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All results from a given calculation for NH2COOC2H5 (Urethane)

using model chemistry: B1B95/6-31G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A
Energy calculated at B1B95/6-31G*
 hartrees
Energy at 0K-323.608582
Energy at 298.15K-323.617830
Nuclear repulsion energy247.332912
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 B1B95/6-31G*
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 3748 3558 41.32      
2 A 3632 3448 26.74      
3 A 3188 3027 17.98      
4 A 3179 3018 18.10      
5 A 3101 2944 25.83      
6 A 3096 2939 12.73      
7 A 3036 2882 43.54      
8 A 1906 1809 502.04      
9 A 1673 1588 139.60      
10 A 1554 1475 1.43      
11 A 1530 1453 3.79      
12 A 1513 1437 6.27      
13 A 1458 1384 10.37      
14 A 1427 1355 57.85      
15 A 1375 1305 349.12      
16 A 1329 1262 0.64      
17 A 1193 1133 5.92      
18 A 1181 1121 46.37      
19 A 1143 1085 99.43      
20 A 1119 1062 16.07      
21 A 1014 963 12.40      
22 A 881 836 12.40      
23 A 849 806 0.80      
24 A 780 741 44.67      
25 A 581 551 47.32      
26 A 563 534 31.43      
27 A 559 531 50.94      
28 A 424 403 113.11      
29 A 386 366 25.72      
30 A 266 253 0.57      
31 A 226 215 2.28      
32 A 120 114 0.69      
33 A 101 96 1.91      

Unscaled Zero Point Vibrational Energy (zpe) 24065.2 cm-1
Scaled (by 0.9493) Zero Point Vibrational Energy (zpe) 22845.1 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 B1B95/6-31G*
ABC
0.29485 0.07170 0.05916

See section I.F.4 to change rotational constant units
Geometric Data calculated at B1B95/6-31G*

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 2.541 -0.247 0.059
H2 2.693 -0.858 -0.832
H3 3.358 0.474 0.132
H4 2.571 -0.899 0.933
C5 1.216 0.471 -0.014
H6 1.045 1.081 0.879
H7 1.190 1.131 -0.893
O8 0.199 -0.518 -0.121
N9 -1.377 1.159 0.082
H10 -0.754 1.834 -0.332
H11 -2.358 1.371 -0.001
C12 -1.106 -0.185 -0.012
O13 -1.951 -1.042 0.039

Atom - Atom Distances (Å)
  C1 H2 H3 H4 C5 H6 H7 O8 N9 H10 H11 C12 O13
C11.09111.09221.09101.50932.16182.15162.36404.16233.91685.15953.64804.5618
H21.09111.77361.76972.14963.06682.49422.61544.63354.40285.58353.94434.7287
H31.09221.77361.77412.14742.50522.48643.32044.78434.35615.78734.51465.5221
H41.09101.76971.77412.14762.50013.05962.62294.53234.48605.50633.86284.6118
C51.50932.14962.14742.14761.09501.09871.42242.68362.41613.68502.41253.5101
H62.16183.06682.50522.50011.09501.77862.06722.55102.29603.52712.65063.7672
H72.15162.49422.48643.05961.09871.77862.07252.74562.14223.66572.78863.9309
O82.36402.61543.32042.62291.42242.06722.07252.31042.54673.18191.35142.2191
N94.16234.63354.78434.53232.68362.55102.74562.31041.00701.00731.37442.2749
H103.91684.40284.35614.48602.41612.29602.14222.54671.00701.70102.07403.1365
H115.15955.58355.78735.50633.68503.52713.66573.18191.00731.70101.99772.4477
C123.64803.94434.51463.86282.41252.65062.78861.35141.37442.07401.99771.2045
O134.56184.72875.52214.61183.51013.76723.93092.21912.27493.13652.44771.2045

picture of Urethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C5 H6 111.223 C1 C5 H7 110.185
C1 C5 O8 107.444 H2 C1 H3 108.653
H2 C1 H4 108.388 H2 C1 C5 110.473
H3 C1 H4 108.705 H3 C1 C5 110.239
H4 C1 C5 110.327 C5 O8 C12 120.835
H6 C5 H7 108.346 H6 C5 O8 109.719
H7 C5 O8 109.923 O8 C12 N9 115.901
O8 C12 O13 120.395 N9 C12 O13 123.663
H10 N9 H11 115.235 H10 N9 C12 120.354
H11 N9 C12 113.122
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B1B95/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.503      
2 H 0.189      
3 H 0.168      
4 H 0.191      
5 C -0.096      
6 H 0.177      
7 H 0.152      
8 O -0.456      
9 N -0.791      
10 H 0.349      
11 H 0.366      
12 C 0.744      
13 O -0.490      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  2.341 4.261 -0.697 4.912
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -34.933 -5.832 1.120
y -5.832 -35.388 -1.601
z 1.120 -1.601 -35.653
Traceless
 xyz
x 0.587 -5.832 1.120
y -5.832 -0.095 -1.601
z 1.120 -1.601 -0.492
Polar
3z2-r2-0.985
x2-y20.455
xy-5.832
xz1.120
yz-1.601


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 8.214 0.333 -0.135
y 0.333 6.651 -0.080
z -0.135 -0.080 4.647


<r2> (average value of r2) Å2
<r2> 189.876
(<r2>)1/2 13.780