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All results from a given calculation for NH2COOC2H5 (Urethane)

using model chemistry: HF/aug-cc-pVDZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A
Energy calculated at HF/aug-cc-pVDZ
 hartrees
Energy at 0K-321.924139
Energy at 298.15K-321.933600
Nuclear repulsion energy248.405024
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 HF/aug-cc-pVDZ
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 3950 3597 53.79      
2 A 3824 3482 43.06      
3 A 3270 2978 45.18      
4 A 3254 2963 35.86      
5 A 3232 2943 13.13      
6 A 3183 2898 20.87      
7 A 3171 2887 44.88      
8 A 1955 1780 746.52      
9 A 1768 1610 153.48      
10 A 1631 1485 0.62      
11 A 1598 1456 0.35      
12 A 1578 1437 5.64      
13 A 1553 1414 14.48      
14 A 1512 1377 71.76      
15 A 1470 1339 390.99      
16 A 1413 1287 1.29      
17 A 1274 1160 5.27      
18 A 1258 1146 64.54      
19 A 1214 1106 140.24      
20 A 1188 1082 11.25      
21 A 1065 970 6.98      
22 A 935 851 12.13      
23 A 892 813 1.06      
24 A 868 790 47.91      
25 A 628 572 25.76      
26 A 600 546 8.48      
27 A 575 524 80.26      
28 A 406 370 13.35      
29 A 385 350 131.67      
30 A 280 255 0.49      
31 A 231 210 2.67      
32 A 106 97 0.60      
33 A 100 91 2.08      

Unscaled Zero Point Vibrational Energy (zpe) 25182.6 cm-1
Scaled (by 0.9106) Zero Point Vibrational Energy (zpe) 22931.2 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 HF/aug-cc-pVDZ
ABC
0.29971 0.07171 0.05928

See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/aug-cc-pVDZ

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 2.546 -0.245 0.033
H2 2.676 -0.838 -0.872
H3 3.360 0.478 0.098
H4 2.599 -0.910 0.894
C5 1.220 0.484 0.007
H6 1.083 1.071 0.914
H7 1.176 1.150 -0.858
O8 0.195 -0.493 -0.089
N9 -1.417 1.139 0.067
H10 -0.804 1.828 -0.302
H11 -2.391 1.321 -0.033
C12 -1.098 -0.190 -0.008
O13 -1.918 -1.052 0.027

Atom - Atom Distances (Å)
  C1 H2 H3 H4 C5 H6 H7 O8 N9 H10 H11 C12 O13
C11.08891.09051.08881.51372.15612.14872.36804.19853.95475.18043.64544.5369
H21.08891.77141.76862.15333.06042.48982.62474.64144.42095.57123.92584.6865
H31.09051.77141.77162.14152.48982.47613.31614.82244.39565.81364.50905.4957
H41.08881.76861.77162.15202.49433.05522.63114.58394.52915.54433.87374.6022
C51.51372.15332.14152.15201.08911.09191.41962.71812.44993.70722.41433.4938
H62.15613.06042.48982.49431.08911.77532.05952.64062.36973.60972.68293.7815
H72.14872.48982.47613.05521.09191.77532.06232.75342.16583.66522.77283.8992
O82.36802.62473.31612.63111.41962.05952.06232.29902.53623.15901.33052.1885
N94.19854.64144.82244.58392.71812.64062.75342.29900.99390.99591.36822.2473
H103.95474.42094.39564.52912.44992.36972.16582.53620.99391.68752.06043.1054
H115.18045.57125.81365.54433.70723.60973.66523.15900.99591.68751.98842.4200
C123.64543.92584.50903.87372.41432.68292.77281.33051.36822.06041.98841.1901
O134.53694.68655.49574.60223.49383.78153.89922.18852.24733.10542.42001.1901

picture of Urethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C5 H6 110.811 C1 C5 H7 110.046
C1 C5 O8 107.624 H2 C1 H3 108.744
H2 C1 H4 108.617 H2 C1 C5 110.603
H3 C1 H4 108.765 H3 C1 C5 109.565
H4 C1 C5 110.501 C5 O8 C12 122.748
H6 C5 H7 108.975 H6 C5 O8 109.658
H7 C5 O8 109.711 O8 C12 N9 116.825
O8 C12 O13 120.403 N9 C12 O13 122.749
H10 N9 H11 116.005 H10 N9 C12 120.620
H11 N9 C12 113.576
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/aug-cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.161      
2 H -0.023      
3 H -0.011      
4 H -0.017      
5 C 0.905      
6 H -0.210      
7 H -0.287      
8 O -0.801      
9 N -0.143      
10 H 0.022      
11 H -0.028      
12 C 1.114      
13 O -0.683      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  2.767 4.615 -0.622 5.416
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -36.593 -6.339 1.081
y -6.339 -36.918 -1.472
z 1.081 -1.472 -36.396
Traceless
 xyz
x 0.064 -6.339 1.081
y -6.339 -0.424 -1.472
z 1.081 -1.472 0.359
Polar
3z2-r20.719
x2-y20.325
xy-6.339
xz1.081
yz-1.472


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 0.000 0.000 0.000
y 0.000 0.000 0.000
z 0.000 0.000 0.000


<r2> (average value of r2) Å2
<r2> 190.388
(<r2>)1/2 13.798