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 C2H6N2O (Urea, methyl-)

using model chemistry: wB97X-D/6-311G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A
Energy calculated at wB97X-D/6-311G**
 hartrees
Energy at 0K-264.565828
Energy at 298.15K-264.574016
HF Energy-264.565828
Nuclear repulsion energy183.226465
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 wB97X-D/6-311G**
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 3743 3580 33.24      
2 A 3691 3531 40.51      
3 A 3626 3469 23.38      
4 A 3153 3016 17.24      
5 A 3077 2944 40.01      
6 A 3024 2893 47.97      
7 A 1842 1762 514.27      
8 A 1646 1575 156.03      
9 A 1534 1468 54.78      
10 A 1503 1438 73.92      
11 A 1496 1431 19.33      
12 A 1471 1407 24.17      
13 A 1421 1359 117.39      
14 A 1221 1168 5.55      
15 A 1162 1112 14.59      
16 A 1153 1102 17.21      
17 A 1094 1047 30.59      
18 A 906 867 5.20      
19 A 795 760 54.02      
20 A 604 578 32.33      
21 A 561 537 75.70      
22 A 536 512 76.15      
23 A 484 463 27.76      
24 A 385 368 150.58      
25 A 292 279 2.95      
26 A 162 155 2.19      
27 A 116 111 6.80      

Unscaled Zero Point Vibrational Energy (zpe) 20350.1 cm-1
Scaled (by 0.9565) Zero Point Vibrational Energy (zpe) 19464.8 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 wB97X-D/6-311G**
ABC
0.33017 0.13991 0.10088

See section I.F.4 to change rotational constant units
Geometric Data calculated at wB97X-D/6-311G**

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -1.867 0.058 0.096
H2 -2.073 0.816 -0.668
H3 -2.692 -0.654 0.065
H4 -1.859 0.545 1.077
H5 -0.631 -1.649 -0.051
N6 -0.634 -0.652 -0.183
C7 0.620 -0.115 -0.020
H8 -0.026 1.790 -0.462
H9 1.607 1.622 -0.051
N10 0.668 1.267 0.047
O11 1.615 -0.805 0.073

Atom - Atom Distances (Å)
  C1 H2 H3 H4 H5 N6 C7 H8 H9 N10 O11
C11.09511.08971.09532.11311.44982.49622.58843.81252.80983.5875
H21.09511.75521.77842.92172.11152.92202.27573.81672.86854.0957
H31.08971.75521.77592.29122.07213.35643.65444.86493.87064.3089
H41.09531.77841.77592.75582.12582.79002.69773.80062.82343.8596
H52.11312.92172.29122.75581.00631.98033.51643.96343.19472.4025
N61.44982.11152.07212.12581.00631.37432.53193.19512.33092.2688
C72.49622.92203.35642.79001.98031.37432.05981.99751.38461.2142
H82.58842.27573.65442.69773.51642.53192.05981.69231.00753.1171
H93.81253.81674.86493.80063.96343.19511.99751.69231.00772.4303
N102.80982.86853.87062.82343.19472.33091.38461.00751.00772.2785
O113.58754.09574.30893.85962.40252.26881.21423.11712.43032.2785

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 117.576 C1 N6 C7 124.205
H2 C1 H3 106.905 H2 C1 H4 108.566
H2 C1 N6 111.373 H3 C1 H4 108.735
H3 C1 N6 108.536 H4 C1 N6 112.541
H5 N6 C7 111.648 N6 C7 N10 115.314
N6 C7 O11 122.316 C7 N10 H8 118.013
C7 N10 H9 112.267 H8 N10 H9 114.227
N10 C7 O11 122.366
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at wB97X-D/6-311G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.213      
2 H 0.118      
3 H 0.132      
4 H 0.136      
5 H 0.248      
6 N -0.449      
7 C 0.456      
8 H 0.221      
9 H 0.241      
10 N -0.488      
11 O -0.402      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -3.527 2.014 -0.593 4.105
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -31.202 5.318 -0.813
y 5.318 -26.084 -1.899
z -0.813 -1.899 -31.423
Traceless
 xyz
x -2.449 5.318 -0.813
y 5.318 5.229 -1.899
z -0.813 -1.899 -2.780
Polar
3z2-r2-5.560
x2-y2-5.118
xy5.318
xz-0.813
yz-1.899


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 7.103 -0.124 0.114
y -0.124 6.079 -0.056
z 0.114 -0.056 3.956


<r2> (average value of r2) Å2
<r2> 118.169
(<r2>)1/2 10.871