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: B2PLYP/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 B2PLYP/6-31G*
 hartrees
Energy at 0K-303.548919
Energy at 298.15K-303.559010
HF Energy-303.255829
Nuclear repulsion energy247.875528
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 B2PLYP/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 3615 3431 14.19      
2 A 3212 3048 9.59      
3 A 3154 2993 10.16      
4 A 3072 2916 4.30      
5 A 1804 1712 208.42      
6 A 1570 1490 14.56      
7 A 1542 1464 0.19      
8 A 1512 1435 7.72      
9 A 1488 1412 6.55      
10 A 1220 1158 0.00      
11 A 1197 1136 1.00      
12 A 1165 1106 7.91      
13 A 937 890 0.57      
14 A 560 531 94.32      
15 A 448 426 39.29      
16 A 229 217 3.16      
17 A 193 183 0.10      
18 A 93 88 0.26      
19 B 3612 3428 9.43      
20 B 3211 3048 5.48      
21 B 3154 2994 55.53      
22 B 3071 2915 114.22      
23 B 1596 1515 290.54      
24 B 1554 1475 18.26      
25 B 1534 1456 104.14      
26 B 1491 1415 13.29      
27 B 1286 1221 231.44      
28 B 1180 1120 28.23      
29 B 1165 1105 11.46      
30 B 1064 1010 1.52      
31 B 760 722 38.76      
32 B 744 706 23.47      
33 B 512 486 116.69      
34 B 328 311 44.73      
35 B 125 119 8.28      
36 B 99 94 0.41      

Unscaled Zero Point Vibrational Energy (zpe) 26746.9 cm-1
Scaled (by 0.9492) Zero Point Vibrational Energy (zpe) 25388.2 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 B2PLYP/6-31G*
ABC
0.32489 0.07238 0.06077

See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP/6-31G*

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.095
O2 0.000 0.000 1.322
N3 0.000 1.160 -0.666
N4 0.000 -1.160 -0.666
C5 -0.241 2.424 0.015
C6 0.241 -2.424 0.015
H7 -0.418 1.075 -1.583
H8 0.418 -1.075 -1.583
H9 0.038 3.243 -0.650
H10 -0.038 -3.243 -0.650
H11 0.383 2.458 0.907
H12 -0.383 -2.458 0.907
H13 -1.285 2.550 0.326
H14 1.285 -2.550 0.326

Atom - Atom Distances (Å)
  C1 O2 N3 N4 C5 C6 H7 H8 H9 H10 H11 H12 H13 H14
C11.22691.38731.38732.43712.43712.03602.03603.32743.32742.61712.61712.86502.8650
O21.22692.30132.30132.76392.76393.12533.12533.79533.79532.52232.52233.02433.0243
N31.38732.30132.32081.45553.65631.01152.45242.08274.40332.07463.96422.13684.0501
N41.38732.30132.32083.65631.45552.45241.01154.40332.08273.96422.07464.05012.1368
C52.43712.76391.45553.65634.87162.09883.90301.09155.70911.08854.96491.09655.2121
C62.43712.76393.65631.45554.87163.90302.09885.70911.09154.96491.08855.21211.0965
H72.03603.12531.01152.45242.09883.90302.30732.40324.43392.95864.32282.56344.4371
H82.03603.12532.45241.01153.90302.09882.30734.43392.40324.32282.95864.43712.5634
H93.32743.79532.08274.40331.09155.70912.40324.43396.48581.77735.92481.78386.0055
H103.32743.79534.40332.08275.70911.09154.43392.40326.48585.92481.77736.00551.7838
H112.61712.52232.07463.96421.08854.96492.95864.32281.77735.92484.97591.76855.1222
H122.61712.52233.96422.07464.96491.08854.32282.95865.92481.77734.97595.12221.7685
H132.86503.02432.13684.05011.09655.21212.56344.43711.78386.00551.76855.12225.7114
H142.86503.02434.05012.13685.21211.09654.43712.56346.00551.78385.12221.76855.7114

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 118.004 C1 N3 H7 115.256
C1 N4 C6 118.004 C1 N4 H8 115.256
O2 C1 N3 123.238 O2 C1 N4 123.238
N3 C1 N4 113.525 N3 C5 H9 108.875
N3 C5 H11 108.414 N3 C5 H13 112.965
N4 C6 H10 108.875 N4 C6 H12 108.414
N4 C6 H14 112.965 C5 N3 H7 115.405
C6 N4 H8 115.405 H9 C5 H11 109.225
H9 C5 H13 109.230 H10 C6 H12 109.225
H10 C6 H14 109.230 H11 C5 H13 108.072
H12 C6 H14 108.072
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B2PLYP/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.754      
2 O -0.529      
3 N -0.646      
4 N -0.646      
5 C -0.306      
6 C -0.306      
7 H 0.329      
8 H 0.329      
9 H 0.154      
10 H 0.154      
11 H 0.198      
12 H 0.198      
13 H 0.158      
14 H 0.158      


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 -3.490 3.490
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -37.258 -2.116 0.000
y -2.116 -30.416 0.000
z 0.000 0.000 -36.946
Traceless
 xyz
x -3.577 -2.116 0.000
y -2.116 6.686 0.000
z 0.000 0.000 -3.109
Polar
3z2-r2-6.218
x2-y2-6.842
xy-2.116
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.934 -0.428 0.000
y -0.428 9.108 0.000
z 0.000 0.000 7.072


<r2> (average value of r2) Å2
<r2> 192.162
(<r2>)1/2 13.862