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

using model chemistry: CCSD=FULL/6-31G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2 1A
Energy calculated at CCSD=FULL/6-31G*
 hartrees
Energy at 0K-1195.649660
Energy at 298.15K-1195.653233
HF Energy-1194.716907
Nuclear repulsion energy377.428537
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 CCSD=FULL/6-31G*
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 3172 3012 0.95      
2 A 1451 1379 7.35      
3 A 1358 1290 27.82      
4 A 1179 1120 112.24      
5 A 1126 1069 120.98      
6 A 877 833 73.61      
7 A 473 449 0.60      
8 A 322 306 1.34      
9 A 169 160 0.70      
10 A 86 82 0.70      
11 B 3182 3022 13.80      
12 B 1391 1321 9.08      
13 B 1288 1223 27.64      
14 B 1140 1083 20.75      
15 B 868 825 106.28      
16 B 442 420 12.04      
17 B 399 379 9.48      
18 B 347 330 13.09      

Unscaled Zero Point Vibrational Energy (zpe) 9634.9 cm-1
Scaled (by 0.9498) Zero Point Vibrational Energy (zpe) 9151.2 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 CCSD=FULL/6-31G*
ABC
0.09852 0.06030 0.03883

See section I.F.4 to change rotational constant units
Geometric Data calculated at CCSD=FULL/6-31G*

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.231 0.725 0.390
C2 0.231 -0.725 0.390
H3 -1.321 0.791 0.366
H4 1.321 -0.791 0.366
F5 0.231 1.279 1.553
F6 -0.231 -1.279 1.553
Cl7 0.433 1.620 -0.981
Cl8 -0.433 -1.620 -0.981

Atom - Atom Distances (Å)
  C1 C2 H3 H4 F5 F6 Cl7 Cl8
C11.52171.09192.16971.36892.31711.76672.7238
C21.52172.16971.09192.31711.36892.72381.7667
H31.09192.16973.07932.01372.62342.36142.9015
H42.16971.09193.07932.62342.01372.90152.3614
F51.36892.31712.01372.62342.59952.56473.9074
F62.31711.36892.62342.01372.59953.90742.5647
Cl71.76672.72382.36142.90152.56473.90743.3541
Cl82.72381.76672.90152.36143.90742.56473.3541

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 111.166 C1 C2 F6 106.445
C1 C2 Cl8 111.638 C2 C1 H3 111.166
C2 C1 F5 106.445 C2 C1 Cl7 111.638
H3 C1 F5 109.319 H3 C1 Cl7 109.104
H4 C2 F6 109.319 H4 C2 Cl8 109.104
F5 C1 Cl7 109.101 F6 C2 Cl8 109.101
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability