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All results from a given calculation for NH2COOC2H5 (Urethane)

using model chemistry: MP2/6-311G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A
Energy calculated at MP2/6-311G*
 hartrees
Energy at 0K-322.908818
Energy at 298.15K-322.918147
HF Energy-321.944340
Nuclear repulsion energy246.584494
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 MP2/6-311G*
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 3761 3574 33.14      
2 A 3641 3460 26.78      
3 A 3199 3040 18.86      
4 A 3185 3027 17.59      
5 A 3135 2979 18.80      
6 A 3093 2940 13.20      
7 A 3058 2906 40.46      
8 A 1870 1777 475.36      
9 A 1702 1618 131.14      
10 A 1568 1490 2.04      
11 A 1540 1464 4.46      
12 A 1522 1447 8.63      
13 A 1465 1392 9.89      
14 A 1437 1365 28.27      
15 A 1366 1299 363.97      
16 A 1341 1275 3.17      
17 A 1209 1149 5.27      
18 A 1182 1123 17.07      
19 A 1139 1082 160.05      
20 A 1124 1068 18.82      
21 A 1009 959 19.18      
22 A 875 831 20.59      
23 A 857 814 1.10      
24 A 788 749 53.27      
25 A 607 577 182.96      
26 A 579 550 13.80      
27 A 558 530 3.11      
28 A 453 431 67.05      
29 A 390 371 3.93      
30 A 276 262 0.85      
31 A 226 215 1.85      
32 A 112 106 0.39      
33 A 96 91 2.92      

Unscaled Zero Point Vibrational Energy (zpe) 24181.7 cm-1
Scaled (by 0.9503) Zero Point Vibrational Energy (zpe) 22979.8 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 MP2/6-311G*
ABC
0.29155 0.07146 0.05893

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

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 2.535 -0.251 0.065
H2 2.689 -0.864 -0.824
H3 3.352 0.472 0.140
H4 2.556 -0.898 0.942
C5 1.211 0.473 -0.019
H6 1.036 1.081 0.875
H7 1.189 1.124 -0.903
O8 0.200 -0.533 -0.126
N9 -1.355 1.169 0.088
H10 -0.729 1.824 -0.345
H11 -2.332 1.391 -0.003
C12 -1.108 -0.186 -0.018
O13 -1.964 -1.034 0.043

Atom - Atom Distances (Å)
  C1 H2 H3 H4 C5 H6 H7 O8 N9 H10 H11 C12 O13
C11.09081.09281.09061.51132.16262.15342.35954.14133.88925.13723.64464.5666
H21.09081.77561.77142.14943.06602.49152.60514.61714.37435.56493.93994.7355
H31.09281.77561.77582.14672.50502.48813.31854.75884.32625.75994.51075.5255
H41.09061.77141.77582.14742.49613.05932.61194.50524.45595.47943.85384.6099
C51.51132.14942.14672.14741.09461.09801.43032.66102.38643.66032.41073.5148
H62.16263.06602.50502.49611.09461.78442.07522.51882.27043.49452.64543.7633
H72.15342.49152.48813.05931.09801.78442.07992.73062.11623.64422.78803.9357
O82.35952.60513.31852.61191.43032.07522.07992.31602.54353.18311.35812.2278
N94.14134.61714.75884.50522.66102.51882.73062.31601.00491.00611.38112.2858
H103.88924.37434.32624.45592.38642.27042.11622.54351.00491.69622.07143.1376
H115.13725.56495.75995.47943.66033.49453.64423.18311.00611.69621.99612.4528
C123.64463.93994.51073.85382.41072.64542.78801.35811.38112.07141.99611.2065
O134.56664.73555.52554.60993.51483.76333.93572.22782.28583.13762.45281.2065

picture of Urethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C5 H6 111.165 C1 C5 H7 110.232
C1 C5 O8 106.635 H2 C1 H3 108.814
H2 C1 H4 108.593 H2 C1 C5 110.345
H3 C1 H4 108.845 H3 C1 C5 110.014
H4 C1 C5 110.189 C5 O8 C12 119.640
H6 C5 H7 108.944 H6 C5 O8 109.838
H7 C5 O8 110.008 O8 C12 N9 115.449
O8 C12 O13 120.498 N9 C12 O13 123.957
H10 N9 H11 115.014 H10 N9 C12 119.653
H11 N9 C12 112.523
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability