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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-322.963941
Energy at 298.15K-322.973252
HF Energy-321.958066
Nuclear repulsion energy246.604081
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 3747 3561 37.40      
2 A 3629 3448 27.29      
3 A 3195 3036 18.03      
4 A 3184 3025 17.12      
5 A 3126 2970 19.61      
6 A 3091 2937 12.68      
7 A 3052 2900 39.73      
8 A 1869 1776 467.18      
9 A 1642 1560 126.13      
10 A 1551 1473 2.68      
11 A 1524 1448 2.85      
12 A 1502 1427 6.36      
13 A 1457 1384 11.48      
14 A 1420 1349 18.06      
15 A 1353 1285 369.46      
16 A 1333 1266 2.28      
17 A 1202 1143 5.51      
18 A 1175 1116 23.09      
19 A 1137 1080 123.90      
20 A 1111 1055 34.76      
21 A 1006 956 20.68      
22 A 873 829 20.24      
23 A 854 811 0.60      
24 A 783 744 48.59      
25 A 600 570 156.69      
26 A 576 547 18.45      
27 A 557 529 2.78      
28 A 441 419 58.96      
29 A 388 369 3.67      
30 A 273 259 0.83      
31 A 225 214 1.86      
32 A 110 104 0.93      
33 A 96 91 2.12      

Unscaled Zero Point Vibrational Energy (zpe) 24038.8 cm-1
Scaled (by 0.9502) Zero Point Vibrational Energy (zpe) 22841.7 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
0.29202 0.07148 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 2.545 -0.248 0.059
H2 2.692 -0.858 -0.834
H3 3.361 0.477 0.132
H4 2.570 -0.898 0.935
C5 1.215 0.474 -0.013
H6 1.047 1.078 0.884
H7 1.190 1.131 -0.893
O8 0.202 -0.530 -0.122
N9 -1.368 1.171 0.093
H10 -0.758 1.813 -0.386
H11 -2.350 1.373 -0.023
C12 -1.110 -0.187 -0.013
O13 -1.961 -1.038 0.039

Atom - Atom Distances (Å)
  C1 H2 H3 H4 C5 H6 H7 O8 N9 H10 H11 C12 O13
C11.09181.09361.09161.51472.16402.15512.36654.16223.91805.15633.65594.5750
H21.09181.77821.77412.15173.06732.49342.61044.63274.38595.57253.94714.7381
H31.09361.77821.77812.15062.50632.48873.32494.77954.36065.78234.52205.5343
H41.09161.77411.77812.14912.49593.06062.61884.52754.49125.50243.86594.6211
C51.51472.15172.15062.14911.09481.09851.43072.67752.41323.67622.41733.5186
H62.16403.06732.50632.49591.09481.78402.07692.54262.32593.52782.65683.7741
H72.15512.49342.48873.06061.09851.78402.08102.74152.12453.65272.79303.9375
O82.36652.61043.32492.61881.43072.07692.08102.32542.54643.18481.36062.2282
N94.16224.63274.77954.52752.67752.54262.74152.32541.00751.00891.38702.2886
H103.91804.38594.36064.49122.41322.32592.12452.54641.00751.69162.06563.1245
H115.15635.57255.78235.50243.67623.52783.65273.18481.00891.69161.99262.4427
C123.65593.94714.52203.86592.41732.65682.79301.36061.38702.06561.99261.2049
O134.57504.73815.53434.62113.51863.77413.93752.22822.28863.12452.44271.2049

picture of Urethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C5 H6 111.024 C1 C5 H7 110.097
C1 C5 O8 106.886 H2 C1 H3 108.916
H2 C1 H4 108.689 H2 C1 C5 110.228
H3 C1 H4 108.914 H3 C1 C5 110.027
H4 C1 C5 110.032 C5 O8 C12 119.978
H6 C5 H7 108.854 H6 C5 O8 109.931
H7 C5 O8 110.036 O8 C12 N9 115.623
O8 C12 O13 120.456 N9 C12 O13 123.855
H10 N9 H11 114.056 H10 N9 C12 118.365
H11 N9 C12 111.566
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability