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All results from a given calculation for NH2COOC2H5 (Urethane)

using model chemistry: MP2/Def2TZVPP

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A
Energy calculated at MP2/Def2TZVPP
 hartrees
Energy at 0K-323.187177
Energy at 298.15K-323.196396
HF Energy-322.010432
Nuclear repulsion energy247.205092
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 MP2/Def2TZVPP
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 3758 3576 53.88      
2 A 3630 3454 35.23      
3 A 3196 3041 12.95      
4 A 3185 3031 12.08      
5 A 3123 2972 15.65      
6 A 3094 2944 10.74      
7 A 3056 2908 33.03      
8 A 1835 1746 511.38      
9 A 1632 1552 125.12      
10 A 1539 1465 2.42      
11 A 1517 1444 3.04      
12 A 1500 1427 6.49      
13 A 1438 1368 7.56      
14 A 1412 1343 25.32      
15 A 1350 1284 359.38      
16 A 1323 1259 2.87      
17 A 1189 1131 4.23      
18 A 1165 1109 24.36      
19 A 1130 1075 116.55      
20 A 1101 1047 34.68      
21 A 1003 954 19.86      
22 A 868 826 15.21      
23 A 844 803 0.40      
24 A 777 739 23.70      
25 A 580 552 24.98      
26 A 559 532 3.61      
27 A 541 515 83.49      
28 A 406 387 109.20      
29 A 386 367 12.70      
30 A 263 250 0.45      
31 A 224 213 2.41      
32 A 115 110 0.63      
33 A 99 95 1.26      

Unscaled Zero Point Vibrational Energy (zpe) 23918.1 cm-1
Scaled (by 0.9515) Zero Point Vibrational Energy (zpe) 22758.1 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 MP2/Def2TZVPP
ABC
0.29536 0.07164 0.05905

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/Def2TZVPP

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 2.540 -0.247 0.041
H2 2.675 -0.838 -0.861
H3 3.351 0.474 0.113
H4 2.582 -0.910 0.901
C5 1.213 0.470 0.003
H6 1.051 1.055 0.908
H7 1.166 1.136 -0.862
O8 0.199 -0.535 -0.107
N9 -1.359 1.168 0.077
H10 -0.720 1.810 -0.355
H11 -2.333 1.383 -0.054
C12 -1.106 -0.183 0.005
O13 -1.966 -1.030 0.029

Atom - Atom Distances (Å)
  C1 H2 H3 H4 C5 H6 H7 O8 N9 H10 H11 C12 O13
C11.08681.08841.08661.50902.15942.14902.36294.14833.87515.13903.64704.5730
H21.08681.76871.76552.14413.05792.48572.60644.60264.33575.53793.93454.7296
H31.08841.76871.76912.14132.50172.48293.31694.76144.31015.75854.50715.5263
H41.08661.76551.76912.14182.49123.05032.61474.53194.45935.50753.86534.6326
C51.50902.14412.14132.14181.08981.09321.43122.66612.37913.66162.40933.5147
H62.15943.05792.50172.49121.08981.77612.06942.55272.30333.53352.64673.7713
H72.14902.48572.48293.05031.09321.77612.07302.69402.06563.59902.76673.9107
O82.36292.60643.31692.61471.43122.06942.07302.31552.53053.17671.35652.2249
N94.14834.60264.76144.53192.66612.55272.69402.31551.00351.00541.37672.2809
H103.87514.33574.31014.45932.37912.30332.06562.53051.00351.69502.06183.1250
H115.13905.53795.75855.50753.66163.53353.59903.17671.00541.69501.99042.4429
C123.64703.93454.50713.86532.40932.64672.76671.35651.37672.06181.99041.2068
O134.57304.72965.52634.63263.51473.77133.91072.22492.28093.12502.44291.2068

picture of Urethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C5 H6 111.368 C1 C5 H7 110.333
C1 C5 O8 106.933 H2 C1 H3 108.810
H2 C1 H4 108.653 H2 C1 C5 110.324
H3 C1 H4 108.859 H3 C1 C5 110.003
H4 C1 C5 110.152 C5 O8 C12 119.570
H6 C5 H7 108.902 H6 C5 O8 109.600
H7 C5 O8 109.680 O8 C12 N9 115.810
O8 C12 O13 120.336 N9 C12 O13 123.853
H10 N9 H11 115.076 H10 N9 C12 119.224
H11 N9 C12 112.417
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability