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All results from a given calculation for NH2COOC2H5 (Urethane)

using model chemistry: B3PW91/6-311G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A
Energy calculated at B3PW91/6-311G*
 hartrees
Energy at 0K-323.705048
Energy at 298.15K-323.714160
Nuclear repulsion energy246.814232
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 B3PW91/6-311G*
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 3739 3600 32.91      
2 A 3623 3488 20.89      
3 A 3141 3024 26.90      
4 A 3131 3014 24.64      
5 A 3062 2948 28.06      
6 A 3055 2941 17.06      
7 A 3002 2890 47.63      
8 A 1864 1794 537.88      
9 A 1668 1606 139.80      
10 A 1537 1479 1.39      
11 A 1513 1457 4.78      
12 A 1496 1440 8.59      
13 A 1440 1386 8.31      
14 A 1411 1358 36.12      
15 A 1348 1298 374.88      
16 A 1322 1273 2.40      
17 A 1186 1142 5.36      
18 A 1165 1122 28.68      
19 A 1116 1075 88.41      
20 A 1101 1060 63.74      
21 A 997 960 16.48      
22 A 867 835 14.40      
23 A 843 812 0.78      
24 A 780 751 31.44      
25 A 579 558 16.73      
26 A 555 535 3.49      
27 A 534 514 67.92      
28 A 383 369 10.27      
29 A 353 340 168.79      
30 A 265 255 0.38      
31 A 217 209 2.96      
32 A 112 108 0.62      
33 A 89 86 1.68      

Unscaled Zero Point Vibrational Energy (zpe) 23747.0 cm-1
Scaled (by 0.9627) Zero Point Vibrational Energy (zpe) 22861.3 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 B3PW91/6-311G*
ABC
0.29488 0.07116 0.05873

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3PW91/6-311G*

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 2.551 -0.245 0.047
H2 2.694 -0.862 -0.842
H3 3.371 0.475 0.106
H4 2.596 -0.894 0.924
C5 1.223 0.474 -0.011
H6 1.072 1.089 0.883
H7 1.186 1.127 -0.895
O8 0.200 -0.517 -0.097
N9 -1.393 1.156 0.070
H10 -0.755 1.852 -0.276
H11 -2.371 1.378 -0.009
C12 -1.112 -0.187 -0.010
O13 -1.951 -1.046 0.030

Atom - Atom Distances (Å)
  C1 H2 H3 H4 C5 H6 H7 O8 N9 H10 H11 C12 O13
C11.09201.09351.09191.51082.16012.15252.37064.18523.92745.18273.66404.5724
H21.09201.77361.76962.15393.06872.49682.62594.64864.42475.60083.95474.7301
H31.09351.77361.77382.15102.50362.49013.32884.81254.36565.81364.53355.5358
H41.09191.76961.77382.15192.50143.06302.63134.56554.49475.54103.88904.6364
C51.51082.15392.15102.15191.09621.09951.42702.70482.42463.70612.42723.5197
H62.16013.06872.50362.50141.09621.78242.07362.59632.29333.56812.68233.7979
H72.15252.49682.49013.06301.09951.78242.07682.75362.16193.67412.79123.9268
O82.37062.62593.32882.63131.42702.07362.07682.31642.56033.19551.35632.2189
N94.18524.64864.81254.56552.70482.59632.75362.31641.00541.00591.37392.2724
H103.92744.42474.36564.49472.42462.29332.16192.56031.00541.70532.08633.1502
H115.18275.60085.81365.54103.70613.56813.67413.19551.00591.70532.00812.4611
C123.66403.95474.53353.88902.42722.68232.79121.35631.37392.08632.00811.2017
O134.57244.73015.53584.63643.51973.79793.92682.21892.27243.15022.46111.2017

picture of Urethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C5 H6 110.906 C1 C5 H7 110.099
C1 C5 O8 107.557 H2 C1 H3 108.491
H2 C1 H4 108.251 H2 C1 C5 110.657
H3 C1 H4 108.519 H3 C1 C5 110.343
H4 C1 C5 110.508 C5 O8 C12 121.368
H6 C5 H7 108.541 H6 C5 O8 109.838
H7 C5 O8 109.896 O8 C12 N9 116.082
O8 C12 O13 120.194 N9 C12 O13 123.692
H10 N9 H11 115.959 H10 N9 C12 121.768
H11 N9 C12 114.199
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3PW91/6-311G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.656      
2 H 0.239      
3 H 0.222      
4 H 0.241      
5 C -0.288      
6 H 0.226      
7 H 0.205      
8 O -0.300      
9 N -0.806      
10 H 0.360      
11 H 0.368      
12 C 0.563      
13 O -0.372      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  2.325 4.438 -0.596 5.045
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -35.486 -5.952 0.949
y -5.952 -35.731 -1.400
z 0.949 -1.400 -36.127
Traceless
 xyz
x 0.443 -5.952 0.949
y -5.952 0.075 -1.400
z 0.949 -1.400 -0.518
Polar
3z2-r2-1.036
x2-y20.245
xy-5.952
xz0.949
yz-1.400


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


<r2> (average value of r2) Å2
<r2> 191.333
(<r2>)1/2 13.832