return to home page Computational Chemistry Comparison and Benchmark DataBase Release 22 (May 2022) Standard Reference Database 101 National Institute of Standards and Technology
You are here: Calculated > Energy > Optimized > Energy

All results from a given calculation for NH2COOC2H5 (Urethane)

using model chemistry: PBE1PBE/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 PBE1PBE/6-31G*
 hartrees
Energy at 0K-323.383019
Energy at 298.15K-323.392211
HF Energy-323.383019
Nuclear repulsion energy246.967088
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 PBE1PBE/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 3748 3561 43.45      
2 A 3632 3451 26.85      
3 A 3182 3024 17.02      
4 A 3174 3016 16.93      
5 A 3096 2942 25.31      
6 A 3090 2936 12.21      
7 A 3029 2878 43.19      
8 A 1901 1807 496.08      
9 A 1664 1581 145.04      
10 A 1551 1474 1.31      
11 A 1528 1452 4.36      
12 A 1511 1436 6.81      
13 A 1456 1383 9.75      
14 A 1426 1355 71.32      
15 A 1375 1307 333.54      
16 A 1323 1257 0.94      
17 A 1193 1134 5.86      
18 A 1181 1123 50.46      
19 A 1140 1083 85.26      
20 A 1118 1062 21.21      
21 A 1013 963 11.68      
22 A 881 838 12.67      
23 A 845 803 0.86      
24 A 781 742 43.44      
25 A 582 553 36.41      
26 A 563 535 19.54      
27 A 551 524 77.42      
28 A 408 388 119.85      
29 A 383 364 19.34      
30 A 267 253 0.55      
31 A 220 209 2.29      
32 A 115 110 1.07      
33 A 92 88 1.73      

Unscaled Zero Point Vibrational Energy (zpe) 24008.7 cm-1
Scaled (by 0.9503) Zero Point Vibrational Energy (zpe) 22815.4 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 PBE1PBE/6-31G*
ABC
0.29423 0.07145 0.05895

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBE1PBE/6-31G*

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 2.546 -0.246 0.054
H2 2.695 -0.855 -0.843
H3 3.364 0.477 0.126
H4 2.581 -0.904 0.927
C5 1.218 0.473 -0.009
H6 1.055 1.080 0.890
H7 1.190 1.138 -0.887
O8 0.201 -0.517 -0.115
N9 -1.385 1.159 0.079
H10 -0.762 1.840 -0.325
H11 -2.368 1.367 -0.008
C12 -1.107 -0.185 -0.012
O13 -1.950 -1.046 0.037

Atom - Atom Distances (Å)
  C1 H2 H3 H4 C5 H6 H7 O8 N9 H10 H11 C12 O13
C11.09371.09471.09361.51152.16382.15382.36644.17413.92885.17203.65344.5666
H21.09371.77761.77362.15393.07202.49772.61974.64184.41355.59143.94834.7314
H31.09471.77761.77802.15112.50682.48843.32484.79834.36915.80284.52205.5294
H41.09361.77361.77802.15192.50363.06492.62684.54984.50255.52473.87264.6201
C51.51152.15392.15112.15191.09751.10121.42322.69282.42643.69542.41583.5137
H62.16383.07202.50682.50361.09751.78302.07152.57212.31403.55022.66203.7788
H72.15382.49772.48843.06491.10121.78302.07662.74982.14873.67182.79093.9348
O82.36642.61973.32482.62681.42322.07152.07662.31512.55493.18741.35302.2205
N94.17414.64184.79834.54982.69282.57212.74982.31511.00821.00871.37502.2762
H103.92884.41354.36914.50252.42642.31402.14872.55491.00821.70442.07813.1423
H115.17205.59145.80285.52473.69543.55023.67183.18741.00871.70441.99972.4490
C123.65343.94834.52203.87262.41582.66202.79091.35301.37502.07811.99971.2064
O134.56664.73145.52944.62013.51373.77883.93482.22052.27623.14232.44901.2064

picture of Urethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C5 H6 111.073 C1 C5 H7 110.055
C1 C5 O8 107.445 H2 C1 H3 108.637
H2 C1 H4 108.364 H2 C1 C5 110.510
H3 C1 H4 108.684 H3 C1 C5 110.225
H4 C1 C5 110.363 C5 O8 C12 120.939
H6 C5 H7 108.370 H6 C5 O8 109.858
H7 C5 O8 110.041 O8 C12 N9 116.126
O8 C12 O13 120.251 N9 C12 O13 123.583
H10 N9 H11 115.355 H10 N9 C12 120.604
H11 N9 C12 113.153
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBE1PBE/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.535      
2 H 0.198      
3 H 0.178      
4 H 0.201      
5 C -0.113      
6 H 0.186      
7 H 0.160      
8 O -0.454      
9 N -0.809      
10 H 0.356      
11 H 0.372      
12 C 0.751      
13 O -0.492      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  2.339 4.284 -0.695 4.930
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -35.004 -5.855 1.135
y -5.855 -35.447 -1.592
z 1.135 -1.592 -35.763
Traceless
 xyz
x 0.601 -5.855 1.135
y -5.855 -0.063 -1.592
z 1.135 -1.592 -0.538
Polar
3z2-r2-1.076
x2-y20.443
xy-5.855
xz1.135
yz-1.592


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 8.229 0.334 -0.127
y 0.334 6.675 -0.077
z -0.127 -0.077 4.658


<r2> (average value of r2) Å2
<r2> 190.515
(<r2>)1/2 13.803