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 N(CH3)2CONH2 (Urea, N,N-dimethyl-)

using model chemistry: B3PW91/6-31G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A
Energy calculated at B3PW91/6-31G*
 hartrees
Energy at 0K-303.764897
Energy at 298.15K-303.775201
Nuclear repulsion energy253.732498
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 B3PW91/6-31G*
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 3695 3535 26.88      
2 A 3584 3429 19.54      
3 A 3198 3059 0.48      
4 A 3151 3015 10.59      
5 A 3100 2965 21.34      
6 A 3085 2951 51.89      
7 A 3034 2903 71.30      
8 A 3010 2879 66.45      
9 A 1811 1733 375.22      
10 A 1661 1589 137.99      
11 A 1565 1497 70.64      
12 A 1533 1467 14.77      
13 A 1524 1458 13.64      
14 A 1522 1456 16.80      
15 A 1499 1434 74.27      
16 A 1452 1389 126.36      
17 A 1447 1384 15.04      
18 A 1325 1268 30.63      
19 A 1288 1232 50.18      
20 A 1181 1129 2.62      
21 A 1140 1091 3.80      
22 A 1119 1071 55.70      
23 A 1096 1048 7.73      
24 A 1045 999 36.68      
25 A 785 751 26.52      
26 A 783 749 62.57      
27 A 612 586 124.98      
28 A 597 571 71.74      
29 A 515 493 7.81      
30 A 448 429 32.23      
31 A 391 374 13.27      
32 A 316 302 9.82      
33 A 198 189 6.54      
34 A 158 151 1.44      
35 A 135 129 5.16      
36 A 96 92 2.37      

Unscaled Zero Point Vibrational Energy (zpe) 26547.0 cm-1
Scaled (by 0.9567) Zero Point Vibrational Energy (zpe) 25397.5 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 B3PW91/6-31G*
ABC
0.16912 0.11775 0.07171

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3PW91/6-31G*

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
H1 2.540 0.663 0.147
O2 1.239 -1.335 -0.079
C3 0.761 -0.209 -0.016
N4 -0.592 0.041 -0.016
H5 1.285 1.701 0.586
N6 1.573 0.925 0.006
H7 -2.179 -1.108 -0.781
H8 -2.115 -1.007 0.997
H9 -0.916 -1.993 0.113
C10 -1.505 -1.076 0.086
H11 -1.347 1.802 0.920
H12 -2.120 1.325 -0.602
H13 -0.505 2.038 -0.641
C14 -1.160 1.368 -0.076

Atom - Atom Distances (Å)
  H1 O2 C3 N4 H5 N6 H7 H8 H9 C10 H11 H12 H13 C14
H12.39501.98733.19671.68641.01125.12475.01814.35834.40304.12294.76533.43223.7726
O22.39501.22522.29083.10842.28593.49633.53772.26082.76064.18634.31583.83823.6141
C31.98731.22521.37562.06951.39423.16833.15242.45202.42853.05973.31562.65322.4860
N43.19672.29081.37562.57682.33832.10352.10842.06351.44642.13252.08002.09411.4452
H51.68643.10842.06952.57681.01124.66444.36654.32573.96822.65463.62562.19602.5545
N61.01122.28591.39422.33831.01124.33914.28023.83633.67203.18293.76382.44452.7699
H75.12473.49633.16832.10354.66444.33911.78161.78281.09833.47202.43993.56612.7692
H85.01813.53773.15242.10844.36654.28021.78161.78641.09902.91392.82743.81412.7763
H94.35832.26082.45202.06354.32573.83631.78281.78641.09003.90393.60104.12113.3755
C104.40302.76062.42851.44643.96823.67201.09831.09901.09003.00122.57203.35032.4742
H114.12294.18633.05972.13252.65463.18293.47202.91393.90393.00121.77261.78871.1022
H124.76534.31583.31562.08003.62563.76382.43992.82743.60102.57201.77261.76551.0956
H133.43223.83822.65322.09412.19602.44453.56613.81414.12113.35031.78871.76551.0935
C143.77263.61412.48601.44522.55452.76992.76922.77633.37552.47421.10221.09561.0935

picture of Urea, N,N-dimethyl- state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
H1 N6 C3 110.402 H1 N6 H5 112.994
O2 C3 N4 123.376 O2 C3 N6 121.402
C3 N4 C10 118.731 C3 N4 C14 123.584
C3 N6 H5 117.831 N4 C3 N6 115.170
N4 C10 H7 110.764 N4 C10 H8 111.118
N4 C10 H9 108.067 N4 C14 H11 112.988
N4 C14 H12 109.129 N4 C14 H13 110.390
H7 C10 H8 108.354 H7 C10 H9 109.116
H8 C10 H9 109.395 C10 N4 C14 117.664
H11 C14 H12 107.525 H11 C14 H13 109.106
H12 C14 H13 107.519
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3PW91/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 H 0.358     0.383
2 O -0.538     -0.536
3 C 0.721     0.605
4 N -0.435     -0.033
5 H 0.341     0.352
6 N -0.804     -0.859
7 H 0.170     0.134
8 H 0.167     0.125
9 H 0.229     0.156
10 C -0.376     -0.388
11 H 0.170     0.091
12 H 0.188     0.125
13 H 0.201     0.110
14 C -0.390     -0.266


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -1.694 3.204 1.205 3.819
CHELPG        
AIM        
ESP -1.728 3.208 1.222 3.843


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -32.972 4.598 2.273
y 4.598 -36.915 1.383
z 2.273 1.383 -36.914
Traceless
 xyz
x 3.942 4.598 2.273
y 4.598 -1.972 1.383
z 2.273 1.383 -1.971
Polar
3z2-r2-3.941
x2-y23.942
xy4.598
xz2.273
yz1.383


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


<r2> (average value of r2) Å2
<r2> 165.276
(<r2>)1/2 12.856