return to home page Computational Chemistry Comparison and Benchmark DataBase Release 22 (May 2022) Standard Reference Database 101 National Institute of Standards and Technology
You are here: Calculated > Energy > Optimized > Energy

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

using model chemistry: LSDA/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 LSDA/6-31G**
 hartrees
Energy at 0K-357.719917
Energy at 298.15K-357.727767
HF Energy-357.719917
Nuclear repulsion energy252.221039
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 LSDA/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' 3101 3043 4.91      
2 A' 3007 2951 6.53      
3 A' 2984 2928 8.98      
4 A' 1799 1766 310.69      
5 A' 1464 1437 3.90      
6 A' 1441 1414 5.78      
7 A' 1392 1366 91.32      
8 A' 1358 1333 99.00      
9 A' 1295 1271 74.58      
10 A' 1131 1110 22.64      
11 A' 1072 1052 42.40      
12 A' 919 902 46.32      
13 A' 863 847 195.92      
14 A' 708 695 17.59      
15 A' 570 559 0.14      
16 A' 382 375 1.11      
17 A' 227 223 0.46      
18 A" 3101 3043 7.94      
19 A" 3031 2974 9.65      
20 A" 1427 1400 10.16      
21 A" 1236 1213 0.48      
22 A" 1137 1115 4.75      
23 A" 792 777 0.66      
24 A" 759 745 15.22      
25 A" 260 255 0.36      
26 A" 148 145 0.74      
27 A" 77 76 0.26      

Unscaled Zero Point Vibrational Energy (zpe) 17839.8 cm-1
Scaled (by 0.9813) Zero Point Vibrational Energy (zpe) 17506.2 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 LSDA/6-31G**
ABC
0.33400 0.07490 0.06264

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 1.097 -0.306 0.000
O2 0.000 0.579 0.000
O3 2.157 0.264 0.000
O4 0.840 -1.491 0.000
C5 -1.250 -0.105 0.000
C6 -2.301 0.963 0.000
H7 -1.310 -0.759 0.890
H8 -1.310 -0.759 -0.890
H9 -3.300 0.500 0.000
H10 -2.217 1.602 0.893
H11 -2.217 1.602 -0.893

Atom - Atom Distances (Å)
  N1 O2 O3 O4 C5 C6 H7 H8 H9 H10 H11
N11.40881.20371.21282.35513.62642.60542.60544.46983.92623.9262
O21.40882.17992.23381.42462.33242.07282.07283.30072.59962.5996
O31.20372.17992.19413.42694.51213.72253.72255.46204.66024.6602
O41.21282.23382.19412.50793.98592.43922.43924.59424.43964.4396
C52.35511.42463.42692.50791.49831.10581.10582.13752.15552.1555
C63.62642.33244.51213.98591.49832.17692.17691.10121.10111.1011
H72.60542.07283.72252.43921.10582.17691.77912.51762.52953.0943
H82.60542.07283.72252.43921.10582.17691.77912.51763.09432.5295
H94.46983.30075.46204.59422.13751.10122.51762.51761.78441.7844
H103.92622.59964.66024.43962.15551.10112.52953.09431.78441.7856
H113.92622.59964.66024.43962.15551.10113.09432.52951.78441.7856

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 112.439 O2 N1 O3 112.876
O2 N1 O4 116.677 O2 C5 C6 105.850
O2 C5 H7 109.356 O2 C5 H8 109.356
O3 N1 O4 130.447 C5 C6 H9 109.688
C5 C6 H10 111.120 C5 C6 H11 111.120
C6 C5 H7 112.564 C6 C5 H8 112.564
H7 C5 H8 107.112 H9 C6 H10 108.236
H9 C6 H11 108.236 H10 C6 H11 108.348
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at LSDA/6-31G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 N 0.652      
2 O -0.320      
3 O -0.322      
4 O -0.327      
5 C -0.055      
6 C -0.461      
7 H 0.165      
8 H 0.165      
9 H 0.161      
10 H 0.171      
11 H 0.171      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -3.220 0.255 0.000 3.230
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -34.807 -0.344 0.000
y -0.344 -37.144 0.000
z 0.000 0.000 -32.953
Traceless
 xyz
x 0.241 -0.344 0.000
y -0.344 -3.264 0.000
z 0.000 0.000 3.022
Polar
3z2-r26.045
x2-y22.337
xy-0.344
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 8.440 -0.254 0.000
y -0.254 6.212 0.000
z 0.000 0.000 4.355


<r2> (average value of r2) Å2
<r2> 175.428
(<r2>)1/2 13.245