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All results from a given calculation for NH2COOC2H5 (Urethane)

using model chemistry: mPW1PW91/6-31G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A
Energy calculated at mPW1PW91/6-31G
 hartrees
Energy at 0K-323.557094
Energy at 298.15K-323.566229
Nuclear repulsion energy244.059221
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
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 3818 3614 47.14      
2 A 3683 3486 37.39      
3 A 3197 3027 18.68      
4 A 3181 3011 18.53      
5 A 3103 2937 35.99      
6 A 3091 2926 14.35      
7 A 3048 2885 29.81      
8 A 1806 1710 484.36      
9 A 1691 1601 125.04      
10 A 1567 1484 2.43      
11 A 1551 1469 9.82      
12 A 1534 1452 8.99      
13 A 1472 1393 7.83      
14 A 1441 1364 51.76      
15 A 1361 1289 377.11      
16 A 1329 1258 0.10      
17 A 1194 1130 6.48      
18 A 1174 1111 6.18      
19 A 1117 1058 17.46      
20 A 1099 1040 109.59      
21 A 1011 957 31.25      
22 A 871 825 1.01      
23 A 848 802 16.88      
24 A 764 723 106.10      
25 A 598 566 193.70      
26 A 568 538 4.81      
27 A 551 521 8.86      
28 A 434 411 107.48      
29 A 377 357 1.12      
30 A 249 236 0.11      
31 A 208 197 4.02      
32 A 105 99 0.32      
33 A 71 67 0.00      

Unscaled Zero Point Vibrational Energy (zpe) 24054.9 cm-1
Scaled (by 0.9466) Zero Point Vibrational Energy (zpe) 22770.4 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 mPW1PW91/6-31G
ABC
0.29041 0.06928 0.05714

See section I.F.4 to change rotational constant units
Geometric Data calculated at mPW1PW91/6-31G

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 2.574 -0.260 0.000
H2 2.646 -0.896 -0.884
H3 3.414 0.440 -0.000
H4 2.646 -0.895 0.885
C5 1.262 0.491 -0.000
H6 1.168 1.120 0.894
H7 1.168 1.119 -0.894
O8 0.207 -0.516 -0.000
N9 -1.420 1.160 0.000
H10 -0.732 1.889 0.000
H11 -2.391 1.414 0.000
C12 -1.131 -0.177 0.000
O13 -1.984 -1.063 0.000

Atom - Atom Distances (Å)
  C1 H2 H3 H4 C5 H6 H7 O8 N9 H10 H11 C12 O13
C11.09151.09361.09151.51192.16302.16322.38034.23833.94365.23923.70564.6279
H21.09151.77631.76952.14973.06732.49912.62184.64094.46715.61143.94524.7168
H31.09361.77631.77632.15272.51082.51073.34604.88654.39215.88544.58625.6029
H41.09151.76951.77632.14982.49873.06742.62234.64074.46675.61123.94534.7172
C51.51192.14972.15272.14981.09691.09701.45802.76332.43563.76712.48393.5981
H62.16303.06732.51082.49871.09691.78802.09722.73782.23653.68082.78653.9363
H72.16322.49912.51073.06741.09701.78802.09712.73812.23723.68122.78673.9364
O82.38032.62183.34602.62231.45802.09722.09712.33582.58283.23671.38042.2583
N94.23834.64094.88654.64072.76332.73782.73812.33581.00231.00381.36772.2928
H103.94364.46714.39214.46672.43562.23652.23722.58281.00231.72502.10463.2063
H115.23925.61145.88545.61123.76713.68083.68123.23671.00381.72502.02962.5098
C123.70563.94524.58623.94532.48392.78652.78671.38041.36772.10462.02961.2295
O134.62794.71685.60294.71723.59813.93633.93642.25832.29283.20632.50981.2295

picture of Urethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C5 H6 111.017 C1 C5 H7 111.027
C1 C5 O8 106.528 H2 C1 H3 108.763
H2 C1 H4 108.306 H2 C1 C5 110.280
H3 C1 H4 108.762 H3 C1 C5 110.394
H4 C1 C5 110.282 C5 O8 C12 122.088
H6 C5 H7 109.179 H6 C5 O8 109.530
H7 C5 O8 109.516 O8 C12 N9 116.410
O8 C12 O13 119.717 N9 C12 O13 123.873
H10 N9 H11 118.601 H10 N9 C12 124.531
H11 N9 C12 116.868
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at mPW1PW91/6-31G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.489      
2 H 0.197      
3 H 0.167      
4 H 0.197      
5 C -0.101      
6 H 0.175      
7 H 0.175      
8 O -0.521      
9 N -0.800      
10 H 0.355      
11 H 0.370      
12 C 0.729      
13 O -0.454      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  2.638 5.241 0.001 5.867
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -35.323 -6.685 -0.001
y -6.685 -35.609 0.001
z -0.001 0.001 -36.288
Traceless
 xyz
x 0.626 -6.685 -0.001
y -6.685 0.196 0.001
z -0.001 0.001 -0.822
Polar
3z2-r2-1.644
x2-y20.286
xy-6.685
xz-0.001
yz0.001


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 8.253 0.494 0.000
y 0.494 6.643 0.000
z 0.000 0.000 4.280


<r2> (average value of r2) Å2
<r2> 195.525
(<r2>)1/2 13.983