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: mPW1PW91/6-31G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A
Energy calculated at mPW1PW91/6-31G
 hartrees
Energy at 0K-339.443954
Energy at 298.15K-339.452833
Nuclear repulsion energy258.448486
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 mPW1PW91/6-31G
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 3225 3053 12.29      
2 A 3215 3043 1.38      
3 A 3172 3002 22.28      
4 A 3169 3000 0.00      
5 A 3096 2930 12.39      
6 A 3090 2925 21.16      
7 A 1566 1482 49.35      
8 A 1564 1480 64.08      
9 A 1530 1448 28.35      
10 A 1527 1445 23.70      
11 A 1524 1442 116.81      
12 A 1515 1434 0.00      
13 A 1490 1410 41.04      
14 A 1364 1291 0.84      
15 A 1332 1261 260.65      
16 A 1282 1213 78.22      
17 A 1181 1118 0.02      
18 A 1168 1106 0.00      
19 A 1091 1033 21.05      
20 A 1045 989 3.68      
21 A 839 794 2.25      
22 A 746 706 19.45      
23 A 632 598 10.60      
24 A 629 596 2.84      
25 A 416 394 5.11      
26 A 322 305 3.33      
27 A 194 183 5.46      
28 A 166 157 0.00      
29 A 97 92 0.00      
30 A 54 51 1.15      

Unscaled Zero Point Vibrational Energy (zpe) 21118.3 cm-1
Scaled (by 0.9466) Zero Point Vibrational Energy (zpe) 19990.6 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 mPW1PW91/6-31G
ABC
0.16833 0.13379 0.07668

See section I.F.4 to change rotational constant units
Geometric Data calculated at mPW1PW91/6-31G

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 1.362 1.122 -0.000
O2 1.362 -1.122 0.000
H3 -0.959 1.872 0.884
H4 -2.309 1.115 0.001
H5 -0.960 1.872 -0.885
C6 -1.235 1.293 0.000
H7 -0.960 -1.871 0.885
H8 -0.959 -1.872 -0.884
H9 -2.309 -1.115 -0.001
C10 -1.235 -1.293 -0.000
N11 0.784 -0.000 -0.000
N12 -0.572 0.000 -0.000

Atom - Atom Distances (Å)
  O1 O2 H3 H4 H5 C6 H7 H8 H9 C10 N11 N12
O12.24322.59453.67062.59592.60303.89033.88984.29843.54631.26162.2359
O22.24323.88964.29843.89043.54632.59582.59453.67062.60301.26162.2358
H32.59453.88961.78171.76891.09233.74324.14053.39523.29762.70642.1060
H43.67064.29841.78171.78171.08793.39383.39542.23032.63643.28792.0637
H52.59593.89041.76891.78171.09234.14013.74363.39393.29732.70742.1061
C62.60303.54631.09231.08791.09233.29713.29782.63652.58592.39811.4531
H73.89032.59583.74323.39384.14013.29711.76891.78171.09232.70732.1061
H83.88982.59454.14053.39543.74363.29781.76891.78161.09232.70652.1061
H94.29843.67063.39522.23033.39392.63651.78171.78161.08793.28792.0637
C103.54632.60303.29762.63643.29732.58591.09231.09231.08792.39811.4531
N111.26161.26162.70643.28792.70742.39812.70732.70653.28792.39811.3566
N122.23592.23582.10602.06372.10611.45312.10612.10612.06371.45311.3566

picture of Dimethylnitroamine state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
O1 N11 O2 125.507 O1 N11 N12 117.247
O2 N11 N12 117.246 H3 C6 H4 109.607
H3 C6 H5 108.133 H3 C6 N12 110.867
H4 C6 H5 109.607 H4 C6 N12 107.745
H5 C6 N12 110.874 C6 N12 C10 125.694
C6 N12 N11 117.153 H7 C10 H8 108.132
H7 C10 H9 109.607 H7 C10 N12 110.873
H8 C10 H9 109.606 H8 C10 N12 110.868
H9 C10 N12 107.746 C10 N12 N11 117.153
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at mPW1PW91/6-31G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 O -0.332      
2 O -0.332      
3 H 0.219      
4 H 0.181      
5 H 0.219      
6 C -0.285      
7 H 0.219      
8 H 0.219      
9 H 0.181      
10 C -0.285      
11 N 0.339      
12 N -0.341      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -5.464 0.000 0.000 5.464
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -37.707 0.000 -0.000
y 0.000 -35.817 0.002
z -0.000 0.002 -34.694
Traceless
 xyz
x -2.451 0.000 -0.000
y 0.000 0.383 0.002
z -0.000 0.002 2.068
Polar
3z2-r24.136
x2-y2-1.890
xy0.000
xz-0.000
yz0.002


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 7.491 0.000 0.000
y 0.000 7.490 -0.001
z 0.000 -0.001 3.945


<r2> (average value of r2) Å2
<r2> 151.283
(<r2>)1/2 12.300