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All results from a given calculation for NH2COOC2H5 (Urethane)

using model chemistry: HF/6-31G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A
Energy calculated at HF/6-31G*
 hartrees
Energy at 0K-321.871470
Energy at 298.15K-321.880937
HF Energy-321.871470
Nuclear repulsion energy248.745629
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 HF/6-31G*
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 3954 3553 51.16      
2 A 3839 3449 45.01      
3 A 3306 2971 44.49      
4 A 3288 2955 36.83      
5 A 3268 2936 19.48      
6 A 3221 2894 20.34      
7 A 3205 2880 49.90      
8 A 2022 1817 699.91      
9 A 1812 1628 150.06      
10 A 1681 1510 2.58      
11 A 1644 1477 1.07      
12 A 1628 1463 3.86      
13 A 1589 1428 14.67      
14 A 1553 1395 33.35      
15 A 1495 1344 470.56      
16 A 1437 1292 1.33      
17 A 1298 1166 6.90      
18 A 1278 1148 74.17      
19 A 1235 1109 126.66      
20 A 1206 1084 9.02      
21 A 1070 962 5.18      
22 A 946 850 17.68      
23 A 903 811 1.51      
24 A 873 784 77.82      
25 A 632 568 37.64      
26 A 604 543 26.87      
27 A 596 536 101.66      
28 A 420 377 118.92      
29 A 405 363 30.81      
30 A 281 252 0.88      
31 A 231 208 2.05      
32 A 105 94 0.58      
33 A 96 86 3.82      

Unscaled Zero Point Vibrational Energy (zpe) 25560.1 cm-1
Scaled (by 0.8985) Zero Point Vibrational Energy (zpe) 22965.8 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 HF/6-31G*
ABC
0.29897 0.07200 0.05951

See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/6-31G*

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 2.540 -0.249 0.046
H2 2.680 -0.815 -0.867
H3 3.359 0.456 0.147
H4 2.567 -0.936 0.883
C5 1.219 0.491 0.013
H6 1.065 1.053 0.926
H7 1.196 1.180 -0.826
O8 0.198 -0.478 -0.132
N9 -1.421 1.134 0.070
H10 -0.837 1.825 -0.341
H11 -2.399 1.308 0.005
C12 -1.096 -0.192 -0.013
O13 -1.906 -1.060 0.045

Atom - Atom Distances (Å)
  C1 H2 H3 H4 C5 H6 H7 O8 N9 H10 H11 C12 O13
C11.08331.08511.08321.51452.15542.14682.36064.19553.98225.17883.63774.5195
H21.08331.76221.75782.14813.05172.48642.61124.63614.42905.57333.92184.6823
H31.08511.76221.76262.14422.49472.47963.30824.82794.44055.82194.50515.4796
H41.08321.75781.76262.14672.49273.04582.61784.56594.55085.51963.84414.5524
C51.51452.14812.14422.14671.08311.08641.41532.71762.47673.70902.41433.4885
H62.15543.05172.49472.49271.08311.76192.05322.63042.41273.59352.66553.7505
H72.14682.48642.47963.04581.08641.76192.05632.76642.18763.69172.79273.9236
O82.36062.61123.30822.61781.41532.05322.05632.29312.53353.15431.33052.1894
N94.19554.63614.82794.56592.71762.63042.76642.29310.99350.99561.36772.2466
H103.98224.42904.44054.55082.47672.41272.18762.53350.99351.68072.05993.1001
H115.17885.57335.82195.51963.70903.59353.69173.15430.99561.68071.98672.4187
C123.63773.92184.50513.84412.41432.66552.79271.33051.36772.05991.98671.1877
O134.51954.68235.47964.55243.48853.75053.92362.18942.24663.10012.41871.1877

picture of Urethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C5 H6 111.060 C1 C5 H7 110.171
C1 C5 O8 107.312 H2 C1 H3 108.710
H2 C1 H4 108.460 H2 C1 C5 110.463
H3 C1 H4 108.761 H3 C1 C5 110.038
H4 C1 C5 110.359 C5 O8 C12 123.073
H6 C5 H7 108.608 H6 C5 O8 109.815
H7 C5 O8 109.867 O8 C12 N9 116.383
O8 C12 O13 120.675 N9 C12 O13 122.922
H10 N9 H11 115.338 H10 N9 C12 120.652
H11 N9 C12 113.481
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.490      
2 H 0.187      
3 H 0.165      
4 H 0.190      
5 C -0.022      
6 H 0.181      
7 H 0.151      
8 O -0.611      
9 N -0.924      
10 H 0.385      
11 H 0.401      
12 C 0.970      
13 O -0.584      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  2.537 4.619 -0.703 5.316
CHELPG 2.569 4.598 -0.741 5.319
AIM        
ESP 2.570 4.602 -0.720 5.320


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -35.744 -6.115 1.336
y -6.115 -36.468 -1.683
z 1.336 -1.683 -35.987
Traceless
 xyz
x 0.484 -6.115 1.336
y -6.115 -0.602 -1.683
z 1.336 -1.683 0.119
Polar
3z2-r20.238
x2-y20.724
xy-6.115
xz1.336
yz-1.683


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 7.257 0.370 -0.124
y 0.370 6.149 -0.085
z -0.124 -0.085 4.481


<r2> (average value of r2) Å2
<r2> 189.503
(<r2>)1/2 13.766