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All results from a given calculation for NH2COOC2H5 (Urethane)

using model chemistry: B3LYP/6-31+G**

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/6-31+G**
 hartrees
Energy at 0K-323.775604
Energy at 298.15K-323.784634
Nuclear repulsion energy245.347657
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/6-31+G**
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 3730 3597 49.64      
2 A 3606 3477 29.40      
3 A 3139 3027 21.78      
4 A 3127 3015 20.77      
5 A 3066 2956 24.22      
6 A 3054 2944 16.39      
7 A 3007 2900 41.02      
8 A 1817 1752 594.18      
9 A 1631 1573 133.69      
10 A 1525 1471 1.84      
11 A 1506 1452 5.05      
12 A 1489 1435 7.76      
13 A 1432 1381 7.67      
14 A 1406 1356 29.32      
15 A 1335 1287 407.86      
16 A 1304 1257 1.31      
17 A 1176 1134 4.94      
18 A 1149 1108 21.20      
19 A 1098 1058 68.48      
20 A 1085 1046 95.62      
21 A 987 952 13.58      
22 A 855 824 10.91      
23 A 836 807 0.62      
24 A 761 734 25.76      
25 A 572 551 14.04      
26 A 551 531 4.68      
27 A 526 507 62.31      
28 A 379 366 9.15      
29 A 349 336 157.67      
30 A 256 247 0.39      
31 A 213 206 2.84      
32 A 103 100 1.19      
33 A 89 85 0.98      

Unscaled Zero Point Vibrational Energy (zpe) 23578.8 cm-1
Scaled (by 0.9642) Zero Point Vibrational Energy (zpe) 22734.6 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/6-31+G**
ABC
0.29244 0.07010 0.05788

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

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 2.569 -0.248 0.033
H2 2.699 -0.854 -0.869
H3 3.389 0.476 0.089
H4 2.626 -0.908 0.903
C5 1.238 0.481 0.002
H6 1.098 1.082 0.908
H7 1.187 1.142 -0.876
O8 0.201 -0.515 -0.081
N9 -1.414 1.159 0.061
H10 -0.772 1.864 -0.263
H11 -2.397 1.371 -0.027
C12 -1.117 -0.185 -0.010
O13 -1.960 -1.057 0.025

Atom - Atom Distances (Å)
  C1 H2 H3 H4 C5 H6 H7 O8 N9 H10 H11 C12 O13
C11.09351.09501.09351.51832.16832.16102.38614.22513.96435.22413.68694.6014
H21.09351.77751.77442.16173.07702.50362.64144.67284.44995.62383.96794.7488
H31.09501.77751.77762.15252.50752.49493.34264.85174.40065.85594.55495.5648
H41.09351.77441.77762.16012.50823.07172.64594.61524.53735.59323.91914.6715
C51.51832.16172.15252.16011.09681.09961.44022.73842.45443.74262.44733.5491
H62.16833.07702.50752.50821.09681.78762.08142.65252.34143.62972.71183.8351
H72.16102.50362.49493.07171.09961.78762.08502.76472.17563.68972.79563.9431
O82.38612.64143.34262.64591.44022.08142.08502.33022.57683.21061.35992.2307
N94.22514.67284.85174.61522.73842.65252.76472.33021.00801.00921.37862.2822
H103.96434.44994.40064.53732.45442.34142.17562.57681.00801.71462.09393.1669
H115.22415.62385.85595.59323.74263.62973.68973.21061.00921.71462.01552.4675
C123.68693.96794.55493.91912.44732.71182.79561.35991.37862.09392.01551.2135
O134.60144.74885.56484.67153.54913.83513.94312.23072.28223.16692.46751.2135

picture of Urethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C5 H6 110.991 C1 C5 H7 110.247
C1 C5 O8 107.489 H2 C1 H3 108.621
H2 C1 H4 108.459 H2 C1 C5 110.668
H3 C1 H4 108.640 H3 C1 C5 109.853
H4 C1 C5 110.543 C5 O8 C12 121.827
H6 C5 H7 108.954 H6 C5 O8 109.510
H7 C5 O8 109.630 O8 C12 N9 116.619
O8 C12 O13 120.078 N9 C12 O13 123.270
H10 N9 H11 116.423 H10 N9 C12 121.883
H11 N9 C12 114.259
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/6-31+G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.611     -0.381
2 H 0.170     0.120
3 H 0.148     0.076
4 H 0.172     0.125
5 C 0.034     0.475
6 H 0.152     -0.018
7 H 0.127     -0.039
8 O -0.377     -0.525
9 N -0.603     -0.903
10 H 0.285     0.349
11 H 0.327     0.391
12 C 0.689     0.939
13 O -0.512     -0.609


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  2.687 4.656 -0.542 5.403
CHELPG        
AIM        
ESP 2.688 4.609 -0.569 5.366


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -36.472 -6.306 0.944
y -6.306 -36.919 -1.341
z 0.944 -1.341 -36.984
Traceless
 xyz
x 0.480 -6.306 0.944
y -6.306 -0.192 -1.341
z 0.944 -1.341 -0.288
Polar
3z2-r2-0.576
x2-y20.448
xy-6.306
xz0.944
yz-1.341


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 9.515 0.367 -0.058
y 0.367 7.952 -0.009
z -0.058 -0.009 5.900


<r2> (average value of r2) Å2
<r2> 194.317
(<r2>)1/2 13.940