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

using model chemistry: mPW1PW91/6-31G(2df,p)

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes D2D 1A1
Energy calculated at mPW1PW91/6-31G(2df,p)
 hartrees
Energy at 0K-1811.608470
Energy at 298.15K-1811.613492
HF Energy-1811.608470
Nuclear repulsion energy806.999867
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 mPW1PW91/6-31G(2df,p)
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
(Å4/u)
Dep P Dep U
1 A1 764 730 0.00      
2 A1 588 561 0.00      
3 A1 224 214 0.00      
4 A2 796 759 0.00      
5 A2 280 268 0.00      
6 B1 783 747 0.00      
7 B1 359 343 0.00      
8 B2 1004 959 77.37      
9 B2 573 547 63.28      
10 B2 189 181 0.77      
11 E 821 783 7.72      
11 E 821 783 7.72      
12 E 753 719 91.88      
12 E 753 719 91.88      
13 E 542 517 5.93      
13 E 542 517 5.93      
14 E 348 332 18.47      
14 E 348 332 18.47      

Unscaled Zero Point Vibrational Energy (zpe) 5242.7 cm-1
Scaled (by 0.9547) Zero Point Vibrational Energy (zpe) 5005.2 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 mPW1PW91/6-31G(2df,p)
ABC
0.05186 0.05186 0.04157

See section I.F.4 to change rotational constant units
Geometric Data calculated at mPW1PW91/6-31G(2df,p)

Point Group is D2d

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 1.289 1.289 0.000
N2 -1.289 1.289 0.000
N3 -1.289 -1.289 0.000
N4 1.289 -1.289 0.000
S5 0.000 1.310 0.978
S6 0.000 -1.310 0.978
S7 1.310 0.000 -0.978
S8 -1.310 0.000 -0.978

Atom - Atom Distances (Å)
  N1 N2 N3 N4 S5 S6 S7 S8
N12.57753.64522.57751.61793.06111.61793.0611
N22.57752.57753.64521.61793.06113.06111.6179
N33.64522.57752.57753.06111.61793.06111.6179
N42.57753.64522.57753.06111.61791.61793.0611
S51.61791.61793.06113.06112.62002.69382.6938
S63.06113.06111.61791.61792.62002.69382.6938
S71.61793.06113.06111.61792.69382.69382.6200
S83.06111.61791.61793.06112.69382.69382.6200

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 105.612 N1 S7 N4 105.612
N2 S8 N3 105.612 N3 S6 N4 105.612
S5 N1 S7 112.715 S5 N2 S8 112.715
S6 N3 S8 112.715 S6 N4 S7 112.715
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at mPW1PW91/6-31G(2df,p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 N -0.278      
2 N -0.278      
3 N -0.278      
4 N -0.278      
5 S 0.278      
6 S 0.278      
7 S 0.278      
8 S 0.278      


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 -75.425 0.000 0.000
y 0.000 -75.425 0.000
z 0.000 0.000 -66.076
Traceless
 xyz
x -4.675 0.000 0.000
y 0.000 -4.675 0.000
z 0.000 0.000 9.349
Polar
3z2-r218.699
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 14.463 0.000 0.000
y 0.000 14.463 0.000
z 0.000 0.000 11.386


<r2> (average value of r2) Å2
<r2> 309.190
(<r2>)1/2 17.584