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All results from a given calculation for NH2COOC2H5 (Urethane)

using model chemistry: MP2/cc-pVDZ

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/cc-pVDZ
 hartrees
Energy at 0K-322.844769
Energy at 298.15K-322.854079
HF Energy-321.896533
Nuclear repulsion energy245.792068
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/cc-pVDZ
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 3726 3549 36.72      
2 A 3601 3430 24.19      
3 A 3212 3059 14.78      
4 A 3202 3050 14.56      
5 A 3134 2985 23.07      
6 A 3099 2952 12.92      
7 A 3051 2906 42.83      
8 A 1878 1789 442.88      
9 A 1628 1550 117.97      
10 A 1527 1454 0.96      
11 A 1502 1431 2.34      
12 A 1482 1411 5.97      
13 A 1439 1370 9.95      
14 A 1401 1335 44.92      
15 A 1355 1291 332.23      
16 A 1314 1251 2.09      
17 A 1186 1130 5.08      
18 A 1167 1111 23.14      
19 A 1136 1082 124.37      
20 A 1112 1060 35.51      
21 A 1005 958 23.08      
22 A 871 829 20.03      
23 A 841 801 0.44      
24 A 787 750 51.74      
25 A 609 580 153.47      
26 A 572 545 11.87      
27 A 555 529 0.82      
28 A 435 414 55.28      
29 A 386 368 3.44      
30 A 275 262 0.91      
31 A 224 214 1.66      
32 A 113 108 0.90      
33 A 100 95 2.27      

Unscaled Zero Point Vibrational Energy (zpe) 23962.2 cm-1
Scaled (by 0.9525) Zero Point Vibrational Energy (zpe) 22824.0 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/cc-pVDZ
ABC
0.28952 0.07121 0.05870

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/cc-pVDZ

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 2.548 -0.248 0.059
H2 2.700 -0.855 -0.846
H3 3.371 0.482 0.140
H4 2.575 -0.913 0.935
C5 1.215 0.473 -0.008
H6 1.041 1.078 0.898
H7 1.191 1.146 -0.888
O8 0.203 -0.535 -0.129
N9 -1.363 1.179 0.100
H10 -0.766 1.803 -0.433
H11 -2.352 1.372 -0.032
C12 -1.112 -0.186 -0.013
O13 -1.969 -1.040 0.041

Atom - Atom Distances (Å)
  C1 H2 H3 H4 C5 H6 H7 O8 N9 H10 H11 C12 O13
C11.10081.10201.10071.51712.17582.16392.37014.16403.92855.16253.66154.5867
H21.10081.79151.78652.16133.08762.50722.61734.64184.38785.58173.95904.7566
H31.10201.79151.79202.16082.52182.49993.33744.78544.38045.79464.53465.5533
H41.10071.78651.79202.15902.51403.07922.62664.53704.51815.51703.87564.6330
C51.51712.16132.16082.15901.10391.10811.43332.67562.42373.67922.41843.5256
H62.17583.08762.52182.51401.10391.79382.08762.53502.35853.53042.65723.7785
H72.16392.50722.49993.07921.10811.79382.09292.73932.11403.65272.80103.9535
O82.37012.61733.33742.62661.43332.08762.09292.33362.54973.19081.36582.2369
N94.16404.64184.78544.53702.67562.53502.73932.33361.01541.01631.39252.3003
H103.92854.38784.38044.51812.42372.35852.11402.54971.01541.69222.06233.1230
H115.16255.58175.79465.51703.67923.53043.65273.19081.01631.69221.99202.4433
C123.66153.95904.53463.87562.41842.65722.80101.36581.39252.06231.99201.2110
O134.58674.75665.55334.63303.52563.77853.95352.23692.30033.12302.44331.2110

picture of Urethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C5 H6 111.253 C1 C5 H7 110.058
C1 C5 O8 106.863 H2 C1 H3 108.842
H2 C1 H4 108.488 H2 C1 C5 110.284
H3 C1 H4 108.894 H3 C1 C5 110.177
H4 C1 C5 110.113 C5 O8 C12 119.516
H6 C5 H7 108.382 H6 C5 O8 110.060
H7 C5 O8 110.227 O8 C12 N9 115.565
O8 C12 O13 120.358 N9 C12 O13 124.006
H10 N9 H11 112.796 H10 N9 C12 116.984
H11 N9 C12 110.612
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability