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

using model chemistry: QCISD/6-31G(2df,p)

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/6-31G(2df,p)
 hartrees
Energy at 0K-203.643288
Energy at 298.15K-203.647950
HF Energy-202.888563
Nuclear repulsion energy108.310675
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/6-31G(2df,p)
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' 3206 3037 7.95      
2 A' 3076 2914 33.50      
3 A' 2235 2118 470.92      
4 A' 1526 1446 13.83      
5 A' 1480 1402 13.00      
6 A' 1336 1266 133.77      
7 A' 1175 1113 11.32      
8 A' 960 910 17.18      
9 A' 686 650 6.70      
10 A' 253 239 5.84      
11 A" 3147 2982 21.79      
12 A" 1527 1447 5.94      
13 A" 1132 1072 0.57      
14 A" 611 579 9.70      
15 A" 111 105 0.66      

Unscaled Zero Point Vibrational Energy (zpe) 11230.0 cm-1
Scaled (by 0.9474) Zero Point Vibrational Energy (zpe) 10639.3 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 QCISD/6-31G(2df,p)
ABC
1.43768 0.18156 0.16630

See section I.F.4 to change rotational constant units
Geometric Data calculated at QCISD/6-31G(2df,p)

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.064 -1.549 0.000
N2 0.709 -0.295 0.000
N3 0.000 0.717 0.000
N4 -0.550 1.710 0.000
H5 0.662 -2.360 0.000
H6 -0.692 -1.636 0.892
H7 -0.692 -1.636 -0.892

Atom - Atom Distances (Å)
  C1 N2 N3 N4 H5 H6 H7
C11.47332.26763.29581.08801.09391.0939
N21.47331.23582.36782.06512.13402.1340
N32.26761.23581.13533.14742.60972.6097
N43.29582.36781.13534.24673.46573.4657
H51.08802.06513.14744.24671.77541.7754
H61.09392.13402.60973.46571.77541.7834
H71.09392.13402.60973.46571.77541.7834

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 113.371 N2 C1 H5 106.498
N2 C1 H6 111.601 N2 C1 H7 111.601
N2 N3 N4 174.000 H5 C1 H6 108.920
H5 C1 H7 108.920 H6 C1 H7 109.206
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability