return to home page Computational Chemistry Comparison and Benchmark DataBase Release 22 (May 2022) Standard Reference Database 101 National Institute of Standards and Technology
You are here: Calculated > Energy > Optimized > Energy

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

using model chemistry: PBEPBE/cc-pVDZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A'
Energy calculated at PBEPBE/cc-pVDZ
 hartrees
Energy at 0K-297.269030
Energy at 298.15K-297.276345
Nuclear repulsion energy227.092109
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 PBEPBE/cc-pVDZ
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
(Å4/u)
Dep P Dep U
1 A 3529 3509 52.52      
2 A 3100 3082 0.57      
3 A 2983 2966 12.61      
4 A 1541 1532 39.24      
5 A 1432 1424 0.34      
6 A 1358 1350 26.95      
7 A 1348 1340 1.27      
8 A 1301 1293 2.81      
9 A 1213 1206 16.95      
10 A 1081 1075 1.90      
11 A 1043 1037 11.82      
12 A 1013 1007 21.62      
13 A 979 974 0.66      
14 A 946 940 0.23      
15 A 676 672 2.58      
16 A 325 323 3.77      
17 A 3053 3035 5.59      
18 A 1406 1398 9.40      
19 A 1013 1007 2.13      
20 A 717 713 5.76      
21 A 683 679 17.28      
22 A 562 558 53.57      
23 A 260 259 0.01      
24 A 90 89 0.18      

Unscaled Zero Point Vibrational Energy (zpe) 15825.9 cm-1
Scaled (by 0.9942) Zero Point Vibrational Energy (zpe) 15734.1 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 PBEPBE/cc-pVDZ
ABC
0.32185 0.12074 0.08931

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBEPBE/cc-pVDZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 -1.156 -0.059 0.000
C2 0.000 0.605 0.000
C3 0.176 2.083 0.000
H4 0.730 2.429 0.897
H5 0.730 2.429 -0.897
H6 -0.822 2.556 0.000
N7 0.999 -0.319 0.000
N8 0.459 -1.568 0.000
N9 -0.832 -1.389 0.000
H10 2.014 -0.197 0.000

Atom - Atom Distances (Å)
  N1 C2 C3 H4 H5 H6 N7 N8 N9 H10
N11.33302.52313.24853.24852.63692.17082.20971.36883.1729
C21.33301.48942.16022.16022.11791.36072.22002.16042.1676
C32.52311.48941.10891.10891.10462.53963.66193.61612.9287
H43.24852.16021.10891.79311.79652.90364.10524.22193.0580
H53.24852.16021.10891.79311.79652.90364.10524.22193.0580
H62.63692.11791.10461.79651.79653.40374.31823.94563.9527
N72.17081.36072.53962.90362.90363.40371.36032.12101.0221
N82.20972.22003.66194.10524.10524.31821.36031.30322.0728
N91.36882.16043.61614.22194.22193.94562.12101.30323.0856
H103.17292.16762.92873.05803.05803.95271.02212.07283.0856

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 126.662 N1 C2 N7 107.384
N1 N9 N8 111.550 C2 N1 N9 106.179
C2 C3 H4 111.645 C2 C3 H5 111.645
C2 C3 H6 108.553 C2 N7 N8 109.347
C2 N7 H10 130.386 C3 C2 N7 125.954
H4 C3 H5 107.895 H4 C3 H6 108.506
H5 C3 H6 108.506 N7 N8 N9 105.540
N8 N7 H10 120.267
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBE/cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 N -0.191      
2 C 0.113      
3 C -0.006      
4 H 0.065      
5 H 0.065      
6 H 0.072      
7 N -0.059      
8 N -0.072      
9 N -0.097      
10 H 0.109      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  3.986 3.790 0.000 5.501
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -33.466 -0.330 0.000
y -0.330 -36.310 0.000
z 0.000 0.000 -34.065
Traceless
 xyz
x 1.722 -0.330 0.000
y -0.330 -2.545 0.000
z 0.000 0.000 0.823
Polar
3z2-r21.645
x2-y22.844
xy-0.330
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 6.979 0.287 0.000
y 0.287 8.633 0.000
z 0.000 0.000 3.916


<r2> (average value of r2) Å2
<r2> 129.934
(<r2>)1/2 11.399