 174.214
(<r2>)1/2 13.199