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All results from a given calculation for C2H6N2O (Urea, methyl-)

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-261.548099
Energy at 298.15K-261.556633
Nuclear repulsion energy183.526779
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 3936 3565 54.19      
2 A 3842 3479 51.51      
3 A 3810 3451 49.94      
4 A 3286 2976 20.33      
5 A 3221 2917 55.31      
6 A 3180 2880 35.61      
7 A 1897 1718 514.93      
8 A 1810 1639 118.26      
9 A 1704 1543 25.34      
10 A 1676 1518 6.69      
11 A 1638 1483 45.65      
12 A 1600 1449 6.37      
13 A 1518 1375 328.16      
14 A 1303 1180 3.24      
15 A 1266 1146 0.21      
16 A 1215 1100 42.91      
17 A 1167 1057 37.96      
18 A 941 852 6.72      
19 A 906 820 257.38      
20 A 616 558 9.87      
21 A 615 557 243.23      
22 A 586 530 4.02      
23 A 583 528 15.45      
24 A 451 408 185.60      
25 A 315 285 3.77      
26 A 183 166 1.46      
27 A 117 106 2.98      

Unscaled Zero Point Vibrational Energy (zpe) 21688.7 cm-1
Scaled (by 0.9056) Zero Point Vibrational Energy (zpe) 19641.3 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
0.33644 0.13906 0.10023

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)
C1 1.882 0.042 0.000
H2 1.996 0.662 0.884
H3 2.683 -0.683 -0.001
H4 1.996 0.664 -0.882
H5 0.616 -1.667 -0.000
N6 0.615 -0.671 -0.000
C7 -0.628 -0.106 0.000
H8 0.161 1.831 -0.000
H9 -1.544 1.693 0.000
N10 -0.649 1.257 -0.000
O11 -1.649 -0.778 0.000

Atom - Atom Distances (Å)
  C1 H2 H3 H4 H5 N6 C7 H8 H9 N10 O11
C11.08531.08041.08532.12721.45442.51452.48263.80352.80823.6255
H21.08531.75041.76592.84812.11352.87352.34883.79182.85214.0179
H31.08041.75041.75032.28952.06843.36083.56134.84933.85624.3333
H41.08531.76591.75032.84852.11342.87302.34683.79072.85074.0176
H52.12722.84812.28952.84850.99601.99553.52713.99423.18612.4332
N61.45442.11352.06842.11340.99601.36482.54253.20142.30562.2664
C72.51452.87353.36082.87301.99551.36482.09112.01911.36361.2224
H82.48262.34883.56132.34683.52712.54252.09111.71030.99233.1747
H93.80353.79184.84933.79073.99423.20142.01911.71030.99532.4729
N102.80822.85213.85622.85073.18612.30561.36360.99230.99532.2674
O113.62554.01794.33334.01762.43322.26641.22243.17472.47292.2674

picture of Urea, methyl- state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 N6 H5 119.299 C1 N6 C7 126.199
H2 C1 H3 107.847 H2 C1 H4 108.887
H2 C1 N6 111.824 H3 C1 H4 107.838
H3 C1 N6 108.471 H4 C1 N6 111.818
H5 N6 C7 114.502 N6 C7 N10 115.347
N6 C7 O11 122.233 C7 N10 H8 124.395
C7 N10 H9 116.865 H8 N10 H9 118.740
N10 C7 O11 122.420
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 C -0.348 -0.013   -0.221
2 H 0.206 0.055   0.111
3 H 0.231 0.101   0.153
4 H 0.206 0.055   0.111
5 H 0.370 0.357   0.357
6 N -0.921 -0.707   -0.642
7 C 1.173 1.066   1.008
8 H 0.356 0.417   0.411
9 H 0.366 0.414   0.416
10 N -0.959 -1.017   -0.994
11 O -0.679 -0.728   -0.711


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  4.139 2.478 0.001 4.824
CHELPG 4.179 2.504 0.001 4.872
AIM        
ESP 4.176 2.503 0.001 4.869


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -31.878 -5.425 -0.002
y -5.425 -25.438 0.001
z -0.002 0.001 -31.619
Traceless
 xyz
x -3.349 -5.425 -0.002
y -5.425 6.311 0.001
z -0.002 0.001 -2.961
Polar
3z2-r2-5.923
x2-y2-6.440
xy-5.425
xz-0.002
yz0.001


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.590 0.227 -0.000
y 0.227 4.816 0.000
z -0.000 0.000 2.483


<r2> (average value of r2) Å2
<r2> 118.485
(<r2>)1/2 10.885