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All results from a given calculation for C2H6N2O2 (Dimethylnitroamine)

using model chemistry: HF/3-21G

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/3-21G
 hartrees
Energy at 0K-335.776288
Energy at 298.15K-335.785496
Nuclear repulsion energy259.511447
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/3-21G
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 3336 3021 17.54      
2 A 3324 3010 2.10      
3 A 3304 2992 28.66      
4 A 3301 2989 0.00      
5 A 3240 2935 9.15      
6 A 3235 2929 17.48      
7 A 1692 1532 37.37      
8 A 1683 1524 7.64      
9 A 1664 1507 14.62      
10 A 1655 1499 0.00      
11 A 1641 1486 8.48      
12 A 1613 1461 0.26      
13 A 1494 1353 154.72      
14 A 1380 1250 62.02      
15 A 1272 1152 1.69      
16 A 1270 1150 123.00      
17 A 1261 1142 0.02      
18 A 1254 1135 404.74      
19 A 1153 1045 27.56      
20 A 1066 965 1.56      
21 A 827 749 0.04      
22 A 788 713 46.43      
23 A 633 573 31.93      
24 A 619 561 4.19      
25 A 425 385 6.00      
26 A 351 318 5.10      
27 A 218 197 5.84      
28 A 196 177 0.00      
29 A 141 128 0.00      
30 A 95 86 2.88      

Unscaled Zero Point Vibrational Energy (zpe) 22064.4 cm-1
Scaled (by 0.9056) Zero Point Vibrational Energy (zpe) 19981.6 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 HF/3-21G
ABC
0.16658 0.13713 0.07736

See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/3-21G

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 1.346 -1.120 0.000
O2 1.346 1.120 0.000
H3 -0.936 -1.872 -0.877
H4 -2.285 -1.142 0.001
H5 -0.935 -1.871 0.878
C6 -1.220 -1.311 0.000
H7 -0.935 1.872 -0.877
H8 -0.936 1.871 0.878
H9 -2.284 1.142 -0.001
C10 -1.220 1.311 0.000
N11 0.772 -0.000 -0.000
N12 -0.569 0.000 -0.001

Atom - Atom Distances (Å)
  O1 O2 H3 H4 H5 C6 H7 H8 H9 C10 N11 N12
O12.23942.55763.63022.55622.57303.86263.86254.27723.53421.25802.2178
O22.23943.86324.27723.86203.53422.55622.55743.63012.57281.25802.2178
H32.55763.86321.76691.75511.07963.74394.13383.41643.31352.68162.0992
H43.63024.27721.76691.76691.07753.41763.41572.28482.67413.26312.0612
H52.55623.86201.75511.76691.07964.13413.74193.41703.31312.68042.0992
C62.57303.53421.07961.07751.07963.31393.31272.67412.62162.38491.4637
H73.86262.55623.74393.41764.13413.31391.75511.76691.07962.68072.0991
H83.86252.55744.13383.41573.74193.31271.75511.76701.07972.68112.0993
H94.27723.63013.41642.28483.41702.67411.76691.76701.07753.26312.0612
C103.53422.57283.31352.67413.31312.62161.07961.07971.07752.38481.4637
N111.25801.25802.68163.26312.68042.38492.68072.68113.26312.38481.3409
N122.21782.21782.09922.06122.09921.46372.09912.09932.06121.46371.3409

picture of Dimethylnitroamine state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
O1 N11 O2 125.761 O1 N11 N12 117.121
O2 N11 N12 117.118 H3 C6 H4 109.988
H3 C6 H5 108.747 H3 C6 N12 110.341
H4 C6 H5 109.990 H4 C6 N12 107.432
H5 C6 N12 110.338 C6 N12 C10 127.151
C6 N12 N11 116.426 H7 C10 H8 108.747
H7 C10 H9 109.988 H7 C10 N12 110.334
H8 C10 H9 109.990 H8 C10 N12 110.344
H9 C10 N12 107.432 C10 N12 N11 116.423
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/3-21G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 O -0.409 -0.502   -0.490
2 O -0.409 -0.502   -0.490
3 H 0.251 0.093   0.158
4 H 0.219 0.092   0.164
5 H 0.251 0.088   0.158
6 C -0.317 -0.092   -0.350
7 H 0.252 0.093   0.158
8 H 0.251 0.088   0.158
9 H 0.219 0.092   0.164
10 C -0.317 -0.092   -0.350
11 N 0.560 0.915   0.813
12 N -0.551 -0.272   -0.093


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -5.384 0.000 0.001 5.384
CHELPG -4.886 0.001 0.249 4.892
AIM        
ESP -5.404 0.000 0.002 5.404


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -37.793 0.001 -0.002
y 0.001 -35.865 -0.001
z -0.002 -0.001 -34.912
Traceless
 xyz
x -2.405 0.001 -0.002
y 0.001 0.488 -0.001
z -0.002 -0.001 1.917
Polar
3z2-r23.834
x2-y2-1.929
xy0.001
xz-0.002
yz-0.001


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 6.336 0.000 0.000
y 0.000 6.703 0.000
z 0.000 0.000 3.467


<r2> (average value of r2) Å2
<r2> 150.193
(<r2>)1/2 12.255