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All results from a given calculation for NH2COOC2H5 (Urethane)

using model chemistry: mPW1PW91/6-31G(2df,p)

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A
Energy calculated at mPW1PW91/6-31G(2df,p)
 hartrees
Energy at 0K-323.695570
Energy at 298.15K-323.704730
Nuclear repulsion energy247.527797
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 mPW1PW91/6-31G(2df,p)
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 3769 3598 44.37      
2 A 3647 3482 27.73      
3 A 3170 3027 15.91      
4 A 3164 3021 15.42      
5 A 3078 2938 23.13      
6 A 3077 2937 12.33      
7 A 3013 2877 38.90      
8 A 1887 1802 482.56      
9 A 1630 1556 137.24      
10 A 1526 1457 1.32      
11 A 1502 1434 3.19      
12 A 1485 1418 5.61      
13 A 1434 1369 14.03      
14 A 1405 1342 52.23      
15 A 1361 1299 317.92      
16 A 1310 1251 1.09      
17 A 1184 1131 4.73      
18 A 1171 1118 57.91      
19 A 1130 1079 72.01      
20 A 1102 1052 24.57      
21 A 1005 960 11.28      
22 A 875 835 11.17      
23 A 835 797 0.72      
24 A 791 755 30.86      
25 A 582 555 23.01      
26 A 559 534 6.80      
27 A 535 511 66.49      
28 A 392 374 83.40      
29 A 378 361 47.26      
30 A 257 245 0.40      
31 A 217 207 2.43      
32 A 116 111 0.77      
33 A 90 86 1.19      

Unscaled Zero Point Vibrational Energy (zpe) 23838.1 cm-1
Scaled (by 0.9547) Zero Point Vibrational Energy (zpe) 22758.3 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 mPW1PW91/6-31G(2df,p)
ABC
0.29620 0.07167 0.05914

See section I.F.4 to change rotational constant units
Geometric Data calculated at mPW1PW91/6-31G(2df,p)

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 2.544 -0.244 0.049
H2 2.687 -0.865 -0.838
H3 3.359 0.481 0.102
H4 2.589 -0.887 0.930
C5 1.214 0.470 -0.014
H6 1.061 1.091 0.876
H7 1.178 1.122 -0.899
O8 0.198 -0.519 -0.096
N9 -1.383 1.156 0.078
H10 -0.748 1.836 -0.299
H11 -2.360 1.367 -0.026
C12 -1.106 -0.185 -0.009
O13 -1.947 -1.041 0.028

Atom - Atom Distances (Å)
  C1 H2 H3 H4 C5 H6 H7 O8 N9 H10 H11 C12 O13
C11.09151.09231.09141.51182.16082.15222.36654.16973.90975.16273.65164.5617
H21.09151.77411.77022.15253.06762.49592.62034.63594.40285.57813.94224.7181
H31.09231.77411.77452.14862.50062.48403.32114.78984.34295.78864.51625.5207
H41.09141.77021.77452.15102.50053.06162.62794.54784.47905.52183.87724.6279
C51.51182.15252.14862.15101.09621.09961.41982.68732.40683.68432.41083.5039
H62.16083.06762.50062.50051.09621.77992.06872.57162.28183.54842.66613.7830
H72.15222.49592.48403.06161.09961.77992.07282.74132.13983.65242.77853.9123
O82.36652.62033.32112.62791.41982.06872.07282.31012.54573.17871.34932.2117
N94.16974.63594.78984.54782.68732.57162.74132.31011.00371.00481.37282.2695
H103.90974.40284.34294.47902.40682.28182.13982.54571.00371.70142.07343.1344
H115.16275.57815.78865.52183.68433.54843.65243.17871.00481.70141.99512.4435
C123.65163.94224.51623.87722.41082.66612.77851.34931.37282.07341.99511.2003
O134.56174.71815.52074.62793.50393.78303.91232.21172.26953.13442.44351.2003

picture of Urethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C5 H6 110.893 C1 C5 H7 110.003
C1 C5 O8 107.612 H2 C1 H3 108.661
H2 C1 H4 108.374 H2 C1 C5 110.508
H3 C1 H4 108.701 H3 C1 C5 110.150
H4 C1 C5 110.391 C5 O8 C12 121.042
H6 C5 H7 108.308 H6 C5 O8 109.952
H7 C5 O8 110.076 O8 C12 N9 116.125
O8 C12 O13 120.210 N9 C12 O13 123.629
H10 N9 H11 115.794 H10 N9 C12 120.700
H11 N9 C12 113.190
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at mPW1PW91/6-31G(2df,p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.457      
2 H 0.165      
3 H 0.148      
4 H 0.167      
5 C -0.110      
6 H 0.147      
7 H 0.129      
8 O -0.261      
9 N -0.628      
10 H 0.281      
11 H 0.293      
12 C 0.530      
13 O -0.402      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  2.344 4.119 -0.599 4.777
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -34.998 -5.740 0.947
y -5.740 -35.120 -1.376
z 0.947 -1.376 -35.387
Traceless
 xyz
x 0.255 -5.740 0.947
y -5.740 0.073 -1.376
z 0.947 -1.376 -0.328
Polar
3z2-r2-0.656
x2-y20.122
xy-5.740
xz0.947
yz-1.376


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 8.665 0.233 -0.080
y 0.233 6.979 -0.065
z -0.080 -0.065 5.103


<r2> (average value of r2) Å2
<r2> 189.788
(<r2>)1/2 13.776