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All results from a given calculation for NH2COOC2H5 (Urethane)

using model chemistry: HF/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 HF/6-31G**
 hartrees
Energy at 0K-321.887296
Energy at 298.15K-321.896728
Nuclear repulsion energy248.787390
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 HF/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 3981 3593 57.54      
2 A 3852 3477 47.31      
3 A 3288 2967 39.94      
4 A 3271 2952 35.00      
5 A 3240 2925 25.48      
6 A 3199 2887 19.87      
7 A 3178 2869 49.77      
8 A 2019 1822 709.06      
9 A 1788 1614 166.68      
10 A 1665 1502 2.17      
11 A 1629 1470 0.82      
12 A 1611 1454 4.00      
13 A 1578 1424 14.70      
14 A 1540 1390 47.13      
15 A 1490 1345 456.65      
16 A 1428 1289 1.13      
17 A 1291 1165 6.81      
18 A 1275 1151 88.63      
19 A 1225 1106 100.07      
20 A 1199 1082 8.30      
21 A 1067 964 5.22      
22 A 944 852 14.55      
23 A 900 812 1.29      
24 A 871 786 70.95      
25 A 630 569 24.16      
26 A 603 544 8.90      
27 A 580 523 94.49      
28 A 409 369 9.25      
29 A 383 346 169.07      
30 A 280 253 0.81      
31 A 231 209 2.44      
32 A 106 96 0.56      
33 A 92 83 3.46      

Unscaled Zero Point Vibrational Energy (zpe) 25420.6 cm-1
Scaled (by 0.9026) Zero Point Vibrational Energy (zpe) 22944.7 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 HF/6-31G**
ABC
0.29969 0.07196 0.05948

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

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 2.541 -0.249 0.043
H2 2.676 -0.823 -0.866
H3 3.359 0.458 0.133
H4 2.573 -0.928 0.886
C5 1.220 0.489 0.010
H6 1.073 1.061 0.920
H7 1.193 1.171 -0.837
O8 0.197 -0.480 -0.119
N9 -1.421 1.133 0.063
H10 -0.823 1.832 -0.303
H11 -2.397 1.312 0.006
C12 -1.097 -0.191 -0.012
O13 -1.908 -1.058 0.040

Atom - Atom Distances (Å)
  C1 H2 H3 H4 C5 H6 H7 O8 N9 H10 H11 C12 O13
C11.08351.08531.08331.51392.15432.14642.36054.19633.97045.17883.63934.5219
H21.08351.76261.75822.14763.05142.48582.61154.63454.42825.57283.92044.6786
H31.08531.76261.76312.14332.49212.47813.30784.82844.42335.82054.50605.4819
H41.08331.75821.76312.14632.49173.04592.61764.56894.53455.52153.84944.5615
C51.51392.14762.14332.14631.08431.08741.41502.71872.46423.70902.41503.4897
H62.15433.05142.49212.49171.08431.76372.05472.63802.38393.59672.67323.7618
H72.14642.48582.47813.04591.08741.76372.05762.76502.18703.69012.78953.9183
O82.36052.61153.30782.61761.41502.05472.05762.29232.53423.15561.33112.1889
N94.19634.63454.82844.56892.71872.63802.76502.29230.99130.99361.36462.2442
H103.97044.42824.42334.53452.46422.38392.18702.53420.99131.68692.06253.1065
H115.17885.57285.82055.52153.70903.59673.69013.15560.99361.68691.98682.4202
C123.63933.92044.50603.84942.41502.67322.78951.33111.36462.06251.98681.1881
O134.52194.67865.48194.56153.48973.76183.91832.18892.24423.10652.42021.1881

picture of Urethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C5 H6 110.943 C1 C5 H7 110.120
C1 C5 O8 107.357 H2 C1 H3 108.730
H2 C1 H4 108.467 H2 C1 C5 110.454
H3 C1 H4 108.779 H3 C1 C5 110.002
H4 C1 C5 110.360 C5 O8 C12 123.126
H6 C5 H7 108.603 H6 C5 O8 109.884
H7 C5 O8 109.929 O8 C12 N9 116.500
O8 C12 O13 120.554 N9 C12 O13 122.930
H10 N9 H11 116.392 H10 N9 C12 121.385
H11 N9 C12 113.883
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/6-31G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.346 -0.359    
2 H 0.140 0.112    
3 H 0.117 0.066    
4 H 0.143 0.115    
5 C 0.081 0.550    
6 H 0.131 -0.042    
7 H 0.105 -0.059    
8 O -0.621 -0.601    
9 N -0.771 -1.023    
10 H 0.307 0.389    
11 H 0.326 0.417    
12 C 0.975 1.113    
13 O -0.588 -0.677    


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  2.577 4.680 -0.607 5.377
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -35.742 -6.202 1.154
y -6.202 -36.296 -1.473
z 1.154 -1.473 -35.967
Traceless
 xyz
x 0.390 -6.202 1.154
y -6.202 -0.442 -1.473
z 1.154 -1.473 0.052
Polar
3z2-r20.104
x2-y20.554
xy-6.202
xz1.154
yz-1.473


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 7.366 0.358 -0.110
y 0.358 6.223 -0.078
z -0.110 -0.078 4.541


<r2> (average value of r2) Å2
<r2> 189.503
(<r2>)1/2 13.766