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All results from a given calculation for NH2COOC2H5 (Urethane)

using model chemistry: B3LYP/CEP-121G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A
Energy calculated at B3LYP/CEP-121G*
 hartrees
Energy at 0K-63.052806
Energy at 298.15K-63.061880
Nuclear repulsion energy136.747837
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 B3LYP/CEP-121G*
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 3673 3561 23.21      
2 A 3559 3450 15.04      
3 A 3118 3023 38.50      
4 A 3104 3009 34.30      
5 A 3056 2963 26.86      
6 A 3032 2939 21.64      
7 A 2987 2895 55.05      
8 A 1796 1741 525.70      
9 A 1649 1599 125.14      
10 A 1530 1484 1.63      
11 A 1507 1461 4.64      
12 A 1493 1447 6.20      
13 A 1434 1390 9.39      
14 A 1403 1360 17.56      
15 A 1322 1281 375.83      
16 A 1305 1265 4.30      
17 A 1173 1137 4.40      
18 A 1144 1109 15.29      
19 A 1089 1055 121.11      
20 A 1081 1048 81.01      
21 A 972 942 11.72      
22 A 843 817 13.16      
23 A 827 802 0.81      
24 A 752 729 36.17      
25 A 569 552 64.51      
26 A 544 527 96.34      
27 A 541 525 5.63      
28 A 410 398 88.03      
29 A 370 358 4.24      
30 A 258 250 0.66      
31 A 212 206 2.11      
32 A 104 101 1.19      
33 A 92 89 1.51      

Unscaled Zero Point Vibrational Energy (zpe) 23474.0 cm-1
Scaled (by 0.9694) Zero Point Vibrational Energy (zpe) 22755.7 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 B3LYP/CEP-121G*
ABC
0.28780 0.06950 0.05737

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/CEP-121G*

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 2.558 -0.237 0.047
H2 2.710 -0.840 -0.856
H3 3.369 0.499 0.117
H4 2.608 -0.899 0.918
C5 1.207 0.480 -0.005
H6 1.042 1.078 0.902
H7 1.163 1.144 -0.883
O8 0.182 -0.540 -0.110
N9 -1.452 1.134 0.102
H10 -0.844 1.821 -0.327
H11 -2.443 1.315 -0.017
C12 -1.146 -0.223 -0.010
O13 -1.986 -1.104 0.028

Atom - Atom Distances (Å)
  C1 H2 H3 H4 C5 H6 H7 O8 N9 H10 H11 C12 O13
C11.09571.09761.09561.53032.18162.17252.39994.23873.99395.23633.70424.6254
H21.09571.78141.77802.17383.09032.51642.65224.70544.47145.64773.99524.7854
H31.09761.78141.78172.16532.52302.50703.35944.86304.43795.87014.57395.5899
H41.09561.77801.78172.17162.52213.08382.65924.61404.56835.59343.92574.6836
C51.53032.17382.16532.17161.09841.10251.44982.74092.47203.74412.45583.5641
H62.18163.09032.52302.52211.09841.79052.09322.62012.37073.61152.70403.8326
H72.17252.51642.50703.08381.10251.79052.09662.79452.18973.71192.82163.9745
O82.39992.65223.35942.65921.44982.09322.09662.34992.58423.21571.36912.2443
N94.23874.70544.86304.61402.74092.62012.79452.34991.01311.01361.39652.3022
H103.99394.47144.43794.56832.47202.37072.18972.58421.01311.70562.09123.1604
H115.23635.64775.87015.59343.74413.61153.71193.21571.01361.70562.01202.4620
C123.70423.99524.57393.92572.45582.70402.82161.36911.39652.09122.01201.2174
O134.62544.78545.58994.68363.56413.83263.97452.24432.30223.16042.46201.2174

picture of Urethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C5 H6 111.114 C1 C5 H7 110.160
C1 C5 O8 107.252 H2 C1 H3 108.628
H2 C1 H4 108.463 H2 C1 C5 110.658
H3 C1 H4 108.662 H3 C1 C5 109.878
H4 C1 C5 110.496 C5 O8 C12 121.165
H6 C5 H7 108.891 H6 C5 O8 109.691
H7 C5 O8 109.715 O8 C12 N9 116.350
O8 C12 O13 120.272 N9 C12 O13 123.316
H10 N9 H11 114.608 H10 N9 C12 119.571
H11 N9 C12 112.217
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/CEP-121G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.520      
2 H 0.181      
3 H 0.164      
4 H 0.184      
5 C -0.177      
6 H 0.174      
7 H 0.144      
8 O -0.170      
9 N -0.582      
10 H 0.343      
11 H 0.351      
12 C 0.200      
13 O -0.293      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  2.412 4.481 -0.719 5.140
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -35.706 -6.172 1.253
y -6.172 -36.728 -1.729
z 1.253 -1.729 -36.466
Traceless
 xyz
x 0.891 -6.172 1.253
y -6.172 -0.642 -1.729
z 1.253 -1.729 -0.249
Polar
3z2-r2-0.498
x2-y21.022
xy-6.172
xz1.253
yz-1.729


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 9.222 0.373 -0.093
y 0.373 7.475 -0.055
z -0.093 -0.055 5.515


<r2> (average value of r2) Å2
<r2> 158.491
(<r2>)1/2 12.589