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

using model chemistry: mPW1PW91/6-311+G(3df,2p)

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 mPW1PW91/6-311+G(3df,2p)
 hartrees
Energy at 0K-245.041509
Energy at 298.15K 
HF Energy-245.041509
Nuclear repulsion energy125.965492
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 mPW1PW91/6-311+G(3df,2p)
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' 3193 3193 1.62      
2 A' 3098 3098 0.58      
3 A' 1487 1487 49.43      
4 A' 1468 1468 51.97      
5 A' 1412 1412 12.86      
6 A' 1143 1143 1.26      
7 A' 959 959 11.80      
8 A' 683 683 18.03      
9 A' 631 631 4.40      
10 A" 3225 3225 0.05      
11 A" 1691 1691 367.18      
12 A" 1467 1467 38.61      
13 A" 1116 1116 9.78      
14 A" 488 488 0.97      
15 A" 32 32 0.01      

Unscaled Zero Point Vibrational Energy (zpe) 11046.4 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 11046.4 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 mPW1PW91/6-311+G(3df,2p)
ABC
0.41830 0.35702 0.19986

See section I.F.4 to change rotational constant units
Geometric Data calculated at mPW1PW91/6-311+G(3df,2p)

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 -1.616 0.000
H4 -0.490 -1.654 0.904
H5 -0.490 -1.654 -0.904
O6 0.000 0.724 -1.076
O7 0.000 0.724 1.076

Atom - Atom Distances (Å)
  C1 N2 H3 H4 H5 O6 O7
C11.48631.08731.08351.08352.30382.3038
N21.48632.07692.09502.09501.20911.2091
H31.08732.07691.78131.78132.77972.7797
H41.08352.09501.78131.80723.13342.4347
H51.08352.09501.78131.80722.43473.1334
O62.30381.20912.77973.13342.43472.1530
O72.30381.20912.77972.43473.13342.1530

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 117.082 C1 N2 O7 117.082
N2 C1 H3 106.580 N2 C1 H4 108.206
N2 C1 H5 108.206 H3 C1 H4 110.287
H3 C1 H5 110.287 H4 C1 H5 113.024
O6 N2 O7 125.819
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at mPW1PW91/6-311+G(3df,2p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.228      
2 N 0.471      
3 H 0.133      
4 H 0.139      
5 H 0.139      
6 O -0.555      
7 O -0.555      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.022 -3.576 0.000 3.576
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -21.607 -0.080 0.000
y -0.080 -22.166 0.000
z 0.000 0.000 -26.333
Traceless
 xyz
x 2.643 -0.080 0.000
y -0.080 1.804 0.000
z 0.000 0.000 -4.446
Polar
3z2-r2-8.893
x2-y20.559
xy-0.080
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.363 -0.037 0.000
y -0.037 4.954 0.000
z 0.000 0.000 5.531


<r2> (average value of r2) Å2
<r2> 63.367
(<r2>)1/2 7.960