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

using model chemistry: HF/CEP-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/CEP-31G
 hartrees
Energy at 0K-70.299285
Energy at 298.15K-70.307265
HF Energy-70.299285
Nuclear repulsion energy138.993098
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/CEP-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' 3324 2997 63.91      
2 A' 3312 2986 0.41      
3 A' 3235 2916 30.39      
4 A' 1656 1493 10.08      
5 A' 1637 1476 3.52      
6 A' 1595 1438 524.65      
7 A' 1573 1418 98.68      
8 A' 1529 1378 75.45      
9 A' 1381 1245 260.26      
10 A' 1230 1109 7.65      
11 A' 1111 1001 141.07      
12 A' 1062 957 67.55      
13 A' 927 836 0.53      
14 A' 732 660 5.05      
15 A' 567 511 29.20      
16 A' 394 355 13.54      
17 A' 228 205 0.86      
18 A" 3397 3062 52.28      
19 A" 3336 3007 27.82      
20 A" 1620 1460 8.92      
21 A" 1394 1257 0.48      
22 A" 1284 1158 9.65      
23 A" 900 811 0.41      
24 A" 772 696 20.11      
25 A" 246 222 1.03      
26 A" 117 106 2.30      
27 A" 94 85 2.25      

Unscaled Zero Point Vibrational Energy (zpe) 19325.7 cm-1
Scaled (by 0.9014) Zero Point Vibrational Energy (zpe) 17420.1 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 HF/CEP-31G
ABC
0.32157 0.07160 0.05987

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 1.101 -0.292 0.000
O2 0.000 0.529 0.000
O3 2.186 0.292 0.000
O4 0.918 -1.532 0.000
C5 -1.336 -0.136 0.000
C6 -2.330 1.024 0.000
H7 -1.399 -0.755 0.886
H8 -1.399 -0.755 -0.886
H9 -3.343 0.622 0.000
H10 -2.202 1.644 0.884
H11 -2.202 1.644 -0.884

Atom - Atom Distances (Å)
  N1 O2 O3 O4 C5 C6 H7 H8 H9 H10 H11
N11.37301.23241.25322.44193.67502.69212.69214.53663.92873.9287
O21.37302.19912.25561.49242.38252.09482.09483.34412.62142.6214
O31.23242.19912.22123.54834.57573.83833.83835.53894.67574.6757
O41.25322.25562.22122.65114.13352.59942.59944.77414.53854.5385
C52.44191.49243.54832.65111.52831.08231.08232.14512.16782.1678
C63.67502.38254.57574.13351.52832.19482.19481.08941.08691.0869
H72.69212.09483.83832.59941.08232.19481.77222.54142.52943.0869
H82.69212.09483.83832.59941.08232.19481.77222.54143.08692.5294
H94.53663.34415.53894.77412.14511.08942.54142.54141.76861.7686
H103.92872.62144.67574.53852.16781.08692.52943.08691.76861.7670
H113.92872.62144.67574.53852.16781.08693.08692.52941.76861.7670

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 116.840 O2 N1 O3 115.030
O2 N1 O4 118.313 O2 C5 C6 104.129
O2 C5 H7 107.839 O2 C5 H8 107.839
O3 N1 O4 126.657 C5 C6 H9 108.905
C5 C6 H10 110.849 C5 C6 H11 110.849
C6 C5 H7 113.336 C6 C5 H8 113.336
H7 C5 H8 109.920 H9 C6 H10 108.714
H9 C6 H11 108.714 H10 C6 H11 108.758
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/CEP-31G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 N 0.113      
2 O -0.231      
3 O -0.114      
4 O -0.171      
5 C -0.099      
6 C -0.206      
7 H 0.166      
8 H 0.166      
9 H 0.122      
10 H 0.127      
11 H 0.127      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -5.044 0.428 0.000 5.063
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -36.907 0.305 0.000
y 0.305 -40.480 0.000
z 0.000 0.000 -33.482
Traceless
 xyz
x 0.075 0.305 0.000
y 0.305 -5.286 0.000
z 0.000 0.000 5.211
Polar
3z2-r210.423
x2-y23.574
xy0.305
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 7.628 0.333 0.000
y 0.333 6.233 0.000
z 0.000 0.000 3.546


<r2> (average value of r2) Å2
<r2> 147.546
(<r2>)1/2 12.147