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: HF/aug-cc-pVDZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at HF/aug-cc-pVDZ
 hartrees
Energy at 0K-615.052782
Energy at 298.15K-615.059926
Nuclear repulsion energy211.227195
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 HF/aug-cc-pVDZ
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' 3332 3035 8.22      
2 A' 3292 2998 26.90      
3 A' 3270 2978 18.19      
4 A' 3184 2899 16.98      
5 A' 3169 2885 41.39      
6 A' 1886 1718 12.47      
7 A' 1592 1449 7.08      
8 A' 1582 1440 4.89      
9 A' 1532 1395 3.57      
10 A' 1520 1384 1.47      
11 A' 1455 1325 0.85      
12 A' 1239 1128 41.61      
13 A' 1160 1056 26.99      
14 A' 1075 979 7.61      
15 A' 974 887 21.60      
16 A' 714 650 26.56      
17 A' 466 424 9.93      
18 A' 369 336 0.45      
19 A' 285 260 0.44      
20 A" 3244 2954 16.28      
21 A" 3219 2931 25.42      
22 A" 1578 1437 12.60      
23 A" 1569 1428 1.77      
24 A" 1154 1051 3.93      
25 A" 1147 1045 1.00      
26 A" 937 853 14.59      
27 A" 479 436 4.51      
28 A" 252 229 0.43      
29 A" 181 165 0.37      
30 A" 126 114 0.29      

Unscaled Zero Point Vibrational Energy (zpe) 22990.0 cm-1
Scaled (by 0.9106) Zero Point Vibrational Energy (zpe) 20934.7 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 HF/aug-cc-pVDZ
ABC
0.24275 0.08018 0.06165

See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/aug-cc-pVDZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -2.227 -1.026 0.000
H2 -2.718 -0.057 0.000
H3 -2.565 -1.578 0.879
H4 -2.565 -1.578 -0.879
C5 0.000 0.174 0.000
H6 -0.198 -1.875 0.000
C7 -0.725 -0.931 0.000
H8 -0.045 2.119 0.880
H9 -0.045 2.119 -0.880
C10 -0.436 1.609 0.000
Cl11 1.763 0.012 0.000
H12 -1.519 1.692 0.000

Atom - Atom Distances (Å)
  C1 H2 H3 H4 C5 H6 C7 H8 H9 C10 Cl11 H12
C11.08631.09161.09162.52932.19961.50443.92773.92773.18624.12282.8090
H21.08631.76341.76342.72743.10762.17573.55723.55722.82544.48162.1207
H31.09161.76341.75773.22792.54242.13894.47424.80773.93244.69383.5443
H41.09161.76341.75773.22792.54242.13894.80774.47423.93244.69383.5443
C52.52932.72743.22793.22792.05881.32162.13572.13571.50011.77092.1475
H62.19963.10762.54242.54242.05881.08184.09334.09333.49292.72143.8045
C71.50442.17572.13892.13891.32161.08183.24673.24672.55672.66112.7407
H83.92773.55724.47424.80772.13574.09333.24671.76081.08992.91351.7689
H93.92773.55724.80774.47422.13574.09333.24671.76081.08992.91351.7689
C103.18622.82543.93243.93241.50013.49292.55671.08991.08992.71851.0861
Cl114.12284.48164.69384.69381.77092.72142.66112.91352.91352.71853.6875
H122.80902.12073.54433.54432.14753.80452.74071.76891.76891.08613.6875

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 126.900 C1 C7 H6 115.568
H2 C1 H3 108.132 H2 C1 H4 108.132
H2 C1 C7 113.250 H3 C1 H4 107.250
H3 C1 C7 109.939 H4 C1 C7 109.939
C5 C7 H6 117.532 C5 C10 H8 110.091
C5 C10 H9 110.091 C5 C10 H12 111.272
C7 C5 C10 129.832 C7 C5 Cl11 118.015
H8 C10 H9 107.767 H8 C10 H12 108.768
H9 C10 H12 108.768 C10 C5 Cl11 112.153
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/aug-cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.263      
2 H -0.163      
3 H 0.093      
4 H 0.093      
5 C -0.615      
6 H -0.377      
7 C 0.546      
8 H 0.111      
9 H 0.111      
10 C 0.376      
11 Cl -0.362      
12 H -0.075      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -2.390 0.197 0.000 2.398
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -39.479 0.378 0.000
y 0.378 -35.937 0.000
z 0.000 0.000 -40.091
Traceless
 xyz
x -1.465 0.378 0.000
y 0.378 3.848 0.000
z 0.000 0.000 -2.382
Polar
3z2-r2-4.765
x2-y2-3.542
xy0.378
xz0.000
yz0.000


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


<r2> (average value of r2) Å2
<r2> 184.528
(<r2>)1/2 13.584