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All results from a given calculation for S4N4 (Tetrasulfur tetranitride)

using model chemistry: HF/CEP-121G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes D2D 1A1
Energy calculated at HF/CEP-121G*
 hartrees
Energy at 0K-78.169103
Energy at 298.15K-78.174658
HF Energy-78.169103
Nuclear repulsion energy192.484221
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 HF/CEP-121G*
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 826 747 0.00      
2 A1 640 578 0.00      
3 A1 261 236 0.00      
4 A2 855 773 0.00      
5 A2 332 300 0.00      
6 B1 834 753 0.00      
7 B1 413 373 0.00      
8 B2 1062 959 132.83      
9 B2 630 569 111.27      
10 B2 209 188 3.14      
11 E 832 752 56.62      
11 E 832 752 56.62      
12 E 800 723 137.39      
12 E 800 723 137.39      
13 E 613 554 0.07      
13 E 613 554 0.07      
14 E 391 354 51.67      
14 E 391 354 51.67      

Unscaled Zero Point Vibrational Energy (zpe) 5667.8 cm-1
Scaled (by 0.9034) Zero Point Vibrational Energy (zpe) 5120.2 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 HF/CEP-121G*
ABC
0.05296 0.05296 0.04406

See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/CEP-121G*

Point Group is D2d

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 1.279 1.279 0.000
N2 -1.279 1.279 0.000
N3 -1.279 -1.279 0.000
N4 1.279 -1.279 0.000
S5 0.000 1.249 0.997
S6 0.000 -1.249 0.997
S7 1.249 0.000 -0.997
S8 -1.249 0.000 -0.997

Atom - Atom Distances (Å)
  N1 N2 N3 N4 S5 S6 S7 S8
N12.55803.61762.55801.62173.00291.62173.0029
N22.55802.55803.61761.62173.00293.00291.6217
N33.61762.55802.55803.00291.62173.00291.6217
N42.55803.61762.55803.00291.62171.62173.0029
S51.62171.62173.00293.00292.49702.66272.6627
S63.00293.00291.62171.62172.49702.66272.6627
S71.62173.00293.00291.62172.66272.66272.4970
S83.00291.62171.62173.00292.66272.66272.4970

picture of Tetrasulfur tetranitride state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
N1 S5 N2 104.124 N1 S7 N4 104.124
N2 S8 N3 104.124 N3 S6 N4 104.124
S5 N1 S7 110.363 S5 N2 S8 110.363
S6 N3 S8 110.363 S6 N4 S7 110.363
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/CEP-121G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 N -0.532      
2 N -0.532      
3 N -0.532      
4 N -0.532      
5 S 0.532      
6 S 0.532      
7 S 0.532      
8 S 0.532      


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 0.000 0.000
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -77.850 0.000 0.000
y 0.000 -77.850 0.000
z 0.000 0.000 -62.485
Traceless
 xyz
x -7.682 0.000 0.000
y 0.000 -7.682 0.000
z 0.000 0.000 15.365
Polar
3z2-r230.729
x2-y20.000
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 14.227 0.000 0.000
y 0.000 14.227 0.000
z 0.000 0.000 10.605


<r2> (average value of r2) Å2
<r2> 172.106
(<r2>)1/2 13.119