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All results from a given calculation for NH2CONHC2H5 (Urea, ethyl-)

using model chemistry: MP2/CEP-31G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A
Energy calculated at MP2/CEP-31G
 hartrees
Energy at 0K-56.605828
Energy at 298.15K-56.615777
HF Energy-56.061837
Nuclear repulsion energy133.407672
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/CEP-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 3794 3666 36.12      
2 A 3655 3532 32.40      
3 A 3637 3515 41.03      
4 A 3148 3042 64.51      
5 A 3148 3042 50.31      
6 A 3075 2972 49.21      
7 A 3042 2939 29.88      
8 A 3020 2918 62.15      
9 A 1708 1651 320.74      
10 A 1654 1598 321.43      
11 A 1559 1506 5.64      
12 A 1528 1477 10.29      
13 A 1518 1467 7.76      
14 A 1481 1431 19.18      
15 A 1458 1408 2.70      
16 A 1429 1381 384.01      
17 A 1392 1346 27.28      
18 A 1308 1264 0.62      
19 A 1202 1161 18.84      
20 A 1198 1157 1.75      
21 A 1124 1086 18.24      
22 A 1067 1031 17.02      
23 A 988 954 2.61      
24 A 889 859 4.82      
25 A 848 820 1.26      
26 A 702 678 42.87      
27 A 554 535 6.44      
28 A 524 507 188.69      
29 A 519 501 15.37      
30 A 419 405 17.63      
31 A 357 345 0.07      
32 A 272 263 293.53      
33 A 247 239 16.77      
34 A 197 190 6.03      
35 A 62 60 6.12      
36 A 46 45 9.74      

Unscaled Zero Point Vibrational Energy (zpe) 26383.0 cm-1
Scaled (by 0.9663) Zero Point Vibrational Energy (zpe) 25493.9 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/CEP-31G
ABC
0.27137 0.06327 0.05236

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/CEP-31G

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -2.690 -0.241 0.006
H2 -2.782 -0.883 0.907
H3 -3.524 0.491 0.014
H4 -2.793 -0.876 -0.900
C5 -1.318 0.509 -0.000
H6 -1.253 1.163 -0.900
H7 -1.239 1.155 0.904
N8 -0.200 -0.481 -0.013
H9 -0.411 -1.481 -0.012
N10 1.492 1.207 0.004
H11 2.481 1.444 0.006
H12 0.802 1.952 -0.024
C13 1.174 -0.171 -0.002
O14 2.085 -1.079 0.005

Atom - Atom Distances (Å)
  C1 H2 H3 H4 C5 H6 H7 N8 H9 N10 H11 H12 C13 O14
C11.11051.11001.11051.56432.20422.20512.50132.59454.42615.43934.12413.86454.8485
H21.11051.79971.80722.21463.12892.55612.76942.61214.84235.82464.66354.12034.9538
H31.11001.79971.79972.20622.53822.53993.46303.68525.06676.08034.56594.74405.8249
H41.11051.80721.79972.21462.55563.12952.76852.61314.84995.83324.65734.12794.9659
C51.56432.21462.20622.21461.11421.11411.49312.18662.89523.91252.56452.58243.7552
H62.20423.12892.53822.55561.11421.80352.14482.91332.89063.85302.36892.91134.1220
H72.20512.55612.53993.12951.11411.80352.14442.91112.87613.83832.37972.89854.1052
N82.50132.76943.46302.76851.49312.14482.14441.02112.39103.30172.63221.40882.3627
H92.59452.61213.68522.61312.18662.91332.91111.02113.29334.11343.64092.05572.5285
N104.42614.84235.06674.84992.89522.89062.87612.39103.29331.01731.01611.41452.3616
H115.43935.82466.08035.83323.91253.85303.83833.30174.11341.01731.75492.07822.5538
H124.12414.66354.56594.65732.56452.36892.37972.63223.64091.01611.75492.15573.2917
C133.86454.12034.74404.12792.58242.91132.89851.40882.05571.41452.07822.15571.2866
O144.84854.95385.82494.96593.75524.12204.10522.36272.52852.36162.55383.29171.2866

picture of Urea, ethyl- state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C5 H6 109.615 C1 C5 H7 109.692
C1 C5 N8 109.777 H2 C1 H3 108.289
H2 C1 H4 108.917 H2 C1 C5 110.635
H3 C1 H4 108.283 H3 C1 C5 110.012
H4 C1 C5 110.636 C5 N8 H9 119.666
C5 N8 C13 125.701 H6 C5 H7 108.068
H6 C5 N8 109.843 H7 C5 N8 109.821
N8 C13 N10 115.746 N8 C13 O14 122.396
H9 N8 C13 114.624 N10 C13 O14 121.858
H11 N10 H12 119.324 H11 N10 C13 116.486
H12 N10 C13 124.156
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability