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: B1B95/6-311G*

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 B1B95/6-311G*
 hartrees
Energy at 0K-638.696974
Energy at 298.15K-638.701859
HF Energy-638.696974
Nuclear repulsion energy157.585735
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 B1B95/6-311G*
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' 3128 2998 21.20      
2 A' 3092 2964 22.19      
3 A' 1534 1470 1.86      
4 A' 1507 1445 5.24      
5 A' 1440 1380 4.68      
6 A' 1307 1253 13.65      
7 A' 1097 1052 31.33      
8 A' 1084 1039 98.41      
9 A' 787 754 48.52      
10 A' 385 369 2.62      
11 A' 236 226 12.24      
12 A" 3196 3063 14.42      
13 A" 3147 3017 19.32      
14 A" 1320 1265 0.25      
15 A" 1238 1187 0.80      
16 A" 1083 1038 4.88      
17 A" 801 768 1.08      
18 A" 132 126 10.13      

Unscaled Zero Point Vibrational Energy (zpe) 13256.0 cm-1
Scaled (by 0.9586) Zero Point Vibrational Energy (zpe) 12707.2 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 B1B95/6-311G*
ABC
1.01446 0.08021 0.07648

See section I.F.4 to change rotational constant units
Geometric Data calculated at B1B95/6-311G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.609 0.000
C2 0.989 -0.529 0.000
Cl3 -1.662 -0.044 0.000
F4 2.259 0.013 0.000
H5 0.115 1.226 0.887
H6 0.115 1.226 -0.887
H7 0.876 -1.148 0.890
H8 0.876 -1.148 -0.890

Atom - Atom Distances (Å)
  C1 C2 Cl3 F4 H5 H6 H7 H8
C11.50781.78562.33671.08631.08632.15552.1555
C21.50782.69531.38062.15152.15151.09011.0901
Cl31.78562.69533.92172.35742.35742.90722.9072
F42.33671.38063.92172.61822.61822.01312.0131
H51.08632.15152.35742.61821.77362.49243.0610
H61.08632.15152.35742.61821.77363.06102.4924
H72.15551.09012.90722.01312.49243.06101.7804
H82.15551.09012.90722.01313.06102.49241.7804

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 107.916 C1 C2 H7 111.111
C1 C2 H8 111.111 C2 C1 Cl3 109.560
C2 C1 H5 111.023 C2 C1 H6 111.023
Cl3 C1 H5 107.844 Cl3 C1 H6 107.844
F4 C2 H7 108.563 F4 C2 H8 108.563
H5 C1 H6 109.441 H7 C2 H8 109.494
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B1B95/6-311G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.559      
2 C -0.098      
3 Cl -0.079      
4 F -0.266      
5 H 0.279      
6 H 0.279      
7 H 0.222      
8 H 0.222      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.226 0.041 0.000 0.230
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -37.909 -0.584 0.000
y -0.584 -29.083 0.000
z 0.000 0.000 -29.627
Traceless
 xyz
x -8.554 -0.584 0.000
y -0.584 4.685 0.000
z 0.000 0.000 3.870
Polar
3z2-r27.739
x2-y2-8.826
xy-0.584
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 6.252 0.399 0.000
y 0.399 4.340 0.000
z 0.000 0.000 3.827


<r2> (average value of r2) Å2
<r2> 133.182
(<r2>)1/2 11.540

Conformer 2 (C1)

Jump to S1C1
Energy calculated at B1B95/6-311G*
 hartrees
Energy at 0K-638.696383
Energy at 298.15K-638.701373
HF Energy-638.696383
Nuclear repulsion energy161.567851
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 B1B95/6-311G*
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 3183 3051 9.39      
2 A 3133 3003 33.19      
3 A 3117 2988 11.30      
4 A 3068 2941 31.77      
5 A 1516 1453 3.38      
6 A 1477 1416 11.53      
7 A 1444 1384 13.51      
8 A 1356 1300 33.43      
9 A 1296 1243 0.59      
10 A 1242 1191 2.08      
11 A 1133 1086 70.99      
12 A 1082 1038 29.03      
13 A 987 946 7.25      
14 A 866 831 8.63      
15 A 691 662 33.92      
16 A 465 446 12.90      
17 A 286 274 1.06      
18 A 129 124 2.17      

Unscaled Zero Point Vibrational Energy (zpe) 13235.1 cm-1
Scaled (by 0.9586) Zero Point Vibrational Energy (zpe) 12687.2 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 B1B95/6-311G*
ABC
0.45892 0.10958 0.09599

See section I.F.4 to change rotational constant units
Geometric Data calculated at B1B95/6-311G*

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.083 0.838 -0.293
C2 1.197 0.409 0.360
Cl3 -1.430 -0.282 0.064
F4 1.661 -0.755 -0.202
H5 -0.378 1.822 0.065
H6 0.030 0.866 -1.374
H7 1.952 1.186 0.205
H8 1.062 0.245 1.430

Atom - Atom Distances (Å)
  C1 C2 Cl3 F4 H5 H6 H7 H8
C11.50061.78742.36451.08801.08702.12432.1523
C21.50062.73271.37422.13662.14011.09381.0906
Cl31.78742.73273.13832.35252.34923.68922.8894
F42.36451.37423.13833.29742.58142.00462.0062
H51.08802.13662.35253.29741.77492.41932.5344
H61.08702.14012.34922.58141.77492.50783.0516
H72.12431.09383.68922.00462.41932.50781.7829
H82.15231.09062.88942.00622.53443.05161.7829

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 110.594 C1 C2 H7 108.921
C1 C2 H8 111.344 C2 C1 Cl3 112.134
C2 C1 H5 110.236 C2 C1 H6 110.577
Cl3 C1 H5 107.286 Cl3 C1 H6 107.099
F4 C2 H7 108.092 F4 C2 H8 108.415
H5 C1 H6 109.387 H7 C2 H8 109.412
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B1B95/6-311G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.552      
2 C -0.102      
3 Cl -0.074      
4 F -0.255      
5 H 0.266      
6 H 0.279      
7 H 0.210      
8 H 0.228      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.965 2.725 0.314 2.908
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -33.502 2.369 0.967
y 2.369 -29.577 -0.482
z 0.967 -0.482 -29.558
Traceless
 xyz
x -3.935 2.369 0.967
y 2.369 1.953 -0.482
z 0.967 -0.482 1.982
Polar
3z2-r23.963
x2-y2-3.926
xy2.369
xz0.967
yz-0.482


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.780 0.995 -0.083
y 0.995 4.712 -0.206
z -0.083 -0.206 4.023


<r2> (average value of r2) Å2
<r2> 115.555
(<r2>)1/2 10.750