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All results from a given calculation for NH2COOC2H5 (Urethane)

using model chemistry: PBEPBE/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 PBEPBE/6-311G*
 hartrees
Energy at 0K-323.450721
Energy at 298.15K-323.459711
Nuclear repulsion energy244.857047
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/6-311G*
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 3624 3586 25.72      
2 A 3508 3471 9.57      
3 A 3068 3036 25.44      
4 A 3060 3028 23.58      
5 A 2986 2954 17.59      
6 A 2978 2947 29.22      
7 A 2916 2886 49.81      
8 A 1801 1782 453.12      
9 A 1615 1598 124.18      
10 A 1488 1473 1.15      
11 A 1469 1454 5.53      
12 A 1452 1437 8.82      
13 A 1388 1374 6.00      
14 A 1364 1349 25.92      
15 A 1291 1278 310.69      
16 A 1276 1263 16.06      
17 A 1145 1133 4.77      
18 A 1125 1113 10.14      
19 A 1070 1058 14.74      
20 A 1050 1039 152.36      
21 A 962 952 30.91      
22 A 831 823 15.04      
23 A 819 811 1.82      
24 A 741 733 24.02      
25 A 558 552 21.49      
26 A 535 530 3.28      
27 A 523 518 71.90      
28 A 380 376 77.29      
29 A 363 359 73.06      
30 A 260 257 0.39      
31 A 211 209 2.69      
32 A 113 112 0.74      
33 A 89 88 1.32      

Unscaled Zero Point Vibrational Energy (zpe) 23027.6 cm-1
Scaled (by 0.9896) Zero Point Vibrational Energy (zpe) 22788.1 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/6-311G*
ABC
0.28982 0.07018 0.05789

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBEPBE/6-311G*

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 2.566 -0.246 0.051
H2 2.714 -0.872 -0.841
H3 3.391 0.480 0.109
H4 2.609 -0.895 0.937
C5 1.233 0.474 -0.015
H6 1.073 1.098 0.882
H7 1.195 1.128 -0.909
O8 0.203 -0.531 -0.100
N9 -1.392 1.170 0.078
H10 -0.749 1.859 -0.301
H11 -2.376 1.397 -0.017
C12 -1.123 -0.185 -0.011
O13 -1.974 -1.049 0.031

Atom - Atom Distances (Å)
  C1 H2 H3 H4 C5 H6 H7 O8 N9 H10 H11 C12 O13
C11.09951.10091.09931.51652.17382.16512.38464.20343.94225.20823.68994.6096
H21.09951.78511.78152.16503.08892.51192.64024.67674.44295.63333.98554.7713
H31.10091.78511.78542.16222.52092.50573.35124.83274.38295.84114.56475.5788
H41.09931.78151.78542.16262.51693.08242.64584.58424.51615.56953.91624.6742
C51.51652.16502.16222.16261.10451.10821.44132.71682.43433.72482.44623.5496
H62.17383.08892.52092.51691.10451.79582.09152.59372.30173.57682.69563.8226
H72.16512.51192.50573.08241.10821.79582.09552.76902.16423.69082.81163.9576
O82.38462.64023.35122.64581.44132.09152.09552.33882.58023.22111.37342.2410
N94.20344.67674.83274.58422.71682.59372.76902.33881.01491.01451.38482.2948
H103.94224.44294.38294.51612.43432.30172.16422.58021.01491.71512.09793.1723
H115.20825.63335.84115.56953.72483.57683.69083.22111.01451.71512.01802.4791
C123.68993.98554.56473.91622.44622.69562.81161.37341.38482.09792.01801.2128
O134.60964.77135.57884.67423.54963.82263.95762.24102.29483.17232.47911.2128

picture of Urethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C5 H6 111.090 C1 C5 H7 110.182
C1 C5 O8 107.424 H2 C1 H3 108.449
H2 C1 H4 108.236 H2 C1 C5 110.696
H3 C1 H4 108.480 H3 C1 C5 110.390
H4 C1 C5 110.514 C5 O8 C12 120.685
H6 C5 H7 108.500 H6 C5 O8 109.777
H7 C5 O8 109.864 O8 C12 N9 115.976
O8 C12 O13 119.991 N9 C12 O13 123.984
H10 N9 H11 115.367 H10 N9 C12 121.139
H11 N9 C12 113.617
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBE/6-311G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.644      
2 H 0.233      
3 H 0.217      
4 H 0.235      
5 C -0.297      
6 H 0.221      
7 H 0.200      
8 O -0.261      
9 N -0.755      
10 H 0.344      
11 H 0.352      
12 C 0.482      
13 O -0.327      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  2.194 4.244 -0.638 4.820
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -35.649 -5.783 0.997
y -5.783 -35.977 -1.483
z 0.997 -1.483 -36.497
Traceless
 xyz
x 0.588 -5.783 0.997
y -5.783 0.097 -1.483
z 0.997 -1.483 -0.685
Polar
3z2-r2-1.369
x2-y20.328
xy-5.783
xz0.997
yz-1.483


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 9.349 0.267 -0.093
y 0.267 7.383 -0.076
z -0.093 -0.076 5.233


<r2> (average value of r2) Å2
<r2> 193.877
(<r2>)1/2 13.924