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All results from a given calculation for C2H3Br (vinyl bromide)

using model chemistry: QCISD/STO-3G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at QCISD/STO-3G
 hartrees
Energy at 0K-2621.339790
Energy at 298.15K-2621.345224
HF Energy-2621.165419
Nuclear repulsion energy142.512771
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 QCISD/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' 3507 3507 0.06      
2 A' 3406 3406 1.58      
3 A' 3362 3362 9.01      
4 A' 1739 1739 7.87      
5 A' 1522 1522 15.14      
6 A' 1384 1384 14.56      
7 A' 1103 1103 2.53      
8 A' 697 697 6.95      
9 A' 356 356 0.44      
10 A" 1039 1039 8.18      
11 A" 940 940 8.30      
12 A" 595 595 0.72      

Unscaled Zero Point Vibrational Energy (zpe) 9824.1 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 9824.1 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 QCISD/STO-3G
ABC
1.79003 0.13392 0.12460

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.463 -1.109 0.000
C2 -0.446 -2.118 0.000
Br3 0.000 0.737 0.000
H4 1.552 -1.319 0.000
H5 -0.116 -3.174 0.000
H6 -1.537 -1.935 0.000

Atom - Atom Distances (Å)
  C1 C2 Br3 H4 H5 H6
C11.35761.90291.10972.14472.1635
C21.35762.88922.15211.10641.1062
Br31.90292.88922.57583.91253.0824
H41.10972.15212.57582.49553.1502
H52.14471.10643.91252.49551.8849
H62.16351.10623.08243.15021.8849

picture of vinyl bromide state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 H5 120.666 C1 C2 H6 122.505
C2 C1 Br3 123.917 C2 C1 H4 121.120
Br3 C1 H4 114.963 H5 C2 H6 116.828
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability