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All results from a given calculation for C2H4S (Thiirane)

using model chemistry: B3PW91/cc-pV(T+d)Z

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at B3PW91/cc-pV(T+d)Z
 hartrees
Energy at 0K-476.773127
Energy at 298.15K-476.777593
HF Energy-476.773127
Nuclear repulsion energy101.569127
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 B3PW91/cc-pV(T+d)Z
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 A1 3128 3015 15.89      
2 A1 1488 1435 3.08      
3 A1 1151 1109 1.21      
4 A1 1041 1004 1.06      
5 A1 653 630 23.30      
6 A2 3207 3091 0.00      
7 A2 1190 1147 0.00      
8 A2 901 868 0.00      
9 B1 3221 3105 4.73      
10 B1 960 925 3.96      
11 B1 834 804 0.51      
12 B2 3127 3014 14.06      
13 B2 1465 1412 0.93      
14 B2 1074 1035 25.26      
15 B2 700 675 0.59      

Unscaled Zero Point Vibrational Energy (zpe) 12069.0 cm-1
Scaled (by 0.964) Zero Point Vibrational Energy (zpe) 11634.5 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 B3PW91/cc-pV(T+d)Z
ABC
0.73984 0.36384 0.27018

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3PW91/cc-pV(T+d)Z

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
S1 0.000 0.000 0.860
C2 0.000 0.739 -0.791
C3 0.000 -0.739 -0.791
H4 -0.913 1.251 -1.069
H5 0.913 1.251 -1.069
H6 0.913 -1.251 -1.069
H7 -0.913 -1.251 -1.069

Atom - Atom Distances (Å)
  S1 C2 C3 H4 H5 H6 H7
S11.80881.80882.47392.47392.47392.4739
C21.80881.47861.08301.08302.20712.2071
C31.80881.47862.20712.20711.08301.0830
H42.47391.08302.20711.82643.09722.5013
H52.47391.08302.20711.82642.50133.0972
H62.47392.20711.08303.09722.50131.8264
H72.47392.20711.08302.50133.09721.8264

picture of Thiirane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
S1 C2 C3 65.875 S1 C2 H4 115.314
S1 C2 H5 115.314 S1 C3 C2 65.875
S1 C3 H6 115.314 S1 C3 H7 115.314
C2 S1 C3 48.249 C2 C3 H6 118.175
C2 C3 H7 118.175 C3 C2 H4 118.175
C3 C2 H5 118.175 H4 C2 H5 114.959
H6 C3 H7 114.959
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3PW91/cc-pV(T+d)Z Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 S -0.152      
2 C -0.164      
3 C -0.164      
4 H 0.120      
5 H 0.120      
6 H 0.120      
7 H 0.120      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.000 0.000 -1.910 1.910
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -25.956 0.000 0.000
y 0.000 -24.319 0.000
z 0.000 0.000 -26.142
Traceless
 xyz
x -0.726 0.000 0.000
y 0.000 1.731 0.000
z 0.000 0.000 -1.005
Polar
3z2-r2-2.010
x2-y2-1.638
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.638 0.000 0.000
y 0.000 5.662 0.000
z 0.000 0.000 7.053


<r2> (average value of r2) Å2
<r2> 55.973
(<r2>)1/2 7.482