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All results from a given calculation for NH2COOC2H5 (Urethane)

using model chemistry: HF/aug-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/aug-cc-pVTZ
 hartrees
Energy at 0K-322.005262
Energy at 298.15K-322.014691
Nuclear repulsion energy249.307811
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-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 3956 3602 57.55      
2 A 3832 3489 47.52      
3 A 3251 2960 41.61      
4 A 3236 2946 34.89      
5 A 3204 2917 16.94      
6 A 3173 2889 19.16      
7 A 3155 2873 43.74      
8 A 1961 1785 766.93      
9 A 1779 1619 149.59      
10 A 1652 1504 1.35      
11 A 1618 1473 0.77      
12 A 1599 1456 5.60      
13 A 1566 1426 14.48      
14 A 1531 1394 30.34      
15 A 1475 1343 457.71      
16 A 1427 1299 1.29      
17 A 1287 1171 5.44      
18 A 1269 1155 84.20      
19 A 1217 1108 116.81      
20 A 1190 1083 12.82      
21 A 1062 967 4.46      
22 A 938 854 10.08      
23 A 898 818 0.69      
24 A 875 797 43.70      
25 A 632 575 19.35      
26 A 604 550 6.59      
27 A 561 511 56.66      
28 A 407 370 1.94      
29 A 354 323 171.38      
30 A 277 252 0.47      
31 A 230 209 2.98      
32 A 109 100 0.55      
33 A 96 88 1.80      

Unscaled Zero Point Vibrational Energy (zpe) 25210.5 cm-1
Scaled (by 0.9104) Zero Point Vibrational Energy (zpe) 22951.6 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 HF/aug-cc-pVTZ
ABC
0.30236 0.07208 0.05957

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

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 2.541 -0.246 0.029
H2 2.662 -0.845 -0.864
H3 3.353 0.469 0.080
H4 2.597 -0.898 0.890
C5 1.218 0.484 0.003
H6 1.093 1.081 0.898
H7 1.170 1.138 -0.862
O8 0.194 -0.485 -0.074
N9 -1.421 1.130 0.058
H10 -0.797 1.833 -0.246
H11 -2.389 1.321 -0.035
C12 -1.096 -0.191 -0.006
O13 -1.908 -1.052 0.022

Atom - Atom Distances (Å)
  C1 H2 H3 H4 C5 H6 H7 O8 N9 H10 H11 C12 O13
C11.08191.08351.08181.51142.14772.14192.36154.19463.94205.17363.63794.5217
H21.08191.75971.75602.14583.04562.48182.61644.62904.41835.55843.91014.6598
H31.08351.75971.75992.13712.48072.47003.30424.82044.38095.80674.49935.4776
H41.08181.75601.75992.14462.48523.04162.62184.57724.50185.53533.86574.5907
C51.51142.14582.13712.14461.08301.08541.41232.71772.43743.70312.41073.4834
H62.14773.04562.48072.48521.08301.76302.05052.65102.33353.61282.68823.7846
H72.14192.48182.47003.04161.08541.76302.05232.75062.17583.65942.76363.8806
O82.36152.61643.30422.62181.41232.05052.05232.28842.52733.15221.32512.1793
N94.19464.62904.82044.57722.71772.65102.75062.28840.98820.99091.36202.2366
H103.94204.41834.38094.50182.43742.33352.17582.52730.98821.68622.06013.1038
H115.17365.55845.80675.53533.70313.61283.65943.15220.99091.68621.98932.4221
C123.63793.91014.49933.86572.41072.68822.76361.32511.36202.06011.98931.1842
O134.52174.65985.47764.59073.48343.78463.88062.17932.23663.10382.42211.1842

picture of Urethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C5 H6 110.664 C1 C5 H7 110.057
C1 C5 O8 107.695 H2 C1 H3 108.711
H2 C1 H4 108.497 H2 C1 C5 110.576
H3 C1 H4 108.731 H3 C1 C5 109.784
H4 C1 C5 110.492 C5 O8 C12 123.407
H6 C5 H7 108.789 H6 C5 O8 109.813
H7 C5 O8 109.814 O8 C12 N9 116.767
O8 C12 O13 120.466 N9 C12 O13 122.750
H10 N9 H11 116.852 H10 N9 C12 121.637
H11 N9 C12 114.523
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/aug-cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.982      
2 H 0.283      
3 H 0.311      
4 H 0.285      
5 C -0.088      
6 H 0.325      
7 H 0.315      
8 O -0.237      
9 N -0.241      
10 H 0.180      
11 H 0.134      
12 C 0.451      
13 O -0.736      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  2.764 4.636 -0.534 5.424
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -36.444 -6.338 0.932
y -6.338 -36.612 -1.244
z 0.932 -1.244 -36.251
Traceless
 xyz
x -0.013 -6.338 0.932
y -6.338 -0.264 -1.244
z 0.932 -1.244 0.277
Polar
3z2-r20.554
x2-y20.167
xy-6.338
xz0.932
yz-1.244


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 8.800 0.233 -0.031
y 0.233 7.479 -0.007
z -0.031 -0.007 5.886


<r2> (average value of r2) Å2
<r2> 189.382
(<r2>)1/2 13.762