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All results from a given calculation for CH3NO3 (Methyl nitrate)

using model chemistry: HF/3-21G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at HF/3-21G*
 hartrees
Energy at 0K-316.649782
Energy at 298.15K-316.655541
Nuclear repulsion energy186.529377
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 HF/3-21G*
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' 3364 3037 2.25      
2 A' 3267 2948 8.19      
3 A' 1674 1511 12.94      
4 A' 1608 1451 0.34      
5 A' 1462 1320 428.05      
6 A' 1270 1146 51.91      
7 A' 1257 1135 201.24      
8 A' 1097 990 101.14      
9 A' 913 824 23.96      
10 A' 688 621 3.26      
11 A' 584 527 24.40      
12 A' 357 322 6.97      
13 A" 3363 3036 9.96      
14 A" 1655 1494 10.88      
15 A" 1266 1143 1.06      
16 A" 759 685 37.87      
17 A" 232 209 1.23      
18 A" 131 118 5.05      

Unscaled Zero Point Vibrational Energy (zpe) 12473.1 cm-1
Scaled (by 0.9026) Zero Point Vibrational Energy (zpe) 11258.3 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 HF/3-21G*
ABC
0.38947 0.15391 0.11264

See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/3-21G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 0.000 0.618 0.000
O2 -1.231 0.514 0.000
O3 0.682 1.626 0.000
O4 0.739 -0.578 0.000
C5 -0.113 -1.776 0.000
H6 0.606 -2.576 0.000
H7 -0.725 -1.793 0.884
H8 -0.725 -1.793 -0.884

Atom - Atom Distances (Å)
  N1 O2 O3 O4 C5 H6 H7 H8
N11.23511.21681.40572.39613.25102.66822.6682
O21.23512.21262.25182.54743.59422.52142.5214
O31.21682.21262.20423.49284.20243.80103.8010
O41.40572.25182.20421.46972.00272.09772.0977
C52.39612.54743.49281.46971.07591.07531.0753
H63.25103.59424.20242.00271.07591.77921.7792
H72.66822.52143.80102.09771.07531.77921.7682
H82.66822.52143.80102.09771.07531.77921.7682

picture of Methyl nitrate state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
N1 O4 C5 112.868 O2 N1 O3 128.945
O2 N1 O4 116.861 O3 N1 O4 114.195
O4 C5 H6 102.665 O4 C5 H7 110.059
O4 C5 H8 110.059 H6 C5 H7 111.595
H6 C5 H8 111.595 H7 C5 H8 110.606
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/3-21G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 N 0.718 1.067    
2 O -0.389 -0.496    
3 O -0.346 -0.467    
4 O -0.434 -0.445    
5 C -0.296 0.032    
6 H 0.253 0.122    
7 H 0.247 0.094    
8 H 0.247 0.094    


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.476 -3.818 0.000 3.848
CHELPG -0.490 -3.870 0.000 3.901
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -32.820 0.280 0.000
y 0.280 -25.856 0.000
z 0.000 0.000 -26.831
Traceless
 xyz
x -6.477 0.280 0.000
y 0.280 3.970 0.000
z 0.000 0.000 2.507
Polar
3z2-r25.014
x2-y2-6.965
xy0.280
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.188 0.570 0.000
y 0.570 5.110 0.000
z 0.000 0.000 2.024


<r2> (average value of r2) Å2
<r2> 101.642
(<r2>)1/2 10.082