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All results from a given calculation for NH2COOC2H5 (Urethane)

using model chemistry: B3LYP/6-31G(2df,p)

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/6-31G(2df,p)
 hartrees
Energy at 0K-323.775385
Energy at 298.15K-323.784497
Nuclear repulsion energy246.285479
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/6-31G(2df,p)
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 3715 3585 35.91      
2 A 3599 3473 23.69      
3 A 3133 3023 20.13      
4 A 3125 3016 18.91      
5 A 3050 2944 13.51      
6 A 3050 2943 23.93      
7 A 2987 2883 40.88      
8 A 1855 1790 458.84      
9 A 1625 1568 115.97      
10 A 1524 1470 1.41      
11 A 1500 1447 3.06      
12 A 1484 1432 4.56      
13 A 1425 1375 6.72      
14 A 1405 1356 14.73      
15 A 1336 1289 350.67      
16 A 1303 1257 1.97      
17 A 1181 1139 4.63      
18 A 1153 1113 24.33      
19 A 1102 1063 96.50      
20 A 1092 1054 55.05      
21 A 988 953 12.88      
22 A 858 828 11.89      
23 A 833 804 0.66      
24 A 776 749 29.96      
25 A 576 556 25.81      
26 A 553 534 4.29      
27 A 534 515 72.17      
28 A 395 381 101.96      
29 A 376 363 17.96      
30 A 254 246 0.44      
31 A 215 207 2.26      
32 A 112 108 0.87      
33 A 88 85 1.10      

Unscaled Zero Point Vibrational Energy (zpe) 23600.3 cm-1
Scaled (by 0.965) Zero Point Vibrational Energy (zpe) 22774.3 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 B3LYP/6-31G(2df,p)
ABC
0.29348 0.07082 0.05846

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/6-31G(2df,p)

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 2.559 -0.246 0.047
H2 2.700 -0.862 -0.844
H3 3.377 0.478 0.105
H4 2.603 -0.896 0.925
C5 1.225 0.477 -0.011
H6 1.071 1.092 0.885
H7 1.188 1.134 -0.892
O8 0.200 -0.517 -0.099
N9 -1.398 1.160 0.078
H10 -0.768 1.842 -0.309
H11 -2.378 1.366 -0.028
C12 -1.114 -0.187 -0.010
O13 -1.953 -1.049 0.030

Atom - Atom Distances (Å)
  C1 H2 H3 H4 C5 H6 H7 O8 N9 H10 H11 C12 O13
C11.09301.09401.09301.51842.16882.16032.37934.19953.94435.19453.67404.5830
H21.09301.77661.77272.15993.07582.50482.63224.66224.43065.60583.96264.7384
H31.09401.77661.77702.15512.50972.49323.33554.82334.38315.82494.54145.5449
H41.09301.77271.77702.15842.50943.07002.63994.57744.51495.55343.89794.6459
C51.51842.15992.15512.15841.09691.10041.43032.71182.43423.71152.43143.5255
H62.16883.07582.50972.50941.09691.78132.07712.59862.31763.57912.68553.8028
H72.16032.50482.49323.07001.10041.78132.08132.76232.16063.67712.79743.9350
O82.37932.63223.33552.63991.43032.07712.08132.32292.55863.19321.35742.2213
N94.19954.66224.82334.57742.71182.59862.76232.32291.00631.00751.37982.2786
H103.94434.43064.38314.51492.43422.31762.16062.55861.00631.70292.08083.1436
H115.19455.60585.82495.55343.71153.57913.67713.19321.00751.70292.00292.4532
C123.67403.96264.54143.89792.43142.68552.79741.35741.37982.08082.00291.2035
O134.58304.73845.54494.64593.52553.80283.93502.22132.27863.14362.45321.2035

picture of Urethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C5 H6 111.023 C1 C5 H7 110.131
C1 C5 O8 107.545 H2 C1 H3 108.653
H2 C1 H4 108.372 H2 C1 C5 110.539
H3 C1 H4 108.692 H3 C1 C5 110.104
H4 C1 C5 110.426 C5 O8 C12 121.404
H6 C5 H7 108.320 H6 C5 O8 109.853
H7 C5 O8 109.969 O8 C12 N9 116.122
O8 C12 O13 120.197 N9 C12 O13 123.641
H10 N9 H11 115.477 H10 N9 C12 120.595
H11 N9 C12 113.144
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/6-31G(2df,p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.385      
2 H 0.138      
3 H 0.121      
4 H 0.140      
5 C -0.058      
6 H 0.120      
7 H 0.102      
8 O -0.229      
9 N -0.567      
10 H 0.257      
11 H 0.269      
12 C 0.467      
13 O -0.374      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  2.298 4.076 -0.603 4.717
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -35.243 -5.713 0.986
y -5.713 -35.474 -1.389
z 0.986 -1.389 -35.560
Traceless
 xyz
x 0.275 -5.713 0.986
y -5.713 -0.073 -1.389
z 0.986 -1.389 -0.201
Polar
3z2-r2-0.403
x2-y20.232
xy-5.713
xz0.986
yz-1.389


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 8.826 0.237 -0.078
y 0.237 7.050 -0.073
z -0.078 -0.073 5.109


<r2> (average value of r2) Å2
<r2> 191.869
(<r2>)1/2 13.852