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All results from a given calculation for NH2COOC2H5 (Urethane)

using model chemistry: HF/CEP-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/CEP-31G
 hartrees
Energy at 0K-61.473963
Energy at 298.15K-61.483307
Nuclear repulsion energy136.626346
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/CEP-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 4033 3635 63.21      
2 A 3876 3494 59.67      
3 A 3339 3010 85.37      
4 A 3315 2988 67.68      
5 A 3293 2969 42.08      
6 A 3240 2921 51.75      
7 A 3225 2907 50.71      
8 A 1842 1660 659.23      
9 A 1793 1616 227.10      
10 A 1663 1499 5.36      
11 A 1636 1474 6.10      
12 A 1617 1458 6.88      
13 A 1573 1418 14.37      
14 A 1545 1393 31.88      
15 A 1455 1312 508.74      
16 A 1417 1277 0.16      
17 A 1284 1158 11.06      
18 A 1246 1123 13.57      
19 A 1196 1078 156.53      
20 A 1192 1075 23.18      
21 A 1065 960 13.29      
22 A 911 821 0.08      
23 A 896 807 16.02      
24 A 826 744 149.69      
25 A 638 575 253.21      
26 A 599 540 6.56      
27 A 575 519 21.73      
28 A 462 416 107.19      
29 A 388 349 3.01      
30 A 255 230 0.58      
31 A 210 190 4.00      
32 A 99 90 0.12      
33 A 76 69 0.02      

Unscaled Zero Point Vibrational Energy (zpe) 25391.1 cm-1
Scaled (by 0.9014) Zero Point Vibrational Energy (zpe) 22887.5 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/CEP-31G
ABC
0.29001 0.06861 0.05666

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

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -2.568 -0.253 -0.000
H2 -2.638 -0.885 0.882
H3 -3.402 0.449 0.000
H4 -2.637 -0.885 -0.882
C5 -1.241 0.509 0.000
H6 -1.144 1.129 -0.889
H7 -1.144 1.128 0.890
O8 -0.187 -0.497 -0.000
N9 1.510 1.108 -0.000
H10 0.867 1.865 -0.000
H11 2.488 1.304 0.000
C12 1.147 -0.222 -0.000
O13 1.972 -1.132 0.000

Atom - Atom Distances (Å)
  C1 H2 H3 H4 C5 H6 H7 O8 N9 H10 H11 C12 O13
C11.08711.09051.08711.52972.17442.17432.39324.29894.03515.28963.71514.6235
H21.08711.77251.76402.16093.06992.50712.63324.68544.54115.64233.94244.6991
H31.09051.77251.77252.16142.51992.51993.35124.95594.49725.95104.59835.6012
H41.08711.76401.77252.16092.50703.06982.63314.68504.54075.64213.94234.6992
C51.52972.16092.16142.16091.08891.08891.45682.81582.50663.81262.49773.6075
H62.17443.06992.51992.50701.08891.77932.08592.79932.31853.74312.80483.9513
H72.17432.50712.51993.06981.08891.77932.08602.79982.31933.74342.80493.9512
O82.39322.63323.35122.63311.45682.08592.08602.33552.58633.22421.36222.2501
N94.29894.68544.95594.68502.81582.79932.79982.33550.99390.99691.37822.2869
H104.03514.54114.49724.54072.50662.31852.31932.58630.99391.71532.10593.1945
H115.28965.64235.95105.64213.81263.74313.74343.22420.99691.71532.03082.4901
C123.71513.94244.59833.94232.49772.80482.80491.36221.37822.10592.03081.2280
O134.62354.69915.60124.69923.60753.95133.95122.25012.28693.19452.49011.2280

picture of Urethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C5 H6 111.158 C1 C5 H7 111.155
C1 C5 O8 106.488 H2 C1 H3 108.975
H2 C1 H4 108.449 H2 C1 C5 110.189
H3 C1 H4 108.974 H3 C1 C5 110.031
H4 C1 C5 110.186 C5 O8 C12 124.713
H6 C5 H7 109.576 H6 C5 O8 109.189
H7 C5 O8 109.197 O8 C12 N9 116.910
O8 C12 O13 120.517 N9 C12 O13 122.574
H10 N9 H11 118.998 H10 N9 C12 124.387
H11 N9 C12 116.615
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/CEP-31G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.186      
2 H 0.126      
3 H 0.101      
4 H 0.126      
5 C -0.118      
6 H 0.122      
7 H 0.122      
8 O -0.327      
9 N -0.613      
10 H 0.375      
11 H 0.389      
12 C 0.135      
13 O -0.250      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -3.145 6.111 0.001 6.873
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -36.937 7.819 0.001
y 7.819 -37.831 0.001
z 0.001 0.001 -36.736
Traceless
 xyz
x 0.347 7.819 0.001
y 7.819 -0.994 0.001
z 0.001 0.001 0.647
Polar
3z2-r21.294
x2-y20.894
xy7.819
xz0.001
yz0.001


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 7.428 -0.553 0.000
y -0.553 6.183 -0.000
z 0.000 -0.000 4.289


<r2> (average value of r2) Å2
<r2> 160.419
(<r2>)1/2 12.666