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

using model chemistry: mPW1PW91/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 mPW1PW91/TZVP
 hartrees
Energy at 0K-245.038339
Energy at 298.15K 
HF Energy-245.038339
Nuclear repulsion energy125.652857
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/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' 3203 3055 1.48      
2 A' 3104 2962 0.29      
3 A' 1483 1415 22.29      
4 A' 1460 1393 86.76      
5 A' 1415 1350 20.75      
6 A' 1144 1091 1.40      
7 A' 954 910 15.27      
8 A' 682 651 16.99      
9 A' 627 598 5.51      
10 A" 3234 3085 0.07      
11 A" 1681 1604 356.68      
12 A" 1469 1401 39.19      
13 A" 1119 1068 10.94      
14 A" 490 468 0.66      
15 A" 25 24 0.05      

Unscaled Zero Point Vibrational Energy (zpe) 11045.2 cm-1
Scaled (by 0.954) Zero Point Vibrational Energy (zpe) 10537.1 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/TZVP
ABC
0.41661 0.35474 0.19879

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.001 -1.317 0.000
N2 -0.011 0.174 0.000
H3 1.046 -1.619 0.000
H4 -0.491 -1.659 0.904
H5 -0.491 -1.659 -0.904
O6 0.001 0.726 -1.079
O7 0.001 0.726 1.079

Atom - Atom Distances (Å)
  C1 N2 H3 H4 H5 O6 O7
C11.49151.08831.08451.08452.31092.3109
N21.49152.08202.09982.09981.21201.2120
H31.08832.08201.78401.78402.78562.7856
H41.08452.09981.78401.80793.14092.4422
H51.08452.09981.78401.80792.44223.1409
O62.31091.21202.78563.14092.44222.1575
O72.31091.21202.78562.44223.14092.1575

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 117.105 C1 N2 O7 117.105
N2 C1 H3 106.573 N2 C1 H4 108.164
N2 C1 H5 108.164 H3 C1 H4 110.382
H3 C1 H5 110.382 H4 C1 H5 112.924
O6 N2 O7 125.765
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at mPW1PW91/TZVP Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.324      
2 N 0.182      
3 H 0.172      
4 H 0.166      
5 H 0.166      
6 O -0.181      
7 O -0.181      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.038 -3.692 0.000 3.693
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -21.476 -0.096 0.000
y -0.096 -22.175 0.000
z 0.000 0.000 -26.528
Traceless
 xyz
x 2.875 -0.096 0.000
y -0.096 1.827 0.000
z 0.000 0.000 -4.702
Polar
3z2-r2-9.404
x2-y20.699
xy-0.096
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.854 -0.054 0.000
y -0.054 4.252 0.000
z 0.000 0.000 5.330


<r2> (average value of r2) Å2
<r2> 63.638
(<r2>)1/2 7.977