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All results from a given calculation for NH2COOC2H5 (Urethane)

using model chemistry: BLYP/6-31G(2df,p)

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A
Energy calculated at BLYP/6-31G(2df,p)
 hartrees
Energy at 0K-323.666712
Energy at 298.15K-323.675664
Nuclear repulsion energy243.783961
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 BLYP/6-31G(2df,p)
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 3590 3570 24.99      
2 A 3478 3459 11.51      
3 A 3054 3038 22.53      
4 A 3046 3029 20.76      
5 A 2977 2960 15.56      
6 A 2968 2951 25.03      
7 A 2904 2888 43.74      
8 A 1781 1771 384.74      
9 A 1579 1571 92.11      
10 A 1482 1473 0.98      
11 A 1462 1454 3.77      
12 A 1448 1440 3.95      
13 A 1377 1369 3.96      
14 A 1364 1357 6.64      
15 A 1272 1265 277.88      
16 A 1260 1253 25.72      
17 A 1142 1135 4.09      
18 A 1111 1104 10.12      
19 A 1054 1048 23.45      
20 A 1026 1020 152.59      
21 A 946 941 26.48      
22 A 817 812 10.82      
23 A 811 807 3.31      
24 A 732 728 24.15      
25 A 556 552 43.92      
26 A 530 527 2.99      
27 A 524 521 72.80      
28 A 406 403 84.06      
29 A 363 361 3.70      
30 A 246 244 0.49      
31 A 207 206 2.01      
32 A 110 110 0.92      
33 A 84 84 1.06      

Unscaled Zero Point Vibrational Energy (zpe) 22851.2 cm-1
Scaled (by 0.9945) Zero Point Vibrational Energy (zpe) 22725.5 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 BLYP/6-31G(2df,p)
ABC
0.28729 0.06942 0.05730

See section I.F.4 to change rotational constant units
Geometric Data calculated at BLYP/6-31G(2df,p)

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 2.582 -0.248 0.051
H2 2.729 -0.870 -0.845
H3 3.405 0.481 0.111
H4 2.625 -0.900 0.936
C5 1.240 0.481 -0.012
H6 1.078 1.100 0.887
H7 1.203 1.140 -0.902
O8 0.203 -0.529 -0.105
N9 -1.406 1.176 0.086
H10 -0.777 1.851 -0.337
H11 -2.393 1.382 -0.037
C12 -1.129 -0.188 -0.011
O13 -1.977 -1.056 0.032

Atom - Atom Distances (Å)
  C1 H2 H3 H4 C5 H6 H7 O8 N9 H10 H11 C12 O13
C11.09991.10091.09981.52892.18592.17672.40154.23483.98025.23633.71204.6304
H21.09991.78721.78382.17523.09842.52382.65424.70554.46635.65264.00474.7902
H31.10091.78721.78772.16872.52982.51173.36504.86074.42345.86944.58435.5978
H41.09981.78381.78772.17352.52863.09222.66284.61284.55665.59773.93654.6927
C51.52892.17522.16872.17351.10381.10781.45042.73712.45993.74302.46093.5654
H62.18593.09842.52982.52861.10381.79352.09812.61072.34603.60282.70793.8356
H72.17672.52382.51173.09221.10781.79352.10292.78982.17813.70642.82703.9761
O82.40152.65423.36502.66281.45042.09812.10292.35112.58403.22361.37732.2465
N94.23484.70554.86074.61282.73712.61072.78982.35111.01541.01601.39442.3046
H103.98024.46634.42344.55662.45992.34602.17812.58401.01541.70932.09423.1670
H115.23635.65265.86945.59773.74303.60283.70643.22361.01601.70932.01562.4747
C123.71204.00474.58433.93652.46092.70792.82701.37731.39442.09422.01561.2151
O134.63044.79025.59784.69273.56543.83563.97612.24652.30463.16702.47471.2151

picture of Urethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C5 H6 111.234 C1 C5 H7 110.267
C1 C5 O8 107.398 H2 C1 H3 108.600
H2 C1 H4 108.380 H2 C1 C5 110.619
H3 C1 H4 108.646 H3 C1 C5 110.042
H4 C1 C5 110.493 C5 O8 C12 120.962
H6 C5 H7 108.378 H6 C5 O8 109.710
H7 C5 O8 109.850 O8 C12 N9 116.044
O8 C12 O13 119.995 N9 C12 O13 123.901
H10 N9 H11 114.578 H10 N9 C12 119.868
H11 N9 C12 112.538
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at BLYP/6-31G(2df,p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.346      
2 H 0.123      
3 H 0.106      
4 H 0.125      
5 C -0.047      
6 H 0.106      
7 H 0.087      
8 O -0.183      
9 N -0.519      
10 H 0.235      
11 H 0.249      
12 C 0.401      
13 O -0.336      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  2.200 3.905 -0.638 4.527
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -35.255 -5.568 1.049
y -5.568 -35.655 -1.464
z 1.049 -1.464 -35.716
Traceless
 xyz
x 0.431 -5.568 1.049
y -5.568 -0.170 -1.464
z 1.049 -1.464 -0.261
Polar
3z2-r2-0.521
x2-y20.401
xy-5.568
xz1.049
yz-1.464


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 9.428 0.223 -0.089
y 0.223 7.355 -0.091
z -0.089 -0.091 5.230


<r2> (average value of r2) Å2
<r2> 195.304
(<r2>)1/2 13.975