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

using model chemistry: MP2/CEP-121G

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-121G
 hartrees
Energy at 0K-56.679802
Energy at 298.15K-56.689940
HF Energy-56.074066
Nuclear repulsion energy134.025110
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-121G
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 3723 3634 25.81      
2 A 3596 3510 25.95      
3 A 3567 3481 27.49      
4 A 3087 3013 38.47      
5 A 3085 3011 46.08      
6 A 3014 2941 32.28      
7 A 2977 2905 24.15      
8 A 2957 2886 53.85      
9 A 1713 1672 245.49      
10 A 1654 1614 381.70      
11 A 1562 1525 5.28      
12 A 1527 1490 11.84      
13 A 1519 1483 8.01      
14 A 1486 1450 20.96      
15 A 1454 1419 2.96      
16 A 1415 1381 356.00      
17 A 1393 1360 35.76      
18 A 1293 1262 0.37      
19 A 1194 1166 6.81      
20 A 1191 1163 10.50      
21 A 1128 1101 32.71      
22 A 1062 1037 18.10      
23 A 977 953 2.84      
24 A 880 859 3.02      
25 A 839 819 0.87      
26 A 691 675 40.16      
27 A 558 545 48.94      
28 A 520 507 32.98      
29 A 510 498 129.77      
30 A 436 425 6.35      
31 A 358 350 14.33      
32 A 330 322 242.85      
33 A 253 247 2.07      
34 A 197 192 5.54      
35 A 81 79 3.79      
36 A 57 55 2.75      

Unscaled Zero Point Vibrational Energy (zpe) 26140.2 cm-1
Scaled (by 0.976) Zero Point Vibrational Energy (zpe) 25512.8 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 MP2/CEP-121G
ABC
0.27139 0.06403 0.05301

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/CEP-121G

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -2.644 -0.223 0.057
H2 -2.685 -0.892 0.932
H3 -3.466 0.507 0.140
H4 -2.802 -0.818 -0.858
C5 -1.277 0.517 -0.002
H6 -1.271 1.207 -0.868
H7 -1.130 1.114 0.917
N8 -0.177 -0.478 -0.136
H9 -0.406 -1.469 -0.136
N10 1.531 1.168 0.053
H11 2.523 1.375 0.072
H12 0.895 1.898 -0.245
C13 1.194 -0.202 -0.016
O14 2.080 -1.124 0.051

Atom - Atom Distances (Å)
  C1 H2 H3 H4 C5 H6 H7 N8 H9 N10 H11 H12 C13 O14
C11.10251.10181.10261.55592.18812.19592.48802.56914.40115.40914.13713.83864.8096
H21.10251.78721.79542.20013.10602.53822.75692.58214.77405.74474.68864.05184.8512
H31.10181.78721.78652.19332.51512.53593.44403.65275.04126.05214.59354.71545.7813
H41.10261.79541.78652.20042.53933.11152.74382.58584.85305.83384.62824.12954.9754
C51.55592.20012.19332.20041.10721.10571.48942.17282.88323.89672.58512.57313.7372
H62.18813.10602.51512.53931.10721.79312.13802.90582.94943.91222.35682.96334.1838
H72.19592.53822.53593.11151.10571.79312.13302.88152.79803.75852.46262.82824.0075
N82.48802.75693.44402.74381.48942.13802.13301.01692.37963.28132.60851.40312.3551
H92.56912.58213.65272.58582.17282.90582.88151.01693.27734.08753.61062.04392.5167
N104.40114.77405.04124.85302.88322.94942.79802.37963.27731.01371.01271.41252.3569
H115.40915.74476.05215.83383.89673.91223.75853.28134.08751.01371.73942.06422.5376
H124.13714.68864.59354.62822.58512.35682.46262.60853.61061.01271.73942.13263.2590
C133.83864.05184.71544.12952.57312.96332.82821.40312.04391.41252.06422.13261.2811
O144.80964.85125.78134.97543.73724.18384.00752.35512.51672.35692.53763.25901.2811

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 109.340 C1 C5 H7 110.031
C1 C5 N8 109.548 H2 C1 H3 108.337
H2 C1 H4 109.012 H2 C1 C5 110.540
H3 C1 H4 108.274 H3 C1 C5 110.053
H4 C1 C5 110.560 C5 N8 H9 119.002
C5 N8 C13 125.611 H6 C5 H7 108.251
H6 C5 N8 109.983 H7 C5 N8 109.669
N8 C13 N10 115.375 N8 C13 O14 122.595
H9 N8 C13 114.307 N10 C13 O14 122.017
H11 N10 H12 118.273 H11 N10 C13 115.618
H12 N10 C13 122.271
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability