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 CH2FCH2Cl (Ethane, 1-chloro-2-fluoro-)

using model chemistry: B3LYP/3-21G

19 10 17 12 22

States and conformations

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

Conformer 1 (CS)

Jump to S1C2
Energy calculated at B3LYP/3-21G
 hartrees
Energy at 0K-635.478087
Energy at 298.15K-635.482866
HF Energy-635.478087
Nuclear repulsion energy153.141418
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 B3LYP/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' 3151 3041 6.16      
2 A' 3079 2971 18.53      
3 A' 1584 1529 1.55      
4 A' 1540 1486 6.31      
5 A' 1446 1396 2.31      
6 A' 1286 1241 13.76      
7 A' 1051 1014 57.17      
8 A' 1047 1011 4.49      
9 A' 690 666 50.34      
10 A' 351 339 1.59      
11 A' 225 217 15.50      
12 A" 3225 3112 3.89      
13 A" 3125 3015 23.71      
14 A" 1340 1293 0.24      
15 A" 1221 1178 0.58      
16 A" 1045 1008 1.33      
17 A" 822 793 2.24      
18 A" 126 121 11.30      

Unscaled Zero Point Vibrational Energy (zpe) 13176.9 cm-1
Scaled (by 0.9649) Zero Point Vibrational Energy (zpe) 12714.4 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 B3LYP/3-21G
ABC
0.96620 0.07556 0.07202

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/3-21G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.644 0.000
C2 1.045 -0.461 0.000
Cl3 -1.711 -0.178 0.000
F4 2.317 0.177 0.000
H5 0.045 1.254 0.898
H6 0.045 1.254 -0.898
H7 0.937 -1.084 0.892
H8 0.937 -1.084 -0.892

Atom - Atom Distances (Å)
  C1 C2 Cl3 F4 H5 H6 H7 H8
C11.52111.89872.36401.08701.08702.15892.1589
C21.52112.77071.42382.17972.17971.09331.0933
Cl31.89872.77074.04442.43802.43802.93792.9379
F42.36401.42384.04442.67072.67072.07162.0716
H51.08702.17972.43802.67071.79672.50303.0775
H61.08702.17972.43802.67071.79673.07752.5030
H72.15891.09332.93792.07162.50303.07751.7844
H82.15891.09332.93792.07163.07752.50301.7844

picture of Ethane, 1-chloro-2-fluoro- state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 F4 106.742 C1 C2 H7 110.262
C1 C2 H8 110.262 C2 C1 Cl3 107.719
C2 C1 H5 112.321 C2 C1 H6 112.321
Cl3 C1 H5 106.279 Cl3 C1 H6 106.279
F4 C2 H7 110.082 F4 C2 H8 110.082
H5 C1 H6 111.471 H7 C2 H8 109.383
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/3-21G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.567      
2 C -0.052      
3 Cl -0.055      
4 F -0.290      
5 H 0.269      
6 H 0.269      
7 H 0.213      
8 H 0.213      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.699 0.231 0.000 0.736
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -38.706 -1.413 0.000
y -1.413 -28.867 0.000
z 0.000 0.000 -29.536
Traceless
 xyz
x -9.505 -1.413 0.000
y -1.413 5.254 0.000
z 0.000 0.000 4.251
Polar
3z2-r28.501
x2-y2-9.839
xy-1.413
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.946 0.798 0.000
y 0.798 3.703 0.000
z 0.000 0.000 3.222


<r2> (average value of r2) Å2
<r2> 139.943
(<r2>)1/2 11.830

Conformer 2 (C1)

Jump to S1C1
Energy calculated at B3LYP/3-21G
 hartrees
Energy at 0K-635.477519
Energy at 298.15K-635.482404
HF Energy-635.477519
Nuclear repulsion energy157.778506
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 B3LYP/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 3218 3105 2.14      
2 A 3145 3035 7.54      
3 A 3099 2990 19.85      
4 A 3030 2924 25.21      
5 A 1564 1509 2.45      
6 A 1515 1462 10.10      
7 A 1459 1407 11.19      
8 A 1350 1303 25.25      
9 A 1271 1226 2.75      
10 A 1230 1187 1.62      
11 A 1100 1061 30.37      
12 A 1055 1018 18.36      
13 A 962 928 7.54      
14 A 856 826 2.83      
15 A 614 593 31.52      
16 A 445 429 15.16      
17 A 277 268 1.31      
18 A 114 110 2.06      

Unscaled Zero Point Vibrational Energy (zpe) 13152.4 cm-1
Scaled (by 0.9649) Zero Point Vibrational Energy (zpe) 12690.8 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 B3LYP/3-21G
ABC
0.41469 0.10780 0.09281

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/3-21G

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.025 0.910 -0.303
C2 1.235 0.413 0.367
Cl3 -1.457 -0.283 0.065
F4 1.633 -0.818 -0.205
H5 -0.340 1.878 0.083
H6 0.067 0.916 -1.387
H7 2.024 1.163 0.215
H8 1.068 0.289 1.442

Atom - Atom Distances (Å)
  C1 C2 Cl3 F4 H5 H6 H7 H8
C11.51201.90052.39741.08791.08742.12832.1504
C21.51202.79741.41452.17022.16671.09921.0940
Cl31.90052.79743.14782.43262.42273.77252.9324
F42.39741.41453.14783.35332.61842.06272.0632
H51.08792.17022.43263.35331.80272.47322.5203
H61.08742.16672.42272.61841.80272.54033.0647
H72.12831.09923.77252.06272.47322.54031.7840
H82.15041.09402.93242.06322.52033.06471.7840

picture of Ethane, 1-chloro-2-fluoro- state 1 conformation 2
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 F4 109.964 C1 C2 H7 108.145
C1 C2 H8 110.180 C2 C1 Cl3 109.594
C2 C1 H5 112.145 C2 C1 H6 111.890
Cl3 C1 H5 105.748 Cl3 C1 H6 105.079
F4 C2 H7 109.644 F4 C2 H8 110.014
H5 C1 H6 111.932 H7 C2 H8 108.859
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/3-21G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.568      
2 C -0.048      
3 Cl -0.044      
4 F -0.286      
5 H 0.253      
6 H 0.272      
7 H 0.203      
8 H 0.216      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  1.450 3.000 0.255 3.342
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -33.587 2.174 1.072
y 2.174 -29.444 -0.421
z 1.072 -0.421 -29.340
Traceless
 xyz
x -4.195 2.174 1.072
y 2.174 2.020 -0.421
z 1.072 -0.421 2.175
Polar
3z2-r24.350
x2-y2-4.143
xy2.174
xz1.072
yz-0.421


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.326 1.169 -0.196
y 1.169 4.248 -0.154
z -0.196 -0.154 3.351


<r2> (average value of r2) Å2
<r2> 118.899
(<r2>)1/2 10.904