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All results from a given calculation for C3H10N2 (1,2-Diaminopropane)

using model chemistry: MP2/CEP-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 MP2/CEP-31G
 hartrees
Energy at 0K-41.972999
Energy at 298.15K-41.985126
HF Energy-41.526797
Nuclear repulsion energy111.177575
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/CEP-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 3676 3552 0.37      
2 A 3639 3516 0.20      
3 A 3538 3419 0.85      
4 A 3513 3395 2.04      
5 A 3140 3034 78.04      
6 A 3130 3024 22.87      
7 A 3122 3017 62.88      
8 A 3049 2946 63.58      
9 A 3024 2922 36.29      
10 A 2954 2855 109.88      
11 A 1706 1648 22.89      
12 A 1702 1645 53.44      
13 A 1531 1480 4.97      
14 A 1521 1470 5.24      
15 A 1498 1448 1.81      
16 A 1445 1397 11.26      
17 A 1427 1379 0.12      
18 A 1402 1355 18.75      
19 A 1375 1329 6.29      
20 A 1355 1310 5.66      
21 A 1266 1223 0.79      
22 A 1218 1177 4.70      
23 A 1168 1129 2.74      
24 A 1102 1065 22.16      
25 A 1046 1011 6.03      
26 A 1024 990 1.87      
27 A 963 930 2.01      
28 A 881 852 4.44      
29 A 835 807 52.89      
30 A 752 726 172.24      
31 A 622 601 305.48      
32 A 479 463 10.02      
33 A 456 441 27.32      
34 A 357 345 0.27      
35 A 305 295 79.91      
36 A 243 235 10.10      
37 A 219 212 12.97      
38 A 184 178 55.18      
39 A 108 104 15.25      

Unscaled Zero Point Vibrational Energy (zpe) 30487.6 cm-1
Scaled (by 0.9663) Zero Point Vibrational Energy (zpe) 29460.2 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/CEP-31G
ABC
0.25371 0.11057 0.08452

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/CEP-31G

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 0.506 1.424 -0.193
H2 -0.276 2.005 0.133
H3 1.401 1.906 -0.037
N4 -2.099 -0.122 0.034
H5 -2.288 0.725 -0.511
H6 -2.337 -0.014 1.026
C7 -0.756 -0.742 -0.231
H8 -0.774 -1.776 0.179
H9 -0.632 -0.803 -1.333
C10 1.813 -0.700 -0.035
H11 1.810 -1.751 0.328
H12 1.920 -0.701 -1.141
H13 2.695 -0.186 0.406
C14 0.483 0.020 0.363
H15 0.390 0.014 1.483

Atom - Atom Distances (Å)
  N1 H2 H3 N4 H5 H6 C7 H8 H9 C10 H11 H12 H13 C14 H15
N11.02761.02783.03782.89763.41202.50723.46702.74892.49903.47182.72252.78271.51042.1936
H21.02761.68842.80242.46963.02022.81173.81393.18763.42184.30063.71033.70182.13732.4957
H31.02781.68844.04513.90164.33493.42044.28183.62642.63863.69792.87802.49972.13512.6293
N43.03782.80244.04511.02461.02571.50272.12512.11733.95484.24524.22684.80912.60682.8832
H52.89762.46963.90161.02461.70642.13923.00452.39814.36714.86084.48695.14802.98983.4137
H63.41203.02024.33491.02571.70642.14682.50333.01514.33814.55024.82595.07372.89752.7656
C72.50722.81173.42041.50272.13922.14681.11311.11022.57652.81362.82673.55341.57122.1960
H83.46703.81394.28182.12513.00452.50331.11311.80332.80942.58803.18653.82292.20002.5019
H92.74893.18763.62642.11732.39813.01511.11021.80332.76973.10172.56133.80482.19023.1050
C102.49903.42182.63863.95484.36714.33812.57652.80942.76971.11181.11091.11281.56372.2000
H113.47184.30063.69794.24524.86084.55022.81362.58803.10171.11181.80921.79982.21332.5429
H122.72253.71032.87804.22684.48694.82592.82673.18652.56131.11091.80921.80552.20133.1206
H132.78273.70182.49974.80915.14805.07373.55343.82293.80481.11281.79981.80552.22222.5525
C141.51042.13732.13512.60682.98982.89751.57122.20002.19021.56372.21332.20132.22221.1240
H152.19362.49572.62932.88323.41372.76562.19602.50193.10502.20002.54293.12062.55251.1240

picture of 1,2-Diaminopropane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
N1 C14 C7 108.882 N1 C14 C10 108.747
N1 C14 H15 111.914 H2 N1 H3 110.469
H2 N1 C14 113.361 H3 N1 C14 113.160
N4 C7 H8 107.734 N4 C7 H9 107.303
N4 C7 C14 115.983 H5 N4 H6 112.669
H5 N4 C7 114.318 H6 N4 C7 114.919
C7 C14 C10 110.547 C7 C14 H15 107.981
H8 C7 H9 108.405 H8 C7 C14 108.892
H9 C7 C14 108.305 C10 C14 H15 108.775
H11 C10 H12 108.967 H11 C10 H13 108.007
H11 C10 C14 110.492 H12 C10 H13 108.570
H12 C10 C14 109.616 H13 C10 C14 111.130
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability