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All results from a given calculation for NH2COOC2H5 (Urethane)

using model chemistry: MP2=FULL/6-311G*

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=FULL/6-311G*
 hartrees
Energy at 0K-323.021301
Energy at 298.15K-323.030635
HF Energy-321.944622
Nuclear repulsion energy246.791785
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=FULL/6-311G*
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 3766 3567 34.17      
2 A 3646 3453 27.54      
3 A 3202 3033 18.43      
4 A 3189 3020 17.23      
5 A 3138 2972 18.89      
6 A 3097 2933 13.00      
7 A 3061 2899 40.34      
8 A 1874 1775 478.37      
9 A 1703 1613 132.71      
10 A 1569 1486 2.10      
11 A 1541 1459 4.49      
12 A 1523 1443 8.78      
13 A 1467 1389 9.84      
14 A 1438 1362 29.97      
15 A 1369 1297 366.68      
16 A 1344 1272 2.81      
17 A 1210 1146 5.33      
18 A 1183 1121 17.74      
19 A 1142 1082 152.05      
20 A 1126 1066 21.21      
21 A 1012 959 19.32      
22 A 877 830 20.13      
23 A 858 813 1.02      
24 A 790 748 50.18      
25 A 602 570 172.60      
26 A 580 549 21.56      
27 A 559 529 3.33      
28 A 451 427 72.21      
29 A 391 370 4.26      
30 A 276 262 0.83      
31 A 227 215 1.89      
32 A 112 106 0.37      
33 A 96 91 2.93      

Unscaled Zero Point Vibrational Energy (zpe) 24208.5 cm-1
Scaled (by 0.9471) Zero Point Vibrational Energy (zpe) 22927.9 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=FULL/6-311G*
ABC
0.29213 0.07158 0.05902

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2=FULL/6-311G*

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 2.541 -0.248 0.067
H2 2.696 -0.858 -0.824
H3 3.361 0.469 0.148
H4 2.557 -0.900 0.941
C5 1.218 0.477 -0.017
H6 1.041 1.080 0.879
H7 1.200 1.134 -0.896
O8 0.203 -0.524 -0.135
N9 -1.374 1.166 0.091
H10 -0.769 1.823 -0.371
H11 -2.357 1.368 0.005
C12 -1.108 -0.187 -0.014
O13 -1.954 -1.043 0.044

Atom - Atom Distances (Å)
  C1 H2 H3 H4 C5 H6 H7 O8 N9 H10 H11 C12 O13
C11.09051.09241.09031.51162.16162.15262.36294.16293.92955.15783.65034.5651
H21.09051.77441.77022.14953.06472.49162.60754.63664.40495.58293.94624.7339
H31.09241.77441.77452.14982.50772.48993.32264.78664.37775.78974.51985.5272
H41.09031.77021.77452.14662.49443.05782.61564.52184.49465.49213.85404.6019
C51.51162.14952.14982.14661.09361.09761.43052.68392.42593.68362.41853.5179
H62.16163.06472.50772.49441.09361.78292.07472.54232.32213.52032.65003.7652
H72.15262.49162.48993.05781.09761.78292.07882.75762.15243.67722.80193.9464
O82.36292.60753.32262.61561.43052.07472.07882.32262.55153.18591.35892.2260
N94.16294.63664.78664.52182.68392.54232.75762.32261.00521.00661.38302.2842
H103.92954.40494.37774.49462.42592.32212.15242.55151.00521.69352.06943.1288
H115.15785.58295.78975.49213.68363.52033.67723.18591.00661.69351.99432.4441
C123.65033.94624.51983.85402.41852.65002.80191.35891.38302.06941.99431.2050
O134.56514.73395.52724.60193.51793.76523.94642.22602.28423.12882.44411.2050

picture of Urethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C5 H6 111.128 C1 C5 H7 110.168
C1 C5 O8 106.832 H2 C1 H3 108.751
H2 C1 H4 108.536 H2 C1 C5 110.346
H3 C1 H4 108.778 H3 C1 C5 110.255
H4 C1 C5 110.130 C5 O8 C12 120.216
H6 C5 H7 108.918 H6 C5 O8 109.842
H7 C5 O8 109.936 O8 C12 N9 115.792
O8 C12 O13 120.387 N9 C12 O13 123.765
H10 N9 H11 114.663 H10 N9 C12 119.269
H11 N9 C12 112.180
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability