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 C2H2ClF (1-chloro-1-fluoroethylene)

using model chemistry: B2PLYP=FULL/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 B2PLYP=FULL/aug-cc-pVDZ
 hartrees
Energy at 0K-637.164880
Energy at 298.15K-637.167152
HF Energy-636.953764
Nuclear repulsion energy148.271525
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 B2PLYP=FULL/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' 3328 3201 0.43      
2 A' 3212 3090 4.38      
3 A' 1711 1646 151.39      
4 A' 1398 1345 1.19      
5 A' 1176 1131 177.93      
6 A' 944 908 49.99      
7 A' 695 669 43.51      
8 A' 427 411 1.38      
9 A' 369 355 0.03      
10 A" 867 834 56.84      
11 A" 718 691 0.13      
12 A" 520 500 1.80      

Unscaled Zero Point Vibrational Energy (zpe) 7682.8 cm-1
Scaled (by 0.9618) Zero Point Vibrational Energy (zpe) 7389.3 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 B2PLYP=FULL/aug-cc-pVDZ
ABC
0.35114 0.16694 0.11315

See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP=FULL/aug-cc-pVDZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.455 0.000
C2 -0.995 1.339 0.000
F3 1.295 0.822 0.000
Cl4 -0.170 -1.268 0.000
H5 -0.766 2.402 0.000
H6 -2.024 0.999 0.000

Atom - Atom Distances (Å)
  C1 C2 F3 Cl4 H5 H6
C11.33071.34581.73172.09182.0962
C21.33072.34722.73451.08701.0846
F31.34582.34722.55252.59643.3240
Cl41.73172.73452.55253.71792.9288
H52.09181.08702.59643.71791.8848
H62.09621.08463.32402.92881.8848

picture of 1-chloro-1-fluoroethylene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 H5 119.466 C1 C2 H6 120.087
C2 C1 F3 122.555 C2 C1 Cl4 125.986
F3 C1 Cl4 111.459 H5 C2 H6 120.448
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability