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

using model chemistry: B3PW91/3-21G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes D2D 1A1
Energy calculated at B3PW91/3-21G
 hartrees
Energy at 0K-1802.118219
Energy at 298.15K-1802.121433
HF Energy-1802.118219
Nuclear repulsion energy732.779171
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 B3PW91/3-21G
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 603 579 0.00      
2 A1 521 501 0.00      
3 A1 178 171 0.00      
4 A2 507 487 0.00      
5 A2 149 143 0.00      
6 B1 563 541 0.00      
7 B1 297 285 0.00      
8 B2 805 773 5.90      
9 B2 467 449 64.87      
10 B2 171 165 0.36      
11 E 636 611 13.75      
11 E 636 611 13.75      
12 E 543 522 21.94      
12 E 543 522 21.94      
13 E 437 420 11.61      
13 E 437 420 11.61      
14 E 191 183 21.60      
14 E 191 183 21.60      

Unscaled Zero Point Vibrational Energy (zpe) 3936.4 cm-1
Scaled (by 0.9612) Zero Point Vibrational Energy (zpe) 3783.7 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 B3PW91/3-21G
ABC
0.04294 0.04294 0.03325

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3PW91/3-21G

Point Group is D2d

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 1.418 1.418 0.000
N2 -1.418 1.418 0.000
N3 -1.418 -1.418 0.000
N4 1.418 -1.418 0.000
S5 0.000 1.484 1.043
S6 0.000 -1.484 1.043
S7 1.484 0.000 -1.043
S8 -1.484 0.000 -1.043

Atom - Atom Distances (Å)
  N1 N2 N3 N4 S5 S6 S7 S8
N12.83564.01022.83561.76133.39421.76133.3942
N22.83562.83564.01021.76133.39423.39421.7613
N34.01022.83562.83563.39421.76133.39421.7613
N42.83564.01022.83563.39421.76131.76133.3942
S51.76131.76133.39423.39422.96892.95922.9592
S63.39423.39421.76131.76132.96892.95922.9592
S71.76133.39423.39421.76132.95922.95922.9689
S83.39421.76131.76133.39422.95922.95922.9689

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 107.219 N1 S7 N4 107.219
N2 S8 N3 107.219 N3 S6 N4 107.219
S5 N1 S7 114.296 S5 N2 S8 114.296
S6 N3 S8 114.296 S6 N4 S7 114.296
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3PW91/3-21G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 N -0.670      
2 N -0.670      
3 N -0.670      
4 N -0.670      
5 S 0.670      
6 S 0.670      
7 S 0.670      
8 S 0.670      


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 -80.829 0.000 0.000
y 0.000 -80.829 0.000
z 0.000 0.000 -69.999
Traceless
 xyz
x -5.415 0.000 0.000
y 0.000 -5.415 0.000
z 0.000 0.000 10.830
Polar
3z2-r221.660
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 15.301 0.000 0.000
y 0.000 15.301 0.000
z 0.000 0.000 10.430


<r2> (average value of r2) Å2
<r2> 371.425
(<r2>)1/2 19.272