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: CCD/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 CCD/6-31G*
 hartrees
Energy at 0K-302.961835
Energy at 298.15K-302.972092
HF Energy-302.039687
Nuclear repulsion energy248.153888
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 CCD/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 3628 3434 20.90      
2 A 3206 3034 11.24      
3 A 3157 2988 10.81      
4 A 3076 2911 4.41      
5 A 1865 1765 247.39      
6 A 1572 1488 16.57      
7 A 1544 1461 0.25      
8 A 1528 1446 5.39      
9 A 1499 1419 3.54      
10 A 1238 1172 0.08      
11 A 1213 1148 1.19      
12 A 1173 1110 6.99      
13 A 955 904 0.34      
14 A 581 550 137.58      
15 A 464 439 37.52      
16 A 231 218 3.95      
17 A 202 191 0.18      
18 A 116 109 0.38      
19 B 3626 3432 12.15      
20 B 3205 3034 7.95      
21 B 3157 2988 47.34      
22 B 3075 2911 86.64      
23 B 1618 1531 410.92      
24 B 1559 1476 3.88      
25 B 1539 1457 53.69      
26 B 1502 1422 6.63      
27 B 1316 1246 194.89      
28 B 1190 1126 11.90      
29 B 1175 1112 20.43      
30 B 1081 1023 1.08      
31 B 780 738 60.94      
32 B 757 716 16.38      
33 B 517 489 107.74      
34 B 328 311 46.01      
35 B 128 121 7.51      
36 B 126 119 0.76      

Unscaled Zero Point Vibrational Energy (zpe) 26961.6 cm-1
Scaled (by 0.9465) Zero Point Vibrational Energy (zpe) 25519.1 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 CCD/6-31G*
ABC
0.32595 0.07269 0.06106

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

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.090
O2 0.000 0.000 1.312
N3 0.000 1.159 -0.671
N4 0.000 -1.159 -0.671
C5 -0.246 2.417 0.023
C6 0.246 -2.417 0.023
H7 -0.458 1.070 -1.570
H8 0.458 -1.070 -1.570
H9 -0.068 3.240 -0.676
H10 0.068 -3.240 -0.676
H11 0.455 2.500 0.857
H12 -0.455 -2.500 0.857
H13 -1.266 2.492 0.424
H14 1.266 -2.492 0.424

Atom - Atom Distances (Å)
  C1 O2 N3 N4 C5 C6 H7 H8 H9 H10 H11 H12 H13 H14
C11.22181.38641.38642.43042.43042.02772.02773.32963.32962.65362.65362.81472.8147
O21.22182.29672.29672.75012.75013.10843.10843.80153.80152.58112.58112.93282.9328
N31.38642.29672.31751.45803.65091.01332.44642.08194.39892.08263.99042.13934.0158
N41.38642.29672.31753.65091.45802.44641.01334.39892.08193.99042.08264.01582.1393
C52.43042.75011.45803.65094.85902.09773.89771.09415.70831.09144.99111.09845.1518
C62.43042.75013.65091.45804.85903.89772.09775.70831.09414.99111.09145.15181.0984
H72.02773.10841.01332.44642.09773.89772.32762.37944.43242.96094.31612.57854.4308
H82.02773.10842.44641.01333.89772.09772.32764.43242.37944.31612.96094.43082.5785
H93.32963.80152.08194.39891.09415.70832.37944.43246.48061.78005.95281.78975.9863
H103.32963.80154.39892.08195.70831.09414.43242.37946.48065.95281.78005.98631.7897
H112.65362.58112.08263.99041.09144.99112.96094.31611.78005.95285.08111.77415.0754
H122.65362.58113.99042.08264.99111.09144.31612.96095.95281.78005.08115.07541.7741
H132.81472.93282.13934.01581.09845.15182.57854.43081.78975.98631.77415.07545.5898
H142.81472.93284.01582.13935.15181.09844.43082.57855.98631.78975.07541.77415.5898

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 117.381 C1 N3 H7 114.439
C1 N4 C6 117.381 C1 N4 H8 114.439
O2 C1 N3 123.300 O2 C1 N4 123.300
N3 C1 N4 113.400 N3 C5 H9 108.489
N3 C5 H11 108.704 N3 C5 H13 112.869
N4 C6 H10 108.489 N4 C6 H12 108.704
N4 C6 H14 112.869 C5 N3 H7 114.977
C6 N4 H8 114.977 H9 C5 H11 109.066
H9 C5 H13 109.431 H10 C6 H12 109.066
H10 C6 H14 109.431 H11 C5 H13 108.221
H12 C6 H14 108.221
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability