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

using model chemistry: LSDA/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 LSDA/3-21G*
 hartrees
Energy at 0K-1797.736415
Energy at 298.15K-1797.740697
HF Energy-1797.736415
Nuclear repulsion energy777.228520
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 LSDA/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 659 647 0.00      
2 A1 570 559 0.00      
3 A1 176 173 0.00      
4 A2 730 717 0.00      
5 A2 215 211 0.00      
6 B1 661 649 0.00      
7 B1 322 316 0.00      
8 B2 967 950 48.58      
9 B2 542 532 84.68      
10 B2 159 156 0.14      
11 E 769 755 2.59      
11 E 769 755 2.59      
12 E 649 637 63.49      
12 E 649 637 63.49      
13 E 484 475 25.05      
13 E 484 475 25.05      
14 E 305 300 21.75      
14 E 305 300 21.75      

Unscaled Zero Point Vibrational Energy (zpe) 4705.6 cm-1
Scaled (by 0.982) Zero Point Vibrational Energy (zpe) 4620.9 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 LSDA/3-21G*
ABC
0.04826 0.04826 0.03639

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

Point Group is D2d

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 1.319 1.319 0.000
N2 -1.319 1.319 0.000
N3 -1.319 -1.319 0.000
N4 1.319 -1.319 0.000
S5 0.000 1.449 0.959
S6 0.000 -1.449 0.959
S7 1.449 0.000 -0.959
S8 -1.449 0.000 -0.959

Atom - Atom Distances (Å)
  N1 N2 N3 N4 S5 S6 S7 S8
N12.63753.73002.63751.63593.21221.63593.2122
N22.63752.63753.73001.63593.21223.21221.6359
N33.73002.63752.63753.21221.63593.21221.6359
N42.63753.73002.63753.21221.63591.63593.2122
S51.63591.63593.21223.21222.89742.80692.8069
S63.21223.21221.63591.63592.89742.80692.8069
S71.63593.21223.21221.63592.80692.80692.8974
S83.21221.63591.63593.21222.80692.80692.8974

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 107.437 N1 S7 N4 107.437
N2 S8 N3 107.437 N3 S6 N4 107.437
S5 N1 S7 118.158 S5 N2 S8 118.158
S6 N3 S8 118.158 S6 N4 S7 118.158
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at LSDA/3-21G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 N -0.552      
2 N -0.552      
3 N -0.552      
4 N -0.552      
5 S 0.552      
6 S 0.552      
7 S 0.552      
8 S 0.552      


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 -76.953 0.000 0.000
y 0.000 -76.953 0.000
z 0.000 0.000 -67.757
Traceless
 xyz
x -4.598 0.000 0.000
y 0.000 -4.598 0.000
z 0.000 0.000 9.196
Polar
3z2-r218.391
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 14.077 0.000 0.000
y 0.000 14.077 0.000
z 0.000 0.000 9.708


<r2> (average value of r2) Å2
<r2> 336.755
(<r2>)1/2 18.351