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: MP2/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 MP2/TZVP
 hartrees
Energy at 0K-303.137314
Energy at 298.15K-303.147672
HF Energy-302.146358
Nuclear repulsion energy248.605955
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 MP2/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 3644 3454 26.98      
2 A 3217 3049 10.77      
3 A 3173 3008 7.71      
4 A 3083 2922 4.52      
5 A 1788 1695 250.17      
6 A 1549 1469 12.98      
7 A 1519 1439 0.17      
8 A 1493 1416 11.37      
9 A 1483 1406 2.72      
10 A 1225 1161 0.05      
11 A 1197 1134 0.01      
12 A 1165 1105 8.36      
13 A 939 890 0.58      
14 A 596 565 138.45      
15 A 468 443 21.11      
16 A 229 217 3.39      
17 A 201 191 1.12      
18 A 130 123 0.74      
19 B 3641 3452 12.37      
20 B 3217 3049 6.24      
21 B 3173 3008 41.25      
22 B 3082 2922 92.69      
23 B 1573 1491 302.79      
24 B 1534 1454 12.16      
25 B 1511 1432 80.68      
26 B 1487 1410 11.97      
27 B 1279 1213 219.71      
28 B 1182 1120 43.43      
29 B 1167 1106 0.41      
30 B 1060 1005 1.49      
31 B 769 728 52.70      
32 B 750 711 6.87      
33 B 535 507 100.40      
34 B 328 311 35.62      
35 B 149 141 0.77      
36 B 124 117 6.73      

Unscaled Zero Point Vibrational Energy (zpe) 26828.9 cm-1
Scaled (by 0.9479) Zero Point Vibrational Energy (zpe) 25431.1 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 MP2/TZVP
ABC
0.32586 0.07303 0.06132

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/TZVP

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.092
O2 0.000 0.000 1.314
N3 0.000 1.158 -0.670
N4 0.000 -1.158 -0.670
C5 -0.285 2.407 0.022
C6 0.285 -2.407 0.022
H7 -0.450 1.061 -1.567
H8 0.450 -1.061 -1.567
H9 -0.131 3.230 -0.673
H10 0.131 -3.230 -0.673
H11 0.405 2.513 0.854
H12 -0.405 -2.513 0.854
H13 -1.303 2.447 0.415
H14 1.303 -2.447 0.415

Atom - Atom Distances (Å)
  C1 O2 N3 N4 C5 C6 H7 H8 H9 H10 H11 H12 H13 H14
C11.22211.38611.38612.42462.42462.01992.01993.32183.32182.65742.65742.79072.7907
O21.22212.29682.29682.74652.74653.10303.10303.79433.79432.58692.58692.91382.9138
N31.38612.29682.31681.45523.64281.00912.43592.07574.39032.07873.99582.12933.9837
N41.38612.29682.31683.64281.45522.43591.00914.39032.07573.99582.07873.98372.1293
C52.42462.74651.45523.64284.84722.08923.88461.08805.69471.08614.99151.09255.1216
C62.42462.74653.64281.45524.84723.88462.08925.69471.08804.99151.08615.12161.0925
H72.01993.10301.00912.43592.08923.88462.30472.36784.42132.95034.31732.56494.3938
H82.01993.10302.43591.00913.88462.08922.30474.42132.36784.31732.95034.39382.5649
H93.32183.79432.07574.39031.08805.69472.36784.42136.46521.77025.94911.78085.9552
H103.32183.79434.39032.07575.69471.08804.42132.36786.46525.94911.77025.95521.7808
H112.65742.58692.07873.99581.08614.99152.95034.31731.77025.94915.09141.76475.0595
H122.65742.58693.99582.07874.99151.08614.31732.95035.94911.77025.09145.05951.7647
H132.79072.91382.12933.98371.09255.12162.56494.39381.78085.95521.76475.05955.5437
H142.79072.91383.98372.12935.12161.09254.39382.56495.95521.78085.05951.76475.5437

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 117.138 C1 N3 H7 114.064
C1 N4 C6 117.138 C1 N4 H8 114.064
O2 C1 N3 123.308 O2 C1 N4 123.308
N3 C1 N4 113.385 N3 C5 H9 108.547
N3 C5 H11 108.901 N3 C5 H13 112.619
N4 C6 H10 108.547 N4 C6 H12 108.901
N4 C6 H14 112.619 C5 N3 H7 114.737
C6 N4 H8 114.737 H9 C5 H11 109.017
H9 C5 H13 109.503 H10 C6 H12 109.017
H10 C6 H14 109.503 H11 C5 H13 108.196
H12 C6 H14 108.196
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability