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: LSDA/3-21G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A'
Energy calculated at LSDA/3-21G
 hartrees
Energy at 0K-294.329602
Energy at 298.15K-294.336953
Nuclear repulsion energy225.009319
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 A 3506 3449 81.92      
2 A 3108 3057 0.21      
3 A 2998 2948 2.72      
4 A 1526 1501 53.92      
5 A 1481 1456 6.09      
6 A 1405 1382 18.10      
7 A 1332 1311 25.88      
8 A 1271 1250 15.57      
9 A 1073 1056 0.84      
10 A 1059 1041 0.53      
11 A 1008 991 7.67      
12 A 982 966 13.61      
13 A 880 865 6.27      
14 A 842 829 14.16      
15 A 684 673 1.56      
16 A 318 312 3.90      
17 A 3062 3012 1.50      
18 A 1491 1466 17.67      
19 A 1066 1048 11.54      
20 A 702 690 0.17      
21 A 682 671 63.99      
22 A 666 655 65.95      
23 A 270 265 0.03      
24 A 121 119 0.06      

Unscaled Zero Point Vibrational Energy (zpe) 15764.6 cm-1
Scaled (by 0.9836) Zero Point Vibrational Energy (zpe) 15506.1 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 LSDA/3-21G
ABC
0.31413 0.12012 0.08837

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 -1.166 -0.039 0.000
C2 0.000 0.610 0.000
C3 0.158 2.071 0.000
H4 0.702 2.422 0.896
H5 0.702 2.422 -0.896
H6 -0.846 2.522 0.000
N7 1.015 -0.287 0.000
N8 0.483 -1.586 0.000
N9 -0.838 -1.417 0.000
H10 2.028 -0.149 0.000

Atom - Atom Distances (Å)
  N1 C2 C3 H4 H5 H6 N7 N8 N9 H10
N11.33422.49123.21633.21632.58132.19482.26131.41643.1956
C21.33421.46972.13942.13942.09091.35492.24912.19352.1656
C32.49121.46971.10491.10491.10072.50933.67203.62772.9030
H43.21632.13941.10491.79191.79082.87054.11294.23193.0288
H53.21632.13941.10491.79191.79082.87054.11294.23193.0288
H62.58132.09091.10071.79081.79083.36994.31833.93943.9238
N72.19481.35492.50932.87052.87053.36991.40382.17021.0222
N82.26132.24913.67204.11294.11294.31831.40381.33192.1097
N91.41642.19353.62774.23194.23193.93942.17021.33193.1336
H103.19562.16562.90303.02883.02883.92381.02222.10973.1336

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 125.299 N1 C2 N7 109.408
N1 N9 N8 110.688 C2 N1 N9 105.732
C2 C3 H4 111.616 C2 C3 H5 111.616
C2 C3 H6 108.009 C2 N7 N8 109.216
C2 N7 H10 130.777 C3 C2 N7 125.293
H4 C3 H5 108.374 H4 C3 H6 108.570
H5 C3 H6 108.570 N7 N8 N9 104.956
N8 N7 H10 120.008
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 -0.330      
2 C 0.529      
3 C -0.688      
4 H 0.254      
5 H 0.254      
6 H 0.279      
7 N -0.537      
8 N -0.041      
9 N -0.090      
10 H 0.370      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  4.265 4.171 0.000 5.965
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -33.629 -0.160 0.000
y -0.160 -36.584 0.000
z 0.000 0.000 -34.555
Traceless
 xyz
x 1.940 -0.160 0.000
y -0.160 -2.492 0.000
z 0.000 0.000 0.552
Polar
3z2-r21.104
x2-y22.955
xy-0.160
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 6.278 0.315 0.000
y 0.315 7.746 0.000
z 0.000 0.000 3.127


<r2> (average value of r2) Å2
<r2> 0.000
(<r2>)1/2 0.000