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All results from a given calculation for CHFClCHFCl (1,2-dichloro-1,2-difluoroethane RR)

using model chemistry: MP2/STO-3G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2 1A
Energy calculated at MP2/STO-3G
 hartrees
Energy at 0K-1181.360497
Energy at 298.15K-1181.363575
HF Energy-1181.197651
Nuclear repulsion energy363.598676
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 MP2/STO-3G
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 3380 2947 0.22      
2 A 1503 1310 7.89      
3 A 1378 1202 38.24      
4 A 1257 1096 69.07      
5 A 1100 959 5.09      
6 A 886 773 33.88      
7 A 470 410 3.88      
8 A 275 240 0.12      
9 A 145 126 0.77      
10 A 56 49 1.22      
11 B 3385 2951 0.96      
12 B 1445 1260 11.93      
13 B 1301 1135 43.03      
14 B 1263 1101 1.56      
15 B 892 778 62.57      
16 B 437 381 11.66      
17 B 387 338 7.10      
18 B 321 280 11.45      

Unscaled Zero Point Vibrational Energy (zpe) 9940.1 cm-1
Scaled (by 0.8719) Zero Point Vibrational Energy (zpe) 8666.7 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 MP2/STO-3G
ABC
0.09031 0.05610 0.03621

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/STO-3G

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.207 0.776 0.427
C2 0.207 -0.776 0.427
H3 -1.315 0.881 0.289
H4 1.315 -0.881 0.289
F5 0.207 1.367 1.610
F6 -0.207 -1.367 1.610
Cl7 0.588 1.618 -1.020
Cl8 -0.588 -1.618 -1.020

Atom - Atom Distances (Å)
  C1 C2 H3 H4 F5 F6 Cl7 Cl8
C11.60691.12142.25431.38552.44791.85372.8238
C21.60692.25431.12142.44791.38552.82381.8537
H31.12142.25433.16552.07342.83252.42512.9132
H42.25431.12143.16552.83252.07342.91322.4251
F51.38552.44792.07342.83252.76502.66954.0573
F62.44791.38552.83252.07342.76504.05732.6695
Cl71.85372.82382.42512.91322.66954.05733.4436
Cl82.82381.85372.91322.42514.05732.66953.4436

picture of 1,2-dichloro-1,2-difluoroethane RR state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 H4 110.159 C1 C2 F6 109.556
C1 C2 Cl8 109.159 C2 C1 H3 110.159
C2 C1 F5 109.556 C2 C1 Cl7 109.159
H3 C1 F5 111.163 H3 C1 Cl7 106.589
H4 C2 F6 111.163 H4 C2 Cl8 106.589
F5 C1 Cl7 110.159 F6 C2 Cl8 110.159
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability