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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-301.013574
HF Energy-300.359769
Nuclear repulsion energy245.165989
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 3449 21.62      
2 A 3134 3012 1.60      
3 A 3054 2935 0.00      
4 A 3012 2895 1.62      
5 A 1708 1641 119.10      
6 A 1599 1537 28.90      
7 A 1588 1526 0.00      
8 A 1530 1470 21.80      
9 A 1477 1419 63.50      
10 A 1203 1156 6.59      
11 A 1179 1133 0.00      
12 A 1167 1122 2.56      
13 A 915 880 5.98      
14 A 504 485 1.90      
15 A 244 235 0.83      
16 A 210 202 0.00      
17 A 167 161 0.00      
18 A 30 28 0.00      
19 B 3581 3441 6.46      
20 B 3134 3012 0.04      
21 B 3054 2935 100.23      
22 B 3011 2894 123.93      
23 B 1610 1548 62.78      
24 B 1589 1527 10.76      
25 B 1550 1490 315.01      
26 B 1491 1433 9.95      
27 B 1252 1204 378.20      
28 B 1186 1139 3.45      
29 B 1179 1133 47.39      
30 B 1023 984 3.16      
31 B 755 726 38.36      
32 B 711 683 7.93      
33 B 474 456 330.49      
34 B 382 367 36.13      
35 B 145 139 4.85      
36 B 104 100 16.08      

Unscaled Zero Point Vibrational Energy (zpe) 26269.6 cm-1
Scaled (by 0.9611) Zero Point Vibrational Energy (zpe) 25247.8 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 QCISD/3-21G*
ABC
0.31872 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 -0.000 2.478 0.012
C6 0.000 -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
C11.25441.38941.38942.47932.47932.09762.09763.20883.20882.47102.47103.20923.2092
O21.25442.32372.32372.81392.81393.22623.22623.56433.56432.27662.27663.56523.5652
N31.38942.32372.33211.47633.70641.01282.50872.14044.34372.06523.84902.14034.3438
N41.38942.32372.33213.70641.47632.50871.01284.34372.14043.84902.06524.34382.1403
C52.47932.81391.47633.70644.95612.16133.98321.10055.61881.09534.85991.10055.6192
C62.47932.81393.70641.47634.95613.98322.16135.61881.10054.85991.09535.61921.1005
H72.09763.22621.01282.50872.16133.98322.25882.56904.52132.98574.37412.56924.5205
H82.09763.22622.50871.01283.98322.16132.25884.52132.56904.37412.98574.52052.5692
H93.20883.56432.14044.34371.10055.61882.56904.52136.38311.79185.56041.79316.1263
H103.20883.56434.34372.14045.61881.10054.52132.56906.38315.56041.79186.12631.7931
H112.47102.27662.06523.84901.09534.85992.98574.37411.79185.56044.52361.79185.5614
H122.47102.27663.84902.06524.85991.09534.37412.98575.56041.79184.52365.56141.7918
H133.20923.56522.14034.34381.10055.61922.56924.52051.79316.12631.79185.56146.3836
H143.20923.56524.34382.14035.61921.10054.52052.56926.12631.79315.56141.79186.3836

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 119.773 C1 N3 H7 120.864
C1 N4 C6 119.773 C1 N4 H8 120.864
O2 C1 N3 122.938 O2 C1 N4 122.938
N3 C1 N4 114.123 N3 C5 H9 111.500
N3 C5 H11 105.902 N3 C5 H13 111.496
N4 C6 H10 111.500 N4 C6 H12 105.902
N4 C6 H14 111.496 C5 N3 H7 119.363
C6 N4 H8 119.363 H9 C5 H11 109.375
H9 C5 H13 109.115 H10 C6 H12 109.375
H10 C6 H14 109.115 H11 C5 H13 109.381
H12 C6 H14 109.381
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability