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All results from a given calculation for C2H4N4 (1H-Tetrazole, 5-methyl-)

using model chemistry: HF/CEP-31G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A'
Energy calculated at HF/CEP-31G*
 hartrees
Energy at 0K-51.965953
Energy at 298.15K-51.973593
Nuclear repulsion energy121.146448
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-31G*
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 A 3929 3528 125.79      
2 A 3358 3015 11.43      
3 A 3247 2916 27.75      
4 A 1778 1596 54.86      
5 A 1631 1465 3.40      
6 A 1618 1453 20.52      
7 A 1563 1403 31.27      
8 A 1548 1390 13.49      
9 A 1457 1308 16.05      
10 A 1250 1122 26.27      
11 A 1209 1086 10.47      
12 A 1180 1059 13.59      
13 A 1112 998 2.23      
14 A 1083 973 2.82      
15 A 724 650 6.59      
16 A 355 319 4.01      
17 A 3314 2976 29.13      
18 A 1613 1448 10.14      
19 A 1167 1048 0.55      
20 A 795 714 5.27      
21 A 761 684 12.89      
22 A 622 558 107.45      
23 A 297 267 0.00      
24 A 76 68 0.70      

Unscaled Zero Point Vibrational Energy (zpe) 17842.3 cm-1
Scaled (by 0.898) Zero Point Vibrational Energy (zpe) 16022.4 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-31G*
ABC
0.33463 0.12232 0.09111

See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/CEP-31G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 -1.160 -0.049 0.000
C2 0.000 0.547 0.000
C3 0.253 2.035 0.000
H4 0.816 2.327 0.886
H5 0.816 2.327 -0.886
H6 -0.704 2.548 0.000
N7 0.945 -0.408 0.000
N8 0.340 -1.604 0.000
N9 -0.902 -1.376 0.000
H10 1.943 -0.346 0.000

Atom - Atom Distances (Å)
  N1 C2 C3 H4 H5 H6 N7 N8 N9 H10
N11.30412.51793.21513.21512.63642.13542.16091.35163.1170
C21.30411.50932.14952.14952.12081.34352.17822.12412.1385
C32.51791.50931.08981.08981.08582.53893.64043.60122.9201
H43.21512.14951.08981.77221.77332.87784.05834.17743.0337
H53.21512.14951.08981.77221.77332.87784.05834.17743.0337
H62.63642.12081.08581.77331.77333.38444.28143.92853.9220
N72.13541.34352.53892.87782.87783.38441.34092.08570.9996
N82.16092.17823.64044.05834.05834.28141.34091.26332.0374
N91.35162.12413.60124.17744.17743.92852.08571.26333.0256
H103.11702.13852.92013.03373.03373.92200.99962.03743.0256

picture of 1H-Tetrazole, 5-methyl- state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
N1 C2 C3 126.857 N1 C2 N7 107.505
N1 N9 N8 111.412 C2 N1 N9 106.213
C2 C3 H4 110.550 C2 C3 H5 110.550
C2 C3 H6 108.520 C2 N7 N8 108.475
C2 N7 H10 131.194 C3 C2 N7 125.638
H4 C3 H5 108.802 H4 C3 H6 109.197
H5 C3 H6 109.197 N7 N8 N9 106.395
N8 N7 H10 120.331
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/CEP-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 N 0.084      
2 C -0.465      
3 C -0.257      
4 H 0.126      
5 H 0.126      
6 H 0.169      
7 N -0.101      
8 N -0.045      
9 N -0.062      
10 H 0.426      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  4.659 4.015 0.000 6.150
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -34.589 -0.774 0.000
y -0.774 -37.361 0.000
z 0.000 0.000 -34.577
Traceless
 xyz
x 1.379 -0.774 0.000
y -0.774 -2.777 0.000
z 0.000 0.000 1.398
Polar
3z2-r22.796
x2-y22.771
xy-0.774
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 6.655 0.254 0.000
y 0.254 7.502 0.000
z 0.000 0.000 3.885


<r2> (average value of r2) Å2
<r2> 103.833
(<r2>)1/2 10.190