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 NH(CH3)CONH(CH3) (Urea, N,N'-dimethyl-)

using model chemistry: HF/6-311G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2 1A
Energy calculated at HF/6-311G**
 hartrees
Energy at 0K-302.125992
Energy at 298.15K-302.136451
HF Energy-302.125992
Nuclear repulsion energy250.261618
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/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 3852 3500 35.14      
2 A 3291 2990 21.20      
3 A 3235 2939 21.21      
4 A 3166 2876 6.21      
5 A 1938 1761 367.72      
6 A 1661 1509 33.67      
7 A 1621 1472 1.01      
8 A 1610 1463 0.95      
9 A 1577 1433 3.62      
10 A 1306 1187 0.10      
11 A 1266 1150 1.84      
12 A 1240 1127 7.20      
13 A 1000 908 1.95      
14 A 563 511 67.63      
15 A 449 408 64.63      
16 A 241 219 4.44      
17 A 209 190 0.03      
18 A 121 110 0.30      
19 B 3847 3495 10.96      
20 B 3291 2990 12.77      
21 B 3235 2939 81.52      
22 B 3165 2875 128.32      
23 B 1714 1557 470.54      
24 B 1631 1482 2.14      
25 B 1609 1462 46.73      
26 B 1582 1437 6.76      
27 B 1372 1247 281.36      
28 B 1259 1144 23.50      
29 B 1243 1130 10.94      
30 B 1107 1005 4.13      
31 B 866 786 51.21      
32 B 791 719 20.43      
33 B 529 481 119.80      
34 B 347 315 45.81      
35 B 133 121 0.35      
36 B 129 117 9.76      

Unscaled Zero Point Vibrational Energy (zpe) 28097.8 cm-1
Scaled (by 0.9085) Zero Point Vibrational Energy (zpe) 25526.8 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 HF/6-311G**
ABC
0.33803 0.07288 0.06151

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

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.100
O2 0.000 0.000 1.296
N3 0.000 1.149 -0.648
N4 0.000 -1.149 -0.648
C5 -0.219 2.421 0.012
C6 0.219 -2.421 0.012
H7 -0.376 1.065 -1.564
H8 0.376 -1.065 -1.564
H9 0.006 3.217 -0.688
H10 -0.006 -3.217 -0.688
H11 0.447 2.503 0.858
H12 -0.447 -2.503 0.858
H13 -1.239 2.538 0.369
H14 1.239 -2.538 0.369

Atom - Atom Distances (Å)
  C1 O2 N3 N4 C5 C6 H7 H8 H9 H10 H11 H12 H13 H14
C11.19561.37071.37072.43232.43232.01152.01153.31183.31182.65332.65332.83662.8366
O21.19562.25762.25762.74882.74883.07493.07493.77913.77912.58002.58002.97212.9721
N31.37072.25762.29751.44963.63670.99402.42562.06844.36572.07423.97542.12064.0196
N41.37072.25762.29753.63671.44962.42560.99404.36572.06843.97542.07424.01962.1206
C52.43232.74881.44963.63674.86142.08493.87201.08345.68491.07975.00131.08715.1805
C62.43232.74883.63671.44964.86143.87202.08495.68491.08345.00131.07975.18051.0871
H72.01153.07490.99402.42562.08493.87202.25952.35414.38662.93474.31372.57844.3960
H82.01153.07492.42560.99403.87202.08492.25954.38662.35414.31372.93474.39602.5784
H93.31183.77912.06844.36571.08345.68492.35414.38666.43351.75925.94241.76815.9791
H103.31183.77914.36572.06845.68491.08344.38662.35416.43355.94241.75925.97911.7681
H112.65332.58002.07423.97541.07975.00132.93474.31371.75925.94245.08531.75595.1259
H122.65332.58003.97542.07425.00131.07974.31372.93475.94241.75925.08535.12591.7559
H132.83662.97212.12064.01961.08715.18052.57844.39601.76815.97911.75595.12595.6478
H142.83662.97214.01962.12065.18051.08714.39602.57845.97911.76815.12591.75595.6478

picture of Urea, N,N'-dimethyl- state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 N3 C5 119.149 C1 N3 H7 115.641
C1 N4 C6 119.149 C1 N4 H8 115.641
O2 C1 N3 123.063 O2 C1 N4 123.063
N3 C1 N4 113.874 N3 C5 H9 108.626
N3 C5 H11 109.305 N3 C5 H13 112.648
N4 C6 H10 108.626 N4 C6 H12 109.305
N4 C6 H14 112.648 C5 N3 H7 115.866
C6 N4 H8 115.866 H9 C5 H11 108.832
H9 C5 H13 109.100 H10 C6 H12 108.832
H10 C6 H14 109.100 H11 C5 H13 108.265
H12 C6 H14 108.265
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/6-311G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.733      
2 O -0.528      
3 N -0.543      
4 N -0.543      
5 C -0.071      
6 C -0.071      
7 H 0.212      
8 H 0.212      
9 H 0.086      
10 H 0.086      
11 H 0.121      
12 H 0.121      
13 H 0.092      
14 H 0.092      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.000 0.000 -3.798 3.798
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -37.357 -1.990 0.000
y -1.990 -30.127 0.000
z 0.000 0.000 -37.664
Traceless
 xyz
x -3.461 -1.990 0.000
y -1.990 7.384 0.000
z 0.000 0.000 -3.922
Polar
3z2-r2-7.845
x2-y2-7.230
xy-1.990
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.224 -0.329 0.000
y -0.329 8.367 0.000
z 0.000 0.000 6.899


<r2> (average value of r2) Å2
<r2> 190.344
(<r2>)1/2 13.797