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All results from a given calculation for NH2COOC2H5 (Urethane)

using model chemistry: HF/cc-pVTZ

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/cc-pVTZ
 hartrees
Energy at 0K-322.000535
Energy at 298.15K-322.009996
Nuclear repulsion energy249.356920
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/cc-pVTZ
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 3953 3598 53.90      
2 A 3830 3486 45.02      
3 A 3250 2958 43.83      
4 A 3236 2945 36.79      
5 A 3205 2917 18.23      
6 A 3172 2887 19.55      
7 A 3153 2870 46.11      
8 A 1977 1799 728.24      
9 A 1780 1620 148.33      
10 A 1654 1505 1.31      
11 A 1618 1473 0.73      
12 A 1599 1456 5.31      
13 A 1569 1428 14.30      
14 A 1531 1394 31.88      
15 A 1478 1346 454.51      
16 A 1427 1299 1.42      
17 A 1288 1172 5.71      
18 A 1271 1156 85.89      
19 A 1221 1111 115.05      
20 A 1191 1084 11.22      
21 A 1062 967 4.53      
22 A 939 854 11.73      
23 A 899 818 1.00      
24 A 877 798 47.47      
25 A 633 576 20.80      
26 A 605 550 6.03      
27 A 567 516 71.46      
28 A 407 371 3.61      
29 A 379 345 158.77      
30 A 278 253 0.44      
31 A 230 210 2.83      
32 A 109 99 0.58      
33 A 97 88 1.85      

Unscaled Zero Point Vibrational Energy (zpe) 25242.1 cm-1
Scaled (by 0.9101) Zero Point Vibrational Energy (zpe) 22972.9 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/cc-pVTZ
ABC
0.30209 0.07216 0.05963

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

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 2.540 -0.246 0.032
H2 2.664 -0.843 -0.861
H3 3.353 0.468 0.089
H4 2.591 -0.900 0.892
C5 1.216 0.484 0.002
H6 1.087 1.079 0.898
H7 1.174 1.141 -0.861
O8 0.194 -0.485 -0.082
N9 -1.419 1.132 0.063
H10 -0.801 1.828 -0.270
H11 -2.387 1.319 -0.032
C12 -1.097 -0.191 -0.007
O13 -1.907 -1.052 0.024

Atom - Atom Distances (Å)
  C1 H2 H3 H4 C5 H6 H7 O8 N9 H10 H11 C12 O13
C11.08201.08361.08191.51142.14802.14152.36044.19123.94335.16973.63674.5195
H21.08201.75991.75582.14553.04572.48162.61464.62864.41465.55683.91114.6612
H31.08361.75991.76002.13802.48202.47023.30384.81744.38525.80404.49885.4758
H41.08191.75581.76002.14432.48573.04112.62044.57104.50535.52833.86134.5839
C51.51142.14552.13802.14431.08301.08561.41142.71432.43913.69932.40963.4813
H62.14803.04572.48202.48571.08301.76222.05042.64182.34313.60482.68333.7777
H72.14152.48162.47023.04111.08561.76222.05242.75262.17273.66102.76763.8847
O82.36042.61463.30382.62041.41142.05042.05242.28832.52483.14961.32582.1793
N94.19124.62864.81744.57102.71432.64182.75262.28830.98860.99111.36322.2381
H103.94334.41464.38524.50532.43912.34312.17272.52480.98861.68312.05713.0991
H115.16975.55685.80405.52833.69933.60483.66103.14960.99111.68311.98642.4193
C123.63673.91114.49883.86132.40962.68332.76761.32581.36322.05711.98641.1832
O134.51954.66125.47584.58393.48133.77773.88472.17932.23813.09912.41931.1832

picture of Urethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C5 H6 110.696 C1 C5 H7 110.014
C1 C5 O8 107.673 H2 C1 H3 108.711
H2 C1 H4 108.469 H2 C1 C5 110.554
H3 C1 H4 108.734 H3 C1 C5 109.860
H4 C1 C5 110.463 C5 O8 C12 123.325
H6 C5 H7 108.701 H6 C5 O8 109.876
H7 C5 O8 109.875 O8 C12 N9 116.633
O8 C12 O13 120.480 N9 C12 O13 122.868
H10 N9 H11 116.466 H10 N9 C12 121.200
H11 N9 C12 114.143
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.267 -0.339   -0.425
2 H 0.107 0.104   0.129
3 H 0.087 0.061   0.086
4 H 0.109 0.108   0.134
5 C 0.025 0.524   0.486
6 H 0.092 -0.040   -0.019
7 H 0.066 -0.057   -0.037
8 O -0.258 -0.545   -0.512
9 N -0.326 -0.923   -0.904
10 H 0.182 0.350   0.342
11 H 0.194 0.390   0.392
12 C 0.401 1.030   0.976
13 O -0.412 -0.665   -0.647


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  2.657 4.596 -0.574 5.339
CHELPG        
AIM        
ESP 2.697 4.563 -0.596 5.334


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -36.165 -6.240 0.994
y -6.240 -36.384 -1.337
z 0.994 -1.337 -36.019
Traceless
 xyz
x 0.037 -6.240 0.994
y -6.240 -0.292 -1.337
z 0.994 -1.337 0.256
Polar
3z2-r20.512
x2-y20.219
xy-6.240
xz0.994
yz-1.337


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 8.256 0.272 -0.045
y 0.272 6.910 -0.037
z -0.045 -0.037 5.318


<r2> (average value of r2) Å2
<r2> 189.079
(<r2>)1/2 13.751