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All results from a given calculation for NH2COOC2H5 (Urethane)

using model chemistry: B3LYP/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 B3LYP/CEP-31G*
 hartrees
Energy at 0K-63.035167
Energy at 298.15K-63.044210
Nuclear repulsion energy136.425404
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/CEP-31G*
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
(Å4/u)
Dep P Dep U
1 A 3692 3565 30.98      
2 A 3576 3453 19.65      
3 A 3146 3038 43.62      
4 A 3131 3024 39.97      
5 A 3083 2977 31.38      
6 A 3060 2955 23.45      
7 A 3013 2909 60.69      
8 A 1824 1761 539.54      
9 A 1637 1581 127.27      
10 A 1520 1468 1.57      
11 A 1496 1445 4.25      
12 A 1482 1431 6.56      
13 A 1431 1382 11.68      
14 A 1395 1347 25.87      
15 A 1327 1281 378.11      
16 A 1298 1253 0.58      
17 A 1164 1124 5.48      
18 A 1143 1104 18.42      
19 A 1087 1050 47.52      
20 A 1086 1049 124.11      
21 A 978 945 10.98      
22 A 846 817 11.39      
23 A 819 791 1.65      
24 A 754 728 36.69      
25 A 568 548 72.32      
26 A 545 526 90.10      
27 A 542 524 12.20      
28 A 401 387 94.26      
29 A 370 357 6.68      
30 A 258 249 0.64      
31 A 213 206 2.13      
32 A 105 102 1.29      
33 A 95 92 1.67      

Unscaled Zero Point Vibrational Energy (zpe) 23540.4 cm-1
Scaled (by 0.9657) Zero Point Vibrational Energy (zpe) 22733.0 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 B3LYP/CEP-31G*
ABC
0.28593 0.06937 0.05722

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

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 2.562 -0.238 0.043
H2 2.710 -0.839 -0.869
H3 3.377 0.504 0.116
H4 2.612 -0.908 0.917
C5 1.204 0.480 -0.001
H6 1.039 1.076 0.914
H7 1.154 1.151 -0.882
O8 0.182 -0.546 -0.107
N9 -1.449 1.140 0.101
H10 -0.834 1.827 -0.330
H11 -2.443 1.319 -0.024
C12 -1.144 -0.224 -0.010
O13 -1.992 -1.104 0.028

Atom - Atom Distances (Å)
  C1 H2 H3 H4 C5 H6 H7 O8 N9 H10 H11 C12 O13
C11.10231.10451.10221.53662.19232.18302.40404.24153.99215.24233.70604.6358
H21.10231.79401.79012.18213.10502.52562.65614.70684.46745.65043.99584.7943
H31.10451.79401.79412.17592.53592.52063.36994.86764.43645.87864.58035.6054
H41.10221.79011.79412.17972.53233.09822.66144.62114.57295.60413.92864.6937
C51.53662.18212.17592.17971.10441.10861.45212.73592.46523.74292.45113.5676
H62.19233.10502.53592.53231.10441.80142.09962.61832.37063.61462.70323.8376
H72.18302.52562.52063.09821.10861.80142.10352.78262.17163.70212.81603.9765
O82.40402.65613.36992.66141.45212.09962.10352.35552.59143.22211.36822.2492
N94.24154.70684.86764.62112.73592.61832.78262.35551.01761.01801.40192.3101
H103.99214.46744.43644.57292.46522.37062.17162.59141.01761.71462.09843.1719
H115.24235.65045.87865.60413.74293.61463.70213.22211.01801.71462.01762.4659
C123.70603.99584.58033.92862.45112.70322.81601.36821.40192.09842.01761.2234
O134.63584.79435.60544.69373.56763.83763.97652.24922.31013.17192.46591.2234

picture of Urethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C5 H6 111.163 C1 C5 H7 110.185
C1 C5 O8 107.068 H2 C1 H3 108.773
H2 C1 H4 108.584 H2 C1 C5 110.480
H3 C1 H4 108.793 H3 C1 C5 109.868
H4 C1 C5 110.299 C5 O8 C12 120.675
H6 C5 H7 108.984 H6 C5 O8 109.682
H7 C5 O8 109.737 O8 C12 N9 116.491
O8 C12 O13 120.318 N9 C12 O13 123.132
H10 N9 H11 114.770 H10 N9 C12 119.449
H11 N9 C12 111.995
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/CEP-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.306      
2 H 0.158      
3 H 0.143      
4 H 0.162      
5 C -0.305      
6 H 0.168      
7 H 0.134      
8 O -0.081      
9 N -0.420      
10 H 0.319      
11 H 0.334      
12 C -0.186      
13 O -0.120      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  2.561 4.618 -0.756 5.334
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -35.315 -6.170 1.325
y -6.170 -36.239 -1.806
z 1.325 -1.806 -35.923
Traceless
 xyz
x 0.766 -6.170 1.325
y -6.170 -0.620 -1.806
z 1.325 -1.806 -0.146
Polar
3z2-r2-0.292
x2-y20.924
xy-6.170
xz1.325
yz-1.806


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 8.771 0.322 -0.093
y 0.322 6.857 -0.021
z -0.093 -0.021 4.848


<r2> (average value of r2) Å2
<r2> 158.581
(<r2>)1/2 12.593