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 C2H6N2O2 (Dimethylnitroamine)

using model chemistry: B2PLYP/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 B2PLYP/6-31G*
 hartrees
Energy at 0K-339.318586
Energy at 298.15K-339.327735
HF Energy-338.992004
Nuclear repulsion energy259.830708
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 B2PLYP/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 3232 3068 3.99      
2 A 3229 3065 1.71      
3 A 3181 3019 30.77      
4 A 3175 3014 0.07      
5 A 3081 2925 42.42      
6 A 3076 2920 19.65      
7 A 1652 1568 226.82      
8 A 1562 1483 37.85      
9 A 1543 1465 1.21      
10 A 1541 1463 9.70      
11 A 1526 1448 12.34      
12 A 1515 1438 23.75      
13 A 1474 1399 5.51      
14 A 1353 1284 265.90      
15 A 1333 1265 2.90      
16 A 1292 1226 2.31      
17 A 1180 1120 61.73      
18 A 1151 1092 3.05      
19 A 1074 1020 12.84      
20 A 1013 961 61.25      
21 A 856 812 13.38      
22 A 774 734 19.10      
23 A 624 593 1.52      
24 A 614 582 8.34      
25 A 427 405 3.96      
26 A 363 345 1.92      
27 A 228 216 11.31      
28 A 157 149 0.49      
29 A 149 141 3.12      
30 A 119 113 0.00      

Unscaled Zero Point Vibrational Energy (zpe) 21245.3 cm-1
Scaled (by 0.9492) Zero Point Vibrational Energy (zpe) 20166.0 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 B2PLYP/6-31G*
ABC
0.17396 0.13265 0.07823

See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP/6-31G*

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 1.429 1.105 -0.033
O2 1.430 -1.109 -0.034
H3 -1.360 1.199 1.142
H4 -2.273 1.181 -0.383
H5 -0.746 2.084 -0.272
C6 -1.276 1.191 0.058
H7 -1.400 -1.174 1.144
H8 -0.745 -2.083 -0.240
H9 -2.268 -1.186 -0.409
C10 -1.284 -1.187 0.059
N11 0.728 0.000 0.228
N12 -0.545 -0.002 -0.391

Atom - Atom Distances (Å)
  O1 O2 H3 H4 H5 C6 H7 H8 H9 C10 N11 N12
O12.21473.02843.71942.39722.70853.81933.86544.36593.55321.33482.2920
O22.21473.80744.36763.87123.55283.06612.39233.71762.71611.33882.2924
H33.02843.80741.77791.77771.08772.37343.61452.98632.62212.57562.1111
H43.71944.36761.77791.77711.08982.93893.60702.36672.60453.28202.0935
H52.39723.87121.77771.77711.08963.61174.16743.60893.33152.60072.0985
C62.70853.55281.08771.08981.08962.60503.33052.61722.37832.33741.4691
H73.81933.06612.37342.93893.61172.60501.78061.77851.09092.59742.1116
H83.86542.39233.61453.60704.16743.33051.78061.77581.08722.59452.0967
H94.36593.71762.98632.36673.60892.61721.77851.77581.09013.28442.0903
C103.55322.71612.62212.60453.33152.37831.09091.08721.09012.34201.4673
N111.33481.33882.57563.28202.60072.33742.59742.59453.28442.34201.4156
N122.29202.29242.11112.09352.09851.46912.11162.09672.09031.46731.4156

picture of Dimethylnitroamine state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
O1 N11 O2 111.866 O1 N11 N12 112.853
O2 N11 N12 112.638 H3 C6 H4 109.467
H3 C6 H5 109.469 H3 C6 N12 110.428
H4 C6 H5 109.255 H4 C6 N12 108.894
H5 C6 N12 109.308 C6 N12 C10 108.188
C6 N12 N11 108.231 H7 C10 H8 109.672
H7 C10 H9 109.264 H7 C10 N12 110.404
H8 C10 H9 109.293 H8 C10 N12 109.434
H9 C10 N12 108.752 C10 N12 N11 108.642
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B2PLYP/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 O -0.448      
2 O -0.448      
3 H 0.178      
4 H 0.176      
5 H 0.217      
6 C -0.304      
7 H 0.178      
8 H 0.217      
9 H 0.176      
10 C -0.304      
11 N 0.690      
12 N -0.328      


Electric dipole moments


Electric Quadrupole moment
Quadrupole components in D Å


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 7.600 0.000 0.098
y 0.000 7.434 0.000
z 0.098 0.000 4.371


<r2> (average value of r2) Å2
<r2> 149.218
(<r2>)1/2 12.215