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All results from a given calculation for C2H5NO3 (Nitric acid, ethyl ester)

using model chemistry: HF/6-31G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A'
Energy calculated at HF/6-31G
 hartrees
Energy at 0K-357.316843
Energy at 298.15K-357.324919
HF Energy-357.316843
Nuclear repulsion energy251.243616
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/6-31G
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' 3293 2973 22.15      
2 A' 3280 2962 0.13      
3 A' 3213 2901 14.26      
4 A' 1675 1512 38.38      
5 A' 1661 1500 506.92      
6 A' 1654 1494 84.28      
7 A' 1592 1437 12.27      
8 A' 1549 1399 23.78      
9 A' 1400 1264 254.32      
10 A' 1245 1124 10.00      
11 A' 1109 1001 144.38      
12 A' 1060 957 113.33      
13 A' 943 852 9.64      
14 A' 770 695 2.05      
15 A' 591 533 24.77      
16 A' 401 362 10.89      
17 A' 233 210 0.82      
18 A" 3355 3030 18.61      
19 A" 3304 2983 8.52      
20 A" 1640 1481 8.87      
21 A" 1415 1278 0.41      
22 A" 1298 1172 9.42      
23 A" 916 827 0.22      
24 A" 819 739 32.55      
25 A" 255 230 0.94      
26 A" 122 110 2.60      
27 A" 93 84 1.52      

Unscaled Zero Point Vibrational Energy (zpe) 19441.4 cm-1
Scaled (by 0.9029) Zero Point Vibrational Energy (zpe) 17553.7 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/6-31G
ABC
0.33300 0.07324 0.06140

See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/6-31G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 1.097 -0.285 0.000
O2 0.000 0.515 0.000
O3 2.150 0.301 0.000
O4 0.924 -1.496 0.000
C5 -1.324 -0.144 0.000
C6 -2.311 0.999 0.000
H7 -1.387 -0.761 0.880
H8 -1.387 -0.761 -0.880
H9 -3.319 0.602 0.000
H10 -2.184 1.617 0.878
H11 -2.184 1.617 -0.878

Atom - Atom Distances (Å)
  N1 O2 O3 O4 C5 C6 H7 H8 H9 H10 H11
N11.35791.20531.22292.42533.64172.67852.67854.50413.89343.8934
O21.35792.16052.21271.47902.36082.08052.08053.31992.59952.5995
O31.20532.16052.17573.50254.51483.79713.79715.47704.61404.6140
O41.22292.21272.17572.62294.08482.58002.58004.73304.48594.4859
C52.42531.47903.50252.62291.51001.07691.07692.12982.14792.1479
C63.64172.36084.51484.08481.51002.17382.17381.08351.08101.0810
H72.67852.08053.79712.58001.07692.17381.76062.52262.50853.0632
H82.67852.08053.79712.58001.07692.17381.76062.52263.06322.5085
H94.50413.31995.47704.73302.12981.08352.52262.52261.75711.7571
H103.89342.59954.61404.48592.14791.08102.50853.06321.75711.7554
H113.89342.59954.61404.48592.14791.08103.06322.50851.75711.7554

picture of Nitric acid, ethyl ester state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
N1 O2 C5 117.434 O2 N1 O3 114.768
O2 N1 O4 117.957 O2 C5 C6 104.330
O2 C5 H7 107.942 O2 C5 H8 107.942
O3 N1 O4 127.275 C5 C6 H9 109.306
C5 C6 H10 110.902 C5 C6 H11 110.902
C6 C5 H7 113.285 C6 C5 H8 113.285
H7 C5 H8 109.662 H9 C6 H10 108.547
H9 C6 H11 108.547 H10 C6 H11 108.573
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/6-31G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 N 0.699      
2 O -0.502      
3 O -0.335      
4 O -0.389      
5 C 0.008      
6 C -0.474      
7 H 0.213      
8 H 0.213      
9 H 0.177      
10 H 0.194      
11 H 0.194      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -4.771 0.322 0.000 4.782
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -36.583 0.145 0.000
y 0.145 -40.074 0.000
z 0.000 0.000 -33.578
Traceless
 xyz
x 0.243 0.145 0.000
y 0.145 -4.993 0.000
z 0.000 0.000 4.750
Polar
3z2-r29.500
x2-y23.491
xy0.145
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 7.239 0.328 0.000
y 0.328 5.898 0.000
z 0.000 0.000 3.666


<r2> (average value of r2) Å2
<r2> 179.414
(<r2>)1/2 13.395