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

using model chemistry: mPW1PW91/cc-pVTZ

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 mPW1PW91/cc-pVTZ
 hartrees
Energy at 0K-245.042696
Energy at 298.15K 
HF Energy-245.042696
Nuclear repulsion energy125.901128
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 mPW1PW91/cc-pVTZ
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' 3194 3064 1.68      
2 A' 3099 2973 0.40      
3 A' 1485 1424 44.30      
4 A' 1466 1406 68.86      
5 A' 1408 1350 12.23      
6 A' 1141 1095 1.84      
7 A' 957 918 15.01      
8 A' 683 655 19.43      
9 A' 630 604 5.18      
10 A" 3226 3095 0.23      
11 A" 1699 1630 334.34      
12 A" 1465 1405 35.30      
13 A" 1114 1069 9.44      
14 A" 487 467 0.77      
15 A" 21 20 0.03      

Unscaled Zero Point Vibrational Energy (zpe) 11037.4 cm-1
Scaled (by 0.9592) Zero Point Vibrational Energy (zpe) 10587.1 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 mPW1PW91/cc-pVTZ
ABC
0.41747 0.35698 0.19966

See section I.F.4 to change rotational constant units
Geometric Data calculated at mPW1PW91/cc-pVTZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 -1.313 0.000
N2 -0.009 0.174 0.000
H3 1.044 -1.618 0.000
H4 -0.491 -1.654 0.903
H5 -0.491 -1.654 -0.903
O6 0.000 0.724 -1.078
O7 0.000 0.724 1.078

Atom - Atom Distances (Å)
  C1 N2 H3 H4 H5 O6 O7
C11.48681.08741.08361.08362.30432.3043
N21.48682.07882.09552.09551.20991.2099
H31.08742.07881.78141.78142.78142.7814
H41.08362.09551.78141.80683.13412.4348
H51.08362.09551.78141.80682.43483.1341
O62.30431.20992.78143.13412.43482.1553
O72.30431.20992.78142.43483.13412.1553

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 117.032 C1 N2 O7 117.032
N2 C1 H3 106.680 N2 C1 H4 108.200
N2 C1 H5 108.200 H3 C1 H4 110.278
H3 C1 H5 110.278 H4 C1 H5 112.962
O6 N2 O7 125.919
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at mPW1PW91/cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.134      
2 N 0.346      
3 H 0.117      
4 H 0.110      
5 H 0.110      
6 O -0.275      
7 O -0.275      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.036 -3.481 0.000 3.482
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -21.310 -0.087 0.000
y -0.087 -21.883 0.000
z 0.000 0.000 -26.146
Traceless
 xyz
x 2.704 -0.087 0.000
y -0.087 1.845 0.000
z 0.000 0.000 -4.549
Polar
3z2-r2-9.098
x2-y20.573
xy-0.087
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.915 -0.027 0.000
y -0.027 4.350 0.000
z 0.000 0.000 5.134


<r2> (average value of r2) Å2
<r2> 63.253
(<r2>)1/2 7.953