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: B1B95/3-21G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A
Energy calculated at B1B95/3-21G
 hartrees
Energy at 0K-302.070422
Energy at 298.15K-302.080773
Nuclear repulsion energy253.179429
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 B1B95/3-21G
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 3723 3562 36.61      
2 A 3596 3440 32.76      
3 A 3178 3041 0.40      
4 A 3139 3003 13.13      
5 A 3092 2958 39.32      
6 A 3085 2952 35.59      
7 A 3039 2908 59.88      
8 A 3010 2880 57.11      
9 A 1756 1680 286.99      
10 A 1680 1608 114.48      
11 A 1586 1517 55.37      
12 A 1575 1506 8.74      
13 A 1565 1497 10.46      
14 A 1559 1492 17.67      
15 A 1510 1445 91.32      
16 A 1458 1395 42.65      
17 A 1429 1367 184.10      
18 A 1303 1247 13.01      
19 A 1290 1234 78.54      
20 A 1181 1130 3.36      
21 A 1141 1092 3.62      
22 A 1106 1058 14.14      
23 A 1087 1040 26.49      
24 A 1034 989 48.50      
25 A 792 758 72.73      
26 A 765 732 2.92      
27 A 604 577 5.73      
28 A 552 528 89.99      
29 A 518 495 47.12      
30 A 450 431 91.17      
31 A 383 367 46.89      
32 A 317 303 46.29      
33 A 197 189 5.83      
34 A 181 173 1.40      
35 A 149 142 1.05      
36 A 91 87 11.96      

Unscaled Zero Point Vibrational Energy (zpe) 26560.3 cm-1
Scaled (by 0.9567) Zero Point Vibrational Energy (zpe) 25410.3 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 B1B95/3-21G
ABC
0.16531 0.11940 0.07142

See section I.F.4 to change rotational constant units
Geometric Data calculated at B1B95/3-21G

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
H1 2.552 0.759 0.023
O2 1.235 -1.355 -0.071
C3 0.763 -0.208 -0.010
N4 -0.595 0.046 -0.004
H5 1.214 1.828 0.305
N6 1.556 0.915 0.049
H7 -2.190 -1.099 -0.781
H8 -2.074 -1.097 1.000
H9 -0.865 -1.985 0.027
C10 -1.497 -1.097 0.068
H11 -1.152 1.897 0.910
H12 -2.186 1.322 -0.409
H13 -0.598 1.998 -0.787
C14 -1.151 1.388 -0.065

Atom - Atom Distances (Å)
  H1 O2 C3 N4 H5 N6 H7 H8 H9 C10 H11 H12 H13 C14
H12.49292.03423.22741.73551.00895.15665.07954.38334.45483.97544.79083.48013.7573
O22.49291.24172.30563.20552.29633.50733.48732.19512.74764.15174.35703.88743.6354
C32.03421.24171.38182.10931.37633.17973.13982.41082.43002.99103.34612.70562.4928
N43.22742.30561.38182.55872.32082.11152.12132.04901.45772.13842.07942.10311.4539
H51.73553.20552.10932.55871.00764.61944.45574.35263.99582.44373.51082.12192.4342
N61.00892.29631.37632.32081.00764.33354.25793.77853.65673.00653.79132.55072.7501
H75.15663.50733.17972.11154.61944.33351.78441.78671.09563.59352.44973.48232.7888
H85.07953.48733.13982.12134.45574.25791.78441.78791.09633.13392.80183.86622.8563
H94.38332.19512.41082.04904.35263.77851.78671.78791.09043.99183.58784.07393.3863
C104.45482.74762.43001.45773.99583.65671.09561.09631.09043.12962.56043.33432.5125
H113.97544.15172.99102.13842.44373.00653.59353.13393.99183.12961.77171.78781.0996
H124.79084.35703.34612.07943.51083.79132.44972.80183.58782.56041.77171.76651.0924
H133.48013.88742.70562.10312.12192.55073.48233.86624.07393.33431.78781.76651.0953
C143.75733.63542.49281.45392.43422.75012.78882.85633.38632.51251.09961.09241.0953

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 116.191 H1 N6 H5 118.775
O2 C3 N4 122.913 O2 C3 N6 122.501
C3 N4 C10 117.670 C3 N4 C14 123.039
C3 N6 H5 123.719 N4 C3 N6 114.585
N4 C10 H7 110.782 N4 C10 H8 111.532
N4 C10 H9 106.159 N4 C14 H11 113.009
N4 C14 H12 108.660 N4 C14 H13 110.387
H7 C10 H8 108.996 H7 C10 H9 109.636
H8 C10 H9 109.695 C10 N4 C14 119.291
H11 C14 H12 107.846 H11 C14 H13 109.078
H12 C14 H13 107.693
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B1B95/3-21G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 H 0.334      
2 O -0.544      
3 C 0.899      
4 N -0.682      
5 H 0.323      
6 N -0.811      
7 H 0.203      
8 H 0.203      
9 H 0.261      
10 C -0.419      
11 H 0.207      
12 H 0.231      
13 H 0.217      
14 C -0.423      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -1.445 3.769 0.463 4.063
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -32.235 5.382 0.881
y 5.382 -35.633 0.394
z 0.881 0.394 -37.544
Traceless
 xyz
x 4.354 5.382 0.881
y 5.382 -0.744 0.394
z 0.881 0.394 -3.610
Polar
3z2-r2-7.220
x2-y23.398
xy5.382
xz0.881
yz0.394


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 7.779 0.049 -0.098
y 0.049 7.215 0.179
z -0.098 0.179 4.078


<r2> (average value of r2) Å2
<r2> 165.406
(<r2>)1/2 12.861