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All results from a given calculation for NH2COOC2H5 (Urethane)

using model chemistry: B3LYP/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 B3LYP/STO-3G
 hartrees
Energy at 0K-319.481223
Energy at 298.15K-319.489782
Nuclear repulsion energy238.160269
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 B3LYP/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 3728 3327 0.39      
2 A 3534 3153 2.13      
3 A 3493 3117 0.47      
4 A 3486 3111 0.32      
5 A 3380 3017 5.09      
6 A 3319 2962 0.32      
7 A 3264 2913 8.48      
8 A 1882 1680 112.44      
9 A 1783 1591 25.02      
10 A 1683 1502 2.47      
11 A 1668 1489 3.28      
12 A 1657 1478 4.92      
13 A 1565 1397 2.22      
14 A 1471 1312 25.09      
15 A 1362 1216 29.64      
16 A 1347 1202 140.43      
17 A 1222 1091 10.22      
18 A 1209 1079 8.95      
19 A 1170 1044 94.78      
20 A 1120 1000 8.60      
21 A 1016 906 1.93      
22 A 885 789 19.20      
23 A 868 775 43.25      
24 A 757 675 126.16      
25 A 588 525 47.41      
26 A 528 471 1.96      
27 A 513 458 2.73      
28 A 375 335 12.17      
29 A 345 308 34.76      
30 A 233 208 0.96      
31 A 203 181 0.06      
32 A 118 105 0.24      
33 A 88 79 2.10      

Unscaled Zero Point Vibrational Energy (zpe) 24930.3 cm-1
Scaled (by 0.8924) Zero Point Vibrational Energy (zpe) 22247.8 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 B3LYP/STO-3G
ABC
0.26459 0.06787 0.05571

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/STO-3G

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -2.611 -0.223 -0.118
H2 -2.827 -0.900 0.721
H3 -3.397 0.547 -0.166
H4 -2.624 -0.803 -1.053
C5 -1.225 0.455 0.077
H6 -0.994 1.135 -0.771
H7 -1.230 1.059 1.013
O8 -0.220 -0.632 0.165
N9 1.329 1.269 -0.151
H10 0.895 1.792 0.657
H11 2.369 1.435 -0.082
C12 1.137 -0.196 0.020
O13 2.057 -1.039 -0.057

Atom - Atom Distances (Å)
  C1 H2 H3 H4 C5 H6 H7 O8 N9 H10 H11 C12 O13
C11.10041.10101.10021.55532.21032.19792.44214.21364.11725.24883.75044.7397
H21.10041.79051.78872.19553.11942.54482.67894.76914.59415.75304.08654.9480
H31.10101.79051.79062.18762.54742.51983.40474.78164.54425.83494.59815.6814
H41.10021.78871.79062.19482.54833.11122.70034.55394.69465.55713.95774.7922
C51.55532.19552.18762.19481.11081.11401.48322.69062.57233.72852.45063.6089
H62.21033.11942.54742.54831.11081.80082.14422.40812.45683.44572.63363.8137
H72.19792.54482.51983.11121.11401.80082.14432.81932.27563.78032.85694.0436
O82.44212.67893.40472.70031.48322.14422.14432.47332.71303.32221.43282.3243
N94.21364.76914.78164.55392.69062.40812.81932.47331.05551.05501.48782.4218
H104.11724.59414.54424.69462.57232.45682.27562.71301.05551.68682.10123.1418
H115.24885.75305.83495.55713.72853.44573.78033.32221.05501.68682.04652.4929
C123.75044.08654.59813.95772.45062.63362.85691.43281.48782.10122.04651.2504
O134.73974.94805.68144.79223.60893.81374.04362.32432.42183.14182.49291.2504

picture of Urethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C5 H6 110.899 C1 C5 H7 109.748
C1 C5 O8 106.949 H2 C1 H3 108.848
H2 C1 H4 108.737 H2 C1 C5 110.347
H3 C1 H4 108.870 H3 C1 C5 109.700
H4 C1 C5 110.303 C5 O8 C12 114.353
H6 C5 H7 108.083 H6 C5 O8 110.680
H7 C5 O8 110.495 O8 C12 N9 115.729
O8 C12 O13 119.903 N9 C12 O13 124.142
H10 N9 H11 106.119 H10 N9 C12 110.264
H11 N9 C12 105.930
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/STO-3G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.220      
2 H 0.085      
3 H 0.081      
4 H 0.086      
5 C -0.041      
6 H 0.093      
7 H 0.069      
8 O -0.174      
9 N -0.378      
10 H 0.176      
11 H 0.184      
12 C 0.262      
13 O -0.222      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -1.275 2.612 1.181 3.137
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -32.103 3.647 1.524
y 3.647 -34.147 2.341
z 1.524 2.341 -32.599
Traceless
 xyz
x 1.270 3.647 1.524
y 3.647 -1.796 2.341
z 1.524 2.341 0.526
Polar
3z2-r21.052
x2-y22.044
xy3.647
xz1.524
yz2.341


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.817 -0.332 -0.296
y -0.332 4.083 0.164
z -0.296 0.164 2.292


<r2> (average value of r2) Å2
<r2> 198.749
(<r2>)1/2 14.098