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All results from a given calculation for CH3N3 (methyl azide)

using model chemistry: QCISD/cc-pVDZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at QCISD/cc-pVDZ
 hartrees
Energy at 0K-203.544270
Energy at 298.15K-203.548887
HF Energy-202.881097
Nuclear repulsion energy107.479366
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 QCISD/cc-pVDZ
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' 3187 3057 11.86      
2 A' 3045 2921 46.11      
3 A' 2209 2119 438.59      
4 A' 1494 1433 14.09      
5 A' 1451 1392 17.43      
6 A' 1326 1272 128.46      
7 A' 1157 1110 16.70      
8 A' 959 920 15.81      
9 A' 665 638 6.67      
10 A' 249 239 5.49      
11 A" 3118 2992 34.31      
12 A" 1495 1434 5.62      
13 A" 1109 1064 0.98      
14 A" 571 548 10.82      
15 A" 110 105 0.67      

Unscaled Zero Point Vibrational Energy (zpe) 11071.1 cm-1
Scaled (by 0.9594) Zero Point Vibrational Energy (zpe) 10621.7 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 QCISD/cc-pVDZ
ABC
1.42440 0.17884 0.16395

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.073 -1.557 0.000
N2 0.712 -0.305 0.000
N3 0.000 0.719 0.000
N4 -0.540 1.730 0.000
H5 0.654 -2.382 0.000
H6 -0.709 -1.643 0.901
H7 -0.709 -1.643 -0.901

Atom - Atom Distances (Å)
  C1 N2 N3 N4 H5 H6 H7
C11.47702.27693.32001.09981.10681.1068
N21.47701.24712.38932.07802.14982.1498
N32.27691.24711.14633.16952.62592.6259
N43.32002.38931.14634.28233.49603.4960
H51.09982.07803.16954.28231.79351.7935
H61.10682.14982.62593.49601.79351.8025
H71.10682.14982.62593.49601.79351.8025

picture of methyl azide state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 N2 N3 113.133 N2 C1 H5 106.576
N2 C1 H6 111.818 N2 C1 H7 111.818
N2 N3 N4 173.298 H5 C1 H6 108.739
H5 C1 H7 108.739 H6 C1 H7 109.041
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability