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All results from a given calculation for NH2COOC2H5 (Urethane)

using model chemistry: B3LYP/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 B3LYP/6-31G
 hartrees
Energy at 0K-323.641761
Energy at 298.15K-323.650805
Nuclear repulsion energy242.754916
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
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 3769 3626 37.70      
2 A 3638 3499 31.80      
3 A 3159 3039 23.86      
4 A 3142 3022 22.38      
5 A 3071 2954 38.62      
6 A 3063 2947 16.26      
7 A 3022 2907 30.69      
8 A 1773 1706 454.72      
9 A 1678 1615 110.43      
10 A 1561 1502 2.35      
11 A 1545 1487 9.17      
12 A 1529 1471 7.34      
13 A 1465 1409 7.09      
14 A 1427 1373 23.23      
15 A 1332 1281 384.98      
16 A 1317 1267 0.08      
17 A 1183 1138 5.67      
18 A 1159 1115 4.81      
19 A 1099 1058 8.36      
20 A 1065 1024 120.55      
21 A 986 949 49.51      
22 A 865 833 0.93      
23 A 826 794 16.83      
24 A 747 719 90.11      
25 A 580 557 168.92      
26 A 563 541 4.42      
27 A 540 519 8.91      
28 A 419 403 126.36      
29 A 372 358 0.93      
30 A 248 239 0.06      
31 A 206 198 3.76      
32 A 99 95 0.43      
33 A 69 67 0.02      

Unscaled Zero Point Vibrational Energy (zpe) 23757.9 cm-1
Scaled (by 0.962) Zero Point Vibrational Energy (zpe) 22855.1 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
ABC
0.28781 0.06840 0.05645

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/6-31G

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 2.590 -0.260 0.000
H2 2.664 -0.897 -0.886
H3 3.431 0.443 0.000
H4 2.664 -0.896 0.887
C5 1.272 0.494 -0.000
H6 1.177 1.124 0.895
H7 1.177 1.124 -0.895
O8 0.209 -0.520 -0.000
N9 -1.431 1.165 0.000
H10 -0.744 1.897 0.000
H11 -2.405 1.418 0.000
C12 -1.139 -0.178 0.000
O13 -1.994 -1.068 0.000

Atom - Atom Distances (Å)
  C1 H2 H3 H4 C5 H6 H7 O8 N9 H10 H11 C12 O13
C11.09351.09581.09351.51892.17122.17122.39554.26653.97115.27003.73034.6544
H21.09351.77941.77302.15813.07672.50842.63734.66984.49495.64313.97084.7446
H31.09581.77941.77942.15912.51872.51873.36274.91534.42055.91704.61195.6307
H41.09351.77301.77942.15812.50833.07672.63744.66944.49455.64263.97054.7443
C51.51892.15812.15912.15811.09841.09831.46982.78532.45593.79182.50353.6203
H62.17123.07672.51872.50831.09841.79032.10762.75772.25553.70402.80383.9568
H72.17122.50842.51873.07671.09831.79032.10752.75842.25623.70472.80423.9572
O82.39552.63733.36272.63741.46982.10762.10752.35132.59843.25441.39062.2695
N94.26654.66984.91534.66942.78532.75772.75842.35131.00491.00651.37442.3021
H103.97114.49494.42054.49452.45592.25552.25622.59841.00491.72942.11313.2178
H115.27005.64315.91705.64263.79183.70403.70473.25441.00651.72942.03782.5199
C123.73033.97084.61193.97052.50352.80382.80421.39061.37442.11312.03781.2333
O134.65444.74465.63074.74433.62033.95683.95722.26952.30213.21782.51991.2333

picture of Urethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C5 H6 111.090 C1 C5 H7 111.093
C1 C5 O8 106.540 H2 C1 H3 108.740
H2 C1 H4 108.334 H2 C1 C5 110.344
H3 C1 H4 108.741 H3 C1 C5 110.286
H4 C1 C5 110.343 C5 O8 C12 122.114
H6 C5 H7 109.177 H6 C5 O8 109.448
H7 C5 O8 109.444 O8 C12 N9 116.499
O8 C12 O13 119.626 N9 C12 O13 123.875
H10 N9 H11 118.588 H10 N9 C12 124.544
H11 N9 C12 116.868
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/6-31G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.405      
2 H 0.167      
3 H 0.138      
4 H 0.167      
5 C -0.042      
6 H 0.145      
7 H 0.145      
8 O -0.499      
9 N -0.736      
10 H 0.329      
11 H 0.345      
12 C 0.680      
13 O -0.433      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  2.574 5.155 0.000 5.761
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -35.495 -6.629 0.000
y -6.629 -35.787 -0.000
z 0.000 -0.000 -36.388
Traceless
 xyz
x 0.593 -6.629 0.000
y -6.629 0.154 -0.000
z 0.000 -0.000 -0.747
Polar
3z2-r2-1.494
x2-y20.293
xy-6.629
xz0.000
yz-0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 8.481 0.493 -0.001
y 0.493 6.740 0.000
z -0.001 0.000 4.292


<r2> (average value of r2) Å2
<r2> 197.687
(<r2>)1/2 14.060