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All results from a given calculation for NH2COOC2H5 (Urethane)

using model chemistry: HF/STO-3G

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/STO-3G
 hartrees
Energy at 0K-317.709205
Energy at 298.15K-317.718144
Nuclear repulsion energy242.820035
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/STO-3G
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 4135 3376 2.12      
2 A 3943 3219 5.76      
3 A 3765 3074 0.23      
4 A 3761 3071 0.21      
5 A 3682 3006 4.38      
6 A 3577 2921 0.27      
7 A 3563 2909 6.04      
8 A 2129 1738 172.72      
9 A 1952 1594 28.57      
10 A 1835 1499 3.23      
11 A 1815 1482 1.68      
12 A 1814 1481 3.55      
13 A 1732 1415 9.39      
14 A 1658 1353 48.13      
15 A 1553 1268 224.23      
16 A 1511 1234 1.73      
17 A 1389 1135 22.39      
18 A 1350 1102 11.99      
19 A 1324 1081 41.43      
20 A 1270 1037 8.47      
21 A 1132 924 1.29      
22 A 988 807 80.07      
23 A 953 778 6.22      
24 A 914 746 97.80      
25 A 677 553 47.67      
26 A 586 478 13.92      
27 A 580 474 4.52      
28 A 398 325 1.70      
29 A 343 280 57.47      
30 A 250 204 2.14      
31 A 222 181 0.01      
32 A 95 78 1.21      
33 A 68 56 2.23      

Unscaled Zero Point Vibrational Energy (zpe) 27480.7 cm-1
Scaled (by 0.8165) Zero Point Vibrational Energy (zpe) 22438.0 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/STO-3G
ABC
0.27580 0.07000 0.05766

See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/STO-3G

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -2.582 -0.213 0.089
H2 -2.606 -0.921 0.911
H3 -3.352 0.536 0.248
H4 -2.794 -0.744 -0.834
C5 -1.201 0.468 0.009
H6 -1.199 1.197 -0.810
H7 -0.990 1.008 0.937
O8 -0.225 -0.564 -0.225
N9 1.385 1.219 0.109
H10 1.013 1.745 -0.693
H11 2.406 1.341 0.121
C12 1.106 -0.203 -0.018
O13 1.961 -1.061 0.085

Atom - Atom Distances (Å)
  C1 H2 H3 H4 C5 H6 H7 O8 N9 H10 H11 C12 O13
C11.08551.08591.08561.54162.16972.17852.40374.21734.16745.22473.68984.6217
H21.08551.76651.76382.17173.07032.51692.66194.59854.77235.55533.89314.6429
H31.08591.76651.76632.16522.48842.50573.34864.78784.62585.81564.52695.5504
H41.08561.76381.76632.17192.51223.07622.64674.71244.55075.68374.02154.8539
C51.54162.17172.16522.17191.09641.09461.43982.69462.65053.71322.40313.5133
H62.16973.07032.48842.51221.09641.77012.09572.74262.28173.72632.81083.9856
H72.17852.51692.50573.07621.09461.77012.09942.52352.68523.50842.60213.7031
O82.40372.66193.34862.64671.43982.09572.09942.42522.66153.26691.39472.2632
N94.21734.59854.78784.71242.69462.74262.52352.42521.02911.02871.45432.3515
H104.16744.77234.62584.55072.65052.28172.68522.66151.02911.66362.06393.0626
H115.22475.55535.81565.68373.71323.72633.50843.26691.02871.66362.02322.4431
C123.68983.89314.52694.02152.40312.81082.60211.39471.45432.06392.02321.2156
O134.62174.64295.55044.85393.51333.98563.70312.26322.35153.06262.44311.2156

picture of Urethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C5 H6 109.509 C1 C5 H7 110.306
C1 C5 O8 107.410 H2 C1 H3 108.886
H2 C1 H4 108.666 H2 C1 C5 110.302
H3 C1 H4 108.866 H3 C1 C5 109.769
H4 C1 C5 110.314 C5 O8 C12 115.930
H6 C5 H7 107.779 H6 C5 O8 110.710
H7 C5 O8 111.131 O8 C12 N9 116.681
O8 C12 O13 120.068 N9 C12 O13 123.218
H10 N9 H11 107.885 H10 N9 C12 111.265
H11 N9 C12 107.907
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/STO-3G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.180      
2 H 0.072      
3 H 0.067      
4 H 0.071      
5 C 0.020      
6 H 0.053      
7 H 0.075      
8 O -0.253      
9 N -0.411      
10 H 0.176      
11 H 0.185      
12 C 0.394      
13 O -0.270      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -1.056 2.715 -1.024 3.088
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -32.497 3.711 -1.823
y 3.711 -35.378 -2.306
z -1.823 -2.306 -32.588
Traceless
 xyz
x 1.486 3.711 -1.823
y 3.711 -2.836 -2.306
z -1.823 -2.306 1.350
Polar
3z2-r22.700
x2-y22.881
xy3.711
xz-1.823
yz-2.306


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.926 -0.468 0.285
y -0.468 3.674 -0.219
z 0.285 -0.219 2.217


<r2> (average value of r2) Å2
<r2> 193.554
(<r2>)1/2 13.912