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: M06-2X/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 M06-2X/6-31G**
 hartrees
Energy at 0K-359.355029
Energy at 298.15K-359.363007
HF Energy-359.355029
Nuclear repulsion energy252.847682
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 M06-2X/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' 3169 3012 10.36      
2 A' 3112 2958 9.34      
3 A' 3083 2930 8.02      
4 A' 1834 1743 438.76      
5 A' 1536 1460 0.97      
6 A' 1512 1437 6.48      
7 A' 1467 1394 96.26      
8 A' 1427 1356 101.06      
9 A' 1378 1310 111.68      
10 A' 1167 1109 30.91      
11 A' 1093 1039 100.40      
12 A' 998 948 161.64      
13 A' 926 880 39.40      
14 A' 753 716 1.90      
15 A' 599 569 3.75      
16 A' 398 378 3.06      
17 A' 237 225 0.30      
18 A" 3182 3024 23.91      
19 A" 3161 3004 1.60      
20 A" 1496 1422 6.75      
21 A" 1302 1237 1.03      
22 A" 1187 1128 5.58      
23 A" 824 783 1.63      
24 A" 806 766 18.77      
25 A" 239 227 0.65      
26 A" 121 115 0.85      
27 A" 98 93 0.20      

Unscaled Zero Point Vibrational Energy (zpe) 18551.7 cm-1
Scaled (by 0.9504) Zero Point Vibrational Energy (zpe) 17631.5 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 M06-2X/6-31G**
ABC
0.33657 0.07474 0.06260

See section I.F.4 to change rotational constant units
Geometric Data calculated at M06-2X/6-31G**

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 1.094 -0.287 0.000
O2 0.000 0.551 0.000
O3 2.139 0.300 0.000
O4 0.889 -1.476 0.000
C5 -1.266 -0.138 0.000
C6 -2.314 0.954 0.000
H7 -1.326 -0.773 0.887
H8 -1.326 -0.773 -0.887
H9 -3.308 0.500 0.000
H10 -2.218 1.582 0.887
H11 -2.218 1.582 -0.887

Atom - Atom Distances (Å)
  N1 O2 O3 O4 C5 C6 H7 H8 H9 H10 H11
N11.37831.19831.20682.36523.62702.62282.62284.47153.90523.9052
O21.37832.15342.21381.44162.34892.07322.07323.30802.60182.6018
O31.19832.15342.17203.43314.50053.73383.73385.45004.62724.6272
O41.20682.21382.17202.53714.02042.48732.48734.63864.44904.4490
C52.36521.44163.43312.53711.51291.09271.09272.13862.15662.1566
C63.62702.34894.50054.02041.51292.17832.17831.09221.09161.0916
H72.62282.07323.73382.48731.09272.17831.77422.51692.51843.0807
H82.62282.07323.73382.48731.09272.17831.77422.51693.08072.5184
H94.47153.30805.45004.63862.13861.09222.51692.51691.77361.7736
H103.90522.60184.62724.44902.15661.09162.51843.08071.77361.7746
H113.90522.60184.62724.44902.15661.09163.08072.51841.77361.7746

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 113.998 O2 N1 O3 113.206
O2 N1 O4 117.667 O2 C5 C6 105.285
O2 C5 H7 109.004 O2 C5 H8 109.004
O3 N1 O4 129.127 C5 C6 H9 109.291
C5 C6 H10 110.753 C5 C6 H11 110.753
C6 C5 H7 112.436 C6 C5 H8 112.436
H7 C5 H8 108.553 H9 C6 H10 108.620
H9 C6 H11 108.620 H10 C6 H11 108.750
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at M06-2X/6-31G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 N 0.790      
2 O -0.405      
3 O -0.373      
4 O -0.392      
5 C 0.018      
6 C -0.395      
7 H 0.153      
8 H 0.153      
9 H 0.144      
10 H 0.153      
11 H 0.153      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -3.569 0.260 0.000 3.579
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -35.274 -0.090 0.000
y -0.090 -37.600 0.000
z 0.000 0.000 -32.986
Traceless
 xyz
x 0.019 -0.090 0.000
y -0.090 -3.470 0.000
z 0.000 0.000 3.451
Polar
3z2-r26.901
x2-y22.326
xy-0.090
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 7.746 -0.013 0.000
y -0.013 6.076 0.000
z 0.000 0.000 4.260


<r2> (average value of r2) Å2
<r2> 175.712
(<r2>)1/2 13.256