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All results from a given calculation for CH3NO2 (Methane, nitro-)

using model chemistry: PBEPBE/TZVP

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS Os out of place 1A'
Energy calculated at PBEPBE/TZVP
 hartrees
Energy at 0K-244.854922
Energy at 298.15K 
HF Energy-244.854922
Nuclear repulsion energy123.884911
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/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' 3110 3075 1.95      
2 A' 3014 2981 0.39      
3 A' 1427 1411 13.74      
4 A' 1365 1350 16.26      
5 A' 1333 1318 105.83      
6 A' 1090 1077 0.90      
7 A' 890 880 21.20      
8 A' 639 632 8.65      
9 A' 592 586 3.56      
10 A" 3139 3104 0.30      
11 A" 1554 1537 265.12      
12 A" 1413 1398 46.15      
13 A" 1067 1055 8.73      
14 A" 468 462 0.53      
15 A" 26 26 0.10      

Unscaled Zero Point Vibrational Energy (zpe) 10563.1 cm-1
Scaled (by 0.9888) Zero Point Vibrational Energy (zpe) 10444.8 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/TZVP
ABC
0.40345 0.34607 0.19318

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.001 -1.334 0.000
N2 -0.011 0.176 0.000
H3 1.055 -1.638 0.000
H4 -0.495 -1.680 0.911
H5 -0.495 -1.680 -0.911
O6 0.001 0.736 -1.097
O7 0.001 0.736 1.097

Atom - Atom Distances (Å)
  C1 N2 H3 H4 H5 O6 O7
C11.51011.09711.09341.09342.34262.3426
N21.51012.10372.12312.12311.23161.2316
H31.09712.10371.79851.79852.81912.8191
H41.09342.12311.79851.82293.18012.4726
H51.09342.12311.79851.82292.47263.1801
O62.34261.23162.81913.18012.47262.1939
O72.34261.23162.81912.47263.18012.1939

picture of Methane, nitro- state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 N2 O6 117.031 C1 N2 O7 117.031
N2 C1 H3 106.506 N2 C1 H4 108.203
N2 C1 H5 108.203 H3 C1 H4 110.372
H3 C1 H5 110.372 H4 C1 H5 112.929
O6 N2 O7 125.913
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBE/TZVP Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.336      
2 N 0.108      
3 H 0.175      
4 H 0.167      
5 H 0.167      
6 O -0.141      
7 O -0.141      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.044 -3.507 0.000 3.507
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -21.749 -0.103 0.000
y -0.103 -22.454 0.000
z 0.000 0.000 -26.602
Traceless
 xyz
x 2.779 -0.103 0.000
y -0.103 1.722 0.000
z 0.000 0.000 -4.501
Polar
3z2-r2-9.002
x2-y20.705
xy-0.103
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.991 -0.057 0.000
y -0.057 4.640 0.000
z 0.000 0.000 5.525


<r2> (average value of r2) Å2
<r2> 65.139
(<r2>)1/2 8.071