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: PBEPBEultrafine/6-31G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2 1A
Energy calculated at PBEPBEultrafine/6-31G**
 hartrees
Energy at 0K-303.523374
Energy at 298.15K-303.533236
HF Energy-303.523374
Nuclear repulsion energy246.587482
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 PBEPBEultrafine/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 3533 3484 6.97      
2 A 3102 3060 2.61      
3 A 3032 2991 4.28      
4 A 2956 2915 0.47      
5 A 1750 1726 191.16      
6 A 1493 1473 20.97      
7 A 1461 1441 0.00      
8 A 1440 1420 4.26      
9 A 1391 1372 17.29      
10 A 1175 1159 0.49      
11 A 1145 1129 3.24      
12 A 1111 1096 5.70      
13 A 903 891 2.49      
14 A 513 506 28.81      
15 A 399 394 46.39      
16 A 229 226 1.96      
17 A 172 169 0.01      
18 A 90 89 0.76      
19 B 3528 3480 7.02      
20 B 3102 3059 0.35      
21 B 3032 2991 69.27      
22 B 2954 2914 156.89      
23 B 1532 1511 257.52      
24 B 1467 1447 20.83      
25 B 1453 1433 129.18      
26 B 1397 1378 3.56      
27 B 1216 1199 237.98      
28 B 1123 1107 8.84      
29 B 1105 1089 31.79      
30 B 1042 1028 0.58      
31 B 723 713 2.42      
32 B 700 690 28.39      
33 B 487 481 131.42      
34 B 334 329 52.76      
35 B 123 121 9.80      
36 B 90 89 0.94      

Unscaled Zero Point Vibrational Energy (zpe) 25651.1 cm-1
Scaled (by 0.9863) Zero Point Vibrational Energy (zpe) 25299.7 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 PBEPBEultrafine/6-31G**
ABC
0.32051 0.07149 0.05997

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

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.106
O2 0.000 0.000 1.341
N3 0.000 1.165 -0.659
N4 0.000 -1.165 -0.659
C5 -0.237 2.441 -0.002
C6 0.237 -2.441 -0.002
H7 -0.342 1.080 -1.614
H8 0.342 -1.080 -1.614
H9 0.327 3.242 -0.507
H10 -0.327 -3.242 -0.507
H11 0.116 2.344 1.034
H12 -0.116 -2.344 1.034
H13 -1.307 2.722 0.026
H14 1.307 -2.722 0.026

Atom - Atom Distances (Å)
  C1 O2 N3 N4 C5 C6 H7 H8 H9 H10 H11 H12 H13 H14
C11.23581.39341.39342.45472.45472.05922.05923.31523.31522.52352.52353.02043.0204
O21.23582.31462.31462.79632.79633.16503.16503.74593.74592.36662.36663.29353.2935
N31.39342.31462.33021.45423.67291.01812.46412.10774.42152.06573.89742.14494.1576
N41.39342.31462.33023.67291.45422.46411.01814.42152.10773.89742.06574.15762.1449
C52.45472.79631.45423.67294.90472.11163.91561.10205.70561.09874.89701.10685.3887
C62.45472.79633.67291.45424.90473.91562.11165.70561.10204.89701.09875.38871.1068
H72.05923.16501.01812.46412.11163.91562.26662.51884.46162.96914.33432.51284.4571
H82.05923.16502.46411.01813.91562.11162.26664.46162.51884.33432.96914.45712.5128
H93.31523.74592.10774.42151.10205.70562.51884.46166.51631.79595.81091.79596.0669
H103.31523.74594.42152.10775.70561.10204.46162.51886.51635.81091.79596.06691.7959
H112.52352.36662.06573.89741.09874.89702.96914.33431.79595.81094.69311.78405.3005
H122.52352.36663.89742.06574.89701.09874.33432.96915.81091.79594.69315.30051.7840
H133.02043.29352.14494.15761.10685.38872.51284.45711.79596.06691.78405.30056.0388
H143.02043.29354.15762.14495.38871.10684.45712.51286.06691.79595.30051.78406.0388

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 119.078 C1 N3 H7 116.423
C1 N4 C6 119.078 C1 N4 H8 116.423
O2 C1 N3 123.262 O2 C1 N4 123.262
N3 C1 N4 113.477 N3 C5 H9 110.327
N3 C5 H11 107.208 N3 C5 H13 113.061
N4 C6 H10 110.327 N4 C6 H12 107.208
N4 C6 H14 113.061 C5 N3 H7 116.214
C6 N4 H8 116.214 H9 C5 H11 109.388
H9 C5 H13 108.797 H10 C6 H12 109.388
H10 C6 H14 108.797 H11 C5 H13 107.977
H12 C6 H14 107.977
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBEultrafine/6-31G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.693      
2 O -0.502      
3 N -0.531      
4 N -0.531      
5 C -0.235      
6 C -0.235      
7 H 0.251      
8 H 0.251      
9 H 0.123      
10 H 0.123      
11 H 0.171      
12 H 0.171      
13 H 0.125      
14 H 0.125      


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 -3.516 3.516
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -37.346 -1.802 0.000
y -1.802 -30.547 0.000
z 0.000 0.000 -36.180
Traceless
 xyz
x -3.983 -1.802 0.000
y -1.802 6.216 0.000
z 0.000 0.000 -2.233
Polar
3z2-r2-4.466
x2-y2-6.799
xy-1.802
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.168 -0.524 0.000
y -0.524 10.440 0.000
z 0.000 0.000 7.316


<r2> (average value of r2) Å2
<r2> 194.282
(<r2>)1/2 13.939