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All results from a given calculation for NH2COOC2H5 (Urethane)

using model chemistry: PBEPBE/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 PBEPBE/6-31G**
 hartrees
Energy at 0K-323.379395
Energy at 298.15K-323.388387
Nuclear repulsion energy244.499734
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 PBEPBE/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 3637 3587 35.62      
2 A 3510 3462 12.56      
3 A 3092 3050 16.49      
4 A 3084 3042 16.12      
5 A 3001 2960 13.00      
6 A 2989 2948 27.03      
7 A 2921 2881 45.19      
8 A 1816 1791 402.20      
9 A 1577 1555 126.51      
10 A 1483 1463 1.21      
11 A 1465 1445 5.16      
12 A 1449 1429 5.97      
13 A 1386 1367 5.09      
14 A 1360 1341 34.79      
15 A 1295 1277 307.61      
16 A 1262 1245 3.24      
17 A 1140 1124 4.79      
18 A 1121 1105 14.91      
19 A 1069 1054 38.56      
20 A 1055 1040 103.30      
21 A 964 951 21.54      
22 A 834 823 12.93      
23 A 814 803 1.74      
24 A 732 722 28.94      
25 A 556 548 39.95      
26 A 537 529 14.94      
27 A 526 519 63.31      
28 A 397 392 106.35      
29 A 368 363 12.32      
30 A 257 253 0.48      
31 A 211 208 2.26      
32 A 115 113 1.11      
33 A 87 86 1.30      

Unscaled Zero Point Vibrational Energy (zpe) 23053.3 cm-1
Scaled (by 0.9863) Zero Point Vibrational Energy (zpe) 22737.5 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 PBEPBE/6-31G**
ABC
0.28868 0.07005 0.05779

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

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 2.568 -0.247 0.052
H2 2.719 -0.864 -0.848
H3 3.391 0.482 0.118
H4 2.611 -0.905 0.933
C5 1.232 0.473 -0.010
H6 1.067 1.089 0.893
H7 1.198 1.140 -0.897
O8 0.203 -0.533 -0.109
N9 -1.389 1.175 0.082
H10 -0.754 1.852 -0.333
H11 -2.377 1.388 -0.022
C12 -1.122 -0.183 -0.012
O13 -1.979 -1.050 0.035

Atom - Atom Distances (Å)
  C1 H2 H3 H4 C5 H6 H7 O8 N9 H10 H11 C12 O13
C11.10061.10161.10051.51962.17912.16852.38774.20543.94915.20953.69144.6174
H21.10061.78781.78462.16773.09392.51582.64244.67904.43855.63213.98894.7834
H31.10161.78781.78822.16302.52362.50433.35324.83004.38885.84054.56355.5846
H41.10051.78461.78822.16562.52203.08642.64954.58794.53065.57203.91754.6788
C51.51962.16772.16302.16561.10601.11011.44222.71472.43933.72322.44343.5536
H62.17913.09392.52362.52201.10601.79572.09392.58852.32463.57662.68933.8199
H72.16852.51582.50433.08641.11011.79572.10002.76622.15323.68932.81333.9692
O82.38772.64243.35322.64951.44222.09392.10002.34302.58003.21831.37412.2470
N94.20544.67904.83004.58792.71472.58852.76622.34301.01661.01621.38722.3019
H103.94914.43854.38884.53062.43932.32462.15322.58001.01661.71682.09283.1709
H115.20955.63215.84055.57203.72323.57663.68933.21831.01621.71682.01082.4703
C123.69143.98894.56353.91752.44342.68932.81331.37411.38722.09282.01081.2196
O134.61744.78345.58464.67883.55363.81993.96922.24702.30193.17092.47031.2196

picture of Urethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C5 H6 111.201 C1 C5 H7 110.124
C1 C5 O8 107.416 H2 C1 H3 108.547
H2 C1 H4 108.348 H2 C1 C5 110.627
H3 C1 H4 108.596 H3 C1 C5 110.195
H4 C1 C5 110.465 C5 O8 C12 120.337
H6 C5 H7 108.246 H6 C5 O8 109.809
H7 C5 O8 110.048 O8 C12 N9 116.104
O8 C12 O13 119.950 N9 C12 O13 123.891
H10 N9 H11 115.243 H10 N9 C12 120.270
H11 N9 C12 112.664
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBE/6-31G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.385      
2 H 0.147      
3 H 0.126      
4 H 0.149      
5 C -0.021      
6 H 0.133      
7 H 0.110      
8 O -0.411      
9 N -0.605      
10 H 0.265      
11 H 0.286      
12 C 0.659      
13 O -0.453      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  2.240 4.088 -0.673 4.709
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -34.887 -5.729 1.096
y -5.729 -35.409 -1.537
z 1.096 -1.537 -35.863
Traceless
 xyz
x 0.749 -5.729 1.096
y -5.729 -0.034 -1.537
z 1.096 -1.537 -0.715
Polar
3z2-r2-1.430
x2-y20.522
xy-5.729
xz1.096
yz-1.537


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 9.033 0.306 -0.122
y 0.306 7.086 -0.093
z -0.122 -0.093 4.843


<r2> (average value of r2) Å2
<r2> 193.787
(<r2>)1/2 13.921