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All results from a given calculation for C2H4S (Thiirane)

using model chemistry: PBEPBE/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 PBEPBE/cc-pV(T+d)Z
 hartrees
Energy at 0K-476.552796
Energy at 298.15K-476.557192
HF Energy-476.552796
Nuclear repulsion energy100.878169
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 PBEPBE/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 3051 3029 17.38      
2 A1 1439 1428 3.50      
3 A1 1118 1110 1.16      
4 A1 1004 996 1.08      
5 A1 634 629 19.79      
6 A2 3128 3105 0.00      
7 A2 1151 1143 0.00      
8 A2 871 865 0.00      
9 B1 3142 3119 6.18      
10 B1 927 920 4.35      
11 B1 809 803 0.41      
12 B2 3052 3029 15.94      
13 B2 1419 1408 0.65      
14 B2 1027 1020 25.17      
15 B2 673 668 0.38      

Unscaled Zero Point Vibrational Energy (zpe) 11722.3 cm-1
Scaled (by 0.9926) Zero Point Vibrational Energy (zpe) 11635.6 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 PBEPBE/cc-pV(T+d)Z
ABC
0.73091 0.35856 0.26650

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

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
S1 0.000 0.000 0.866
C2 0.000 0.743 -0.797
C3 0.000 -0.743 -0.797
H4 -0.920 1.259 -1.076
H5 0.920 1.259 -1.076
H6 0.920 -1.259 -1.076
H7 -0.920 -1.259 -1.076

Atom - Atom Distances (Å)
  S1 C2 C3 H4 H5 H6 H7
S11.82181.82182.49052.49052.49052.4905
C21.82181.48691.09071.09072.22092.2209
C31.82181.48692.22092.22091.09071.0907
H42.49051.09072.22091.84003.11802.5172
H52.49051.09072.22091.84002.51723.1180
H62.49052.22091.09073.11802.51721.8400
H72.49052.22091.09072.51723.11801.8400

picture of Thiirane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
S1 C2 C3 65.915 S1 C2 H4 115.228
S1 C2 H5 115.228 S1 C3 C2 65.915
S1 C3 H6 115.228 S1 C3 H7 115.228
C2 S1 C3 48.170 C2 C3 H6 118.185
C2 C3 H7 118.185 C3 C2 H4 118.185
C3 C2 H5 118.185 H4 C2 H5 115.026
H6 C3 H7 115.026
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBE/cc-pV(T+d)Z Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 S -0.145      
2 C -0.163      
3 C -0.163      
4 H 0.118      
5 H 0.118      
6 H 0.118      
7 H 0.118      


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 -1.852 1.852
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -26.152 0.000 0.000
y 0.000 -24.561 0.000
z 0.000 0.000 -26.307
Traceless
 xyz
x -0.718 0.000 0.000
y 0.000 1.668 0.000
z 0.000 0.000 -0.950
Polar
3z2-r2-1.900
x2-y2-1.591
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.777 0.000 0.000
y 0.000 5.814 0.000
z 0.000 0.000 7.209


<r2> (average value of r2) Å2
<r2> 56.648
(<r2>)1/2 7.527