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All results from a given calculation for NH(CH3)CONH(CH3) (Urea, N,N'-dimethyl-)

using model chemistry: QCISD/3-21G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2 1A
Energy calculated at QCISD/3-21G
 hartrees
Energy at 0K-301.003869
Energy at 298.15K-301.013590
HF Energy-300.359767
Nuclear repulsion energy245.166183
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 QCISD/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 3588 3478 21.63      
2 A 3134 3038 1.60      
3 A 3054 2960 0.00      
4 A 3012 2920 1.62      
5 A 1708 1655 119.05      
6 A 1599 1550 28.91      
7 A 1588 1539 0.00      
8 A 1530 1483 21.83      
9 A 1477 1431 63.51      
10 A 1203 1166 6.60      
11 A 1179 1142 0.00      
12 A 1167 1131 2.55      
13 A 915 887 5.98      
14 A 504 489 1.90      
15 A 244 237 0.83      
16 A 210 203 0.00      
17 A 167 162 0.00      
18 A 30 29 0.00      
19 B 3581 3470 6.45      
20 B 3134 3037 0.04      
21 B 3054 2960 100.22      
22 B 3011 2918 123.93      
23 B 1610 1561 62.74      
24 B 1589 1540 10.76      
25 B 1550 1503 314.98      
26 B 1491 1445 9.95      
27 B 1252 1214 378.10      
28 B 1186 1149 3.44      
29 B 1179 1143 47.44      
30 B 1023 992 3.17      
31 B 755 732 38.39      
32 B 711 689 7.93      
33 B 474 460 330.41      
34 B 382 371 36.13      
35 B 145 140 4.88      
36 B 104 101 16.09      

Unscaled Zero Point Vibrational Energy (zpe) 26269.6 cm-1
Scaled (by 0.9692) Zero Point Vibrational Energy (zpe) 25460.5 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 QCISD/3-21G
ABC
0.31871 0.07042 0.05898

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

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.091
O2 0.000 0.000 1.345
N3 0.000 1.166 -0.665
N4 0.000 -1.166 -0.665
C5 -0.001 2.478 0.012
C6 0.001 -2.478 0.012
H7 0.001 1.129 -1.677
H8 -0.001 -1.129 -1.677
H9 0.896 3.063 -0.242
H10 -0.896 -3.063 -0.242
H11 -0.001 2.262 1.086
H12 0.001 -2.262 1.086
H13 -0.897 3.063 -0.243
H14 0.897 -3.063 -0.243

Atom - Atom Distances (Å)
  C1 O2 N3 N4 C5 C6 H7 H8 H9 H10 H11 H12 H13 H14
C11.25441.38941.38942.47922.47922.09752.09753.20893.20892.47102.47103.20913.2091
O21.25442.32372.32372.81382.81383.22613.22613.56453.56452.27652.27653.56503.5650
N31.38942.32372.33211.47633.70641.01282.50852.14044.34382.06523.84892.14034.3437
N41.38942.32372.33213.70641.47632.50851.01284.34382.14043.84892.06524.34372.1403
C52.47922.81381.47633.70644.95602.16153.98311.10055.61891.09534.85981.10055.6190
C62.47922.81383.70641.47634.95603.98312.16155.61891.10054.85981.09535.61901.1005
H72.09753.22611.01282.50852.16153.98312.25842.56934.52112.98584.37392.56944.5204
H82.09753.22612.50851.01283.98312.16152.25844.52112.56934.37392.98584.52042.5694
H93.20893.56452.14044.34381.10055.61892.56934.52116.38331.79185.56051.79316.1263
H103.20893.56454.34382.14045.61891.10054.52112.56936.38335.56051.79186.12631.7931
H112.47102.27652.06523.84891.09534.85982.98584.37391.79185.56054.52351.79185.5611
H122.47102.27653.84892.06524.85981.09534.37392.98585.56051.79184.52355.56111.7918
H133.20913.56502.14034.34371.10055.61902.56944.52041.79316.12631.79185.56116.3833
H143.20913.56504.34372.14035.61901.10054.52042.56946.12631.79315.56111.79186.3833

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 119.769 C1 N3 H7 120.856
C1 N4 C6 119.769 C1 N4 H8 120.856
O2 C1 N3 122.940 O2 C1 N4 122.940
N3 C1 N4 114.120 N3 C5 H9 111.498
N3 C5 H11 105.903 N3 C5 H13 111.496
N4 C6 H10 111.498 N4 C6 H12 105.903
N4 C6 H14 111.496 C5 N3 H7 119.375
C6 N4 H8 119.375 H9 C5 H11 109.376
H9 C5 H13 109.116 H10 C6 H12 109.376
H10 C6 H14 109.116 H11 C5 H13 109.380
H12 C6 H14 109.380
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability