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/TZVP

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/TZVP
 hartrees
Energy at 0K-303.169686
Energy at 298.15K-303.180092
HF Energy-302.147284
Nuclear repulsion energy248.892930
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/TZVP
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 3665 3474 23.86      
2 A 3194 3028 14.70      
3 A 3152 2988 9.57      
4 A 3071 2912 5.33      
5 A 1837 1742 299.74      
6 A 1558 1477 18.13      
7 A 1527 1447 0.60      
8 A 1514 1436 7.76      
9 A 1497 1419 2.23      
10 A 1238 1173 0.01      
11 A 1206 1144 0.02      
12 A 1176 1115 8.24      
13 A 952 903 0.45      
14 A 591 561 142.20      
15 A 471 446 23.57      
16 A 230 218 3.66      
17 A 204 194 1.16      
18 A 133 126 0.78      
19 B 3662 3472 10.96      
20 B 3194 3028 8.06      
21 B 3152 2988 48.77      
22 B 3071 2911 91.70      
23 B 1597 1514 356.88      
24 B 1542 1462 2.13      
25 B 1519 1440 54.18      
26 B 1501 1423 6.12      
27 B 1300 1233 222.87      
28 B 1191 1129 35.21      
29 B 1180 1119 4.38      
30 B 1066 1011 1.73      
31 B 788 747 51.96      
32 B 760 721 11.90      
33 B 536 508 95.41      
34 B 331 314 36.94      
35 B 154 146 0.73      
36 B 124 117 6.42      

Unscaled Zero Point Vibrational Energy (zpe) 26941.8 cm-1
Scaled (by 0.948) Zero Point Vibrational Energy (zpe) 25540.8 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/TZVP
ABC
0.32887 0.07294 0.06136

See section I.F.4 to change rotational constant units
Geometric Data calculated at CCD/TZVP

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.093
O2 0.000 0.000 1.306
N3 0.000 1.157 -0.666
N4 0.000 -1.157 -0.666
C5 -0.281 2.409 0.022
C6 0.281 -2.409 0.022
H7 -0.450 1.060 -1.562
H8 0.450 -1.060 -1.562
H9 -0.144 3.229 -0.683
H10 0.144 -3.229 -0.683
H11 0.420 2.529 0.844
H12 -0.420 -2.529 0.844
H13 -1.295 2.446 0.429
H14 1.295 -2.446 0.429

Atom - Atom Distances (Å)
  C1 O2 N3 N4 C5 C6 H7 H8 H9 H10 H11 H12 H13 H14
C11.21251.38421.38422.42672.42672.01642.01643.32373.32372.67152.67152.78852.7885
O21.21252.28652.28652.74452.74453.09023.09023.79463.79462.60542.60542.90362.9036
N31.38422.28652.31431.45613.64301.00712.43322.07664.38822.08304.00572.13083.9829
N41.38422.28652.31433.64301.45612.43321.00714.38822.07664.00572.08303.98292.1308
C52.42672.74451.45613.64304.85122.08743.88311.08935.69761.08715.00841.09355.1214
C62.42672.74453.64301.45614.85123.88312.08745.69761.08935.00841.08715.12141.0935
H72.01643.09021.00712.43322.08743.88312.30332.36014.41792.95004.32082.56924.3939
H82.01643.09022.43321.00713.88312.08742.30334.41792.36014.32082.95004.39392.5692
H93.32373.79462.07664.38821.08935.69762.36014.41796.46371.77105.96321.78165.9593
H103.32373.79464.38822.07665.69761.08934.41792.36016.46375.96321.77105.95931.7816
H112.67152.60542.08304.00571.08715.00842.95004.32081.77105.96325.12811.76705.0690
H122.67152.60544.00572.08305.00841.08714.32082.95005.96321.77105.12815.06901.7670
H132.78852.90362.13083.98291.09355.12142.56924.39391.78165.95931.76705.06905.5363
H142.78852.90363.98292.13085.12141.09354.39392.56925.95931.78165.06901.76705.5363

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 117.358 C1 N3 H7 114.037
C1 N4 C6 117.358 C1 N4 H8 114.037
O2 C1 N3 123.282 O2 C1 N4 123.282
N3 C1 N4 113.435 N3 C5 H9 108.476
N3 C5 H11 109.116 N3 C5 H13 112.605
N4 C6 H10 108.476 N4 C6 H12 109.116
N4 C6 H14 112.605 C5 N3 H7 114.634
C6 N4 H8 114.634 H9 C5 H11 108.923
H9 C5 H13 109.414 H10 C6 H12 108.923
H10 C6 H14 109.414 H11 C5 H13 108.249
H12 C6 H14 108.249
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability