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All results from a given calculation for NH2COOC2H5 (Urethane)

using model chemistry: PBEPBEultrafine/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 PBEPBEultrafine/6-31G*
 hartrees
Energy at 0K-323.366381
Energy at 298.15K-323.375401
Nuclear repulsion energy244.423746
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 PBEPBEultrafine/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 3608 3549 30.94      
2 A 3493 3435 11.69      
3 A 3091 3040 18.16      
4 A 3082 3031 17.57      
5 A 3003 2954 13.63      
6 A 2996 2946 26.57      
7 A 2926 2878 46.82      
8 A 1818 1788 400.39      
9 A 1605 1578 117.46      
10 A 1500 1475 1.12      
11 A 1482 1457 5.36      
12 A 1466 1442 6.46      
13 A 1398 1375 5.04      
14 A 1372 1350 28.86      
15 A 1302 1280 310.96      
16 A 1273 1252 5.15      
17 A 1148 1129 4.80      
18 A 1129 1110 12.71      
19 A 1074 1056 10.90      
20 A 1064 1046 142.87      
21 A 968 952 22.31      
22 A 836 823 13.42      
23 A 821 807 1.75      
24 A 734 722 33.12      
25 A 561 551 73.66      
26 A 539 531 38.32      
27 A 534 526 33.05      
28 A 412 405 96.04      
29 A 370 364 5.47      
30 A 259 255 0.56      
31 A 211 208 2.14      
32 A 115 113 1.10      
33 A 90 89 1.52      

Unscaled Zero Point Vibrational Energy (zpe) 23138.7 cm-1
Scaled (by 0.9835) Zero Point Vibrational Energy (zpe) 22756.9 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 PBEPBEultrafine/6-31G*
ABC
0.28816 0.07004 0.05778

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

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 2.568 -0.247 0.055
H2 2.721 -0.864 -0.845
H3 3.392 0.483 0.124
H4 2.607 -0.906 0.937
C5 1.232 0.474 -0.011
H6 1.063 1.089 0.893
H7 1.201 1.141 -0.898
O8 0.204 -0.532 -0.115
N9 -1.390 1.175 0.086
H10 -0.762 1.850 -0.348
H11 -2.380 1.387 -0.022
C12 -1.121 -0.184 -0.013
O13 -1.977 -1.051 0.037

Atom - Atom Distances (Å)
  C1 H2 H3 H4 C5 H6 H7 O8 N9 H10 H11 C12 O13
C11.10181.10291.10171.52012.18032.16962.38764.20633.95615.21173.69114.6162
H21.10181.79001.78672.16893.09592.51712.64214.68264.44355.63613.99014.7841
H31.10291.79001.79042.16412.52602.50583.35424.83184.39825.84404.56455.5848
H41.10171.78671.79042.16672.52283.08832.65004.58604.53815.57193.91504.6743
C51.52012.16892.16412.16671.10631.11051.44212.71572.44573.72552.44383.5537
H62.18033.09592.52602.52281.10631.79732.09322.58402.33433.57522.68613.8157
H72.16962.51712.50583.08831.11051.79732.09942.77162.15823.69472.81673.9727
O82.38762.64213.35422.65001.44212.09322.09942.34402.58063.21941.37402.2472
N94.20634.68264.83184.58602.71572.58402.77162.34401.01861.01811.38892.3032
H103.95614.44354.39824.53812.44572.33432.15822.58061.01861.71442.09233.1689
H115.21175.63615.84405.57193.72553.57523.69473.21941.01811.71442.01252.4716
C123.69113.99014.56453.91502.44382.68612.81671.37401.38892.09232.01251.2195
O134.61624.78415.58484.67433.55373.81573.97272.24722.30323.16892.47161.2195

picture of Urethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C5 H6 111.245 C1 C5 H7 110.150
C1 C5 O8 107.388 H2 C1 H3 108.567
H2 C1 H4 108.360 H2 C1 C5 110.616
H3 C1 H4 108.613 H3 C1 C5 110.175
H4 C1 C5 110.448 C5 O8 C12 120.383
H6 C5 H7 108.335 H6 C5 O8 109.741
H7 C5 O8 109.981 O8 C12 N9 116.066
O8 C12 O13 119.989 N9 C12 O13 123.884
H10 N9 H11 114.659 H10 N9 C12 119.919
H11 N9 C12 112.549
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBEultrafine/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.498      
2 H 0.184      
3 H 0.164      
4 H 0.186      
5 C -0.103      
6 H 0.170      
7 H 0.145      
8 O -0.401      
9 N -0.735      
10 H 0.330      
11 H 0.347      
12 C 0.662      
13 O -0.452      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  2.221 4.077 -0.728 4.700
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -34.890 -5.697 1.179
y -5.697 -35.471 -1.648
z 1.179 -1.648 -35.880
Traceless
 xyz
x 0.785 -5.697 1.179
y -5.697 -0.086 -1.648
z 1.179 -1.648 -0.699
Polar
3z2-r2-1.399
x2-y20.581
xy-5.697
xz1.179
yz-1.648


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 8.925 0.315 -0.132
y 0.315 7.018 -0.091
z -0.132 -0.091 4.783


<r2> (average value of r2) Å2
<r2> 193.854
(<r2>)1/2 13.923