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, 1-methyl-)

using model chemistry: HF/TZVP

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at HF/TZVP
 hartrees
Energy at 0K-295.879700
Energy at 298.15K-295.887417
HF Energy-295.879700
Nuclear repulsion energy234.534708
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/TZVP
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' 3439 3125 0.41      
2 A' 3298 2996 10.57      
3 A' 3211 2918 28.13      
4 A' 1686 1532 58.63      
5 A' 1656 1505 10.67      
6 A' 1611 1464 7.13      
7 A' 1587 1442 20.42      
8 A' 1526 1386 11.52      
9 A' 1410 1281 9.01      
10 A' 1334 1212 33.63      
11 A' 1246 1132 51.45      
12 A' 1158 1052 3.10      
13 A' 1131 1028 17.03      
14 A' 1095 995 3.76      
15 A' 742 674 14.46      
16 A' 382 347 1.51      
17 A" 3291 2990 11.35      
18 A" 1601 1454 8.94      
19 A" 1256 1142 0.43      
20 A" 991 901 12.00      
21 A" 808 734 1.49      
22 A" 711 646 9.40      
23 A" 236 215 0.01      
24 A" 53 48 0.16      

Unscaled Zero Point Vibrational Energy (zpe) 17729.8 cm-1
Scaled (by 0.9086) Zero Point Vibrational Energy (zpe) 16109.3 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/TZVP
ABC
0.34031 0.13039 0.09596

See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/TZVP

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -1.068 -0.231 0.000
N2 0.000 0.557 0.000
N3 1.065 -0.228 0.000
N4 0.658 -1.410 0.000
N5 -0.678 -1.459 0.000
H6 -2.078 0.113 0.000
C7 0.121 1.998 0.000
H8 -0.871 2.425 0.000
H9 0.653 2.321 0.883
H10 0.653 2.321 -0.883

Atom - Atom Distances (Å)
  C1 N2 N3 N4 N5 H6 C7 H8 H9 H10
C11.32682.13292.09001.28871.06782.52652.66333.20163.2016
N21.32681.32362.07452.12702.12531.44642.06092.07762.0776
N32.13291.32361.25042.13383.16232.41853.28462.72892.7289
N42.09002.07451.25041.33633.13173.45074.12883.83413.8341
N51.28872.12702.13381.33632.10573.54863.88914.10334.1033
H61.06782.12533.16233.13172.10572.89722.60863.62133.6213
C72.52651.44642.41853.45073.54862.89721.07981.07991.0799
H82.66332.06093.28464.12883.88912.60861.07981.76401.7640
H93.20162.07762.72893.83414.10333.62131.07991.76401.7662
H103.20162.07762.72893.83414.10333.62131.07991.76401.7662

picture of 1H-Tetrazole, 1-methyl- state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 N2 N3 107.174 C1 N2 C7 131.246
C1 N5 N4 105.522 N2 C1 N5 108.818
N2 C1 H6 124.783 N2 N3 N4 107.372
N2 C7 H8 108.465 N2 C7 H9 109.797
N2 C7 H10 109.797 N3 N2 C7 121.580
N3 N4 N5 111.114 N5 C1 H6 126.399
H8 C7 H9 109.522 H8 C7 H10 109.522
H9 C7 H10 109.718
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/TZVP Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.100      
2 N 0.013      
3 N -0.086      
4 N -0.069      
5 N -0.098      
6 H 0.132      
7 C -0.158      
8 H 0.105      
9 H 0.131      
10 H 0.131      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -2.380 5.816 0.000 6.284
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -35.498 -0.670 0.000
y -0.670 -36.943 0.000
z 0.000 0.000 -34.527
Traceless
 xyz
x 0.237 -0.670 0.000
y -0.670 -1.931 0.000
z 0.000 0.000 1.693
Polar
3z2-r23.386
x2-y21.445
xy-0.670
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 6.877 0.125 0.000
y 0.125 7.922 0.000
z 0.000 0.000 4.515


<r2> (average value of r2) Å2
<r2> 123.186
(<r2>)1/2 11.099