return to home page Computational Chemistry Comparison and Benchmark DataBase Release 22 (May 2022) Standard Reference Database 101 National Institute of Standards and Technology
You are here: Calculated > Energy > Optimized > Energy

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

using model chemistry: mPW1PW91/6-31G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A
Energy calculated at mPW1PW91/6-31G*
 hartrees
Energy at 0K-229.770306
Energy at 298.15K-229.782847
Nuclear repulsion energy195.530862
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 mPW1PW91/6-31G*
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 3616 3429 0.05      
2 A 3603 3417 0.30      
3 A 3517 3336 2.07      
4 A 3516 3334 0.91      
5 A 3161 2998 27.73      
6 A 3145 2982 31.57      
7 A 3125 2964 27.90      
8 A 3074 2915 45.15      
9 A 3069 2910 17.53      
10 A 2940 2788 88.97      
11 A 1709 1620 4.51      
12 A 1697 1610 62.62      
13 A 1535 1456 3.12      
14 A 1523 1445 5.49      
15 A 1506 1428 0.82      
16 A 1448 1373 3.21      
17 A 1434 1360 14.09      
18 A 1421 1348 4.47      
19 A 1400 1328 9.82      
20 A 1363 1293 10.48      
21 A 1286 1220 1.13      
22 A 1228 1165 5.47      
23 A 1194 1132 5.83      
24 A 1142 1083 11.38      
25 A 1069 1013 13.81      
26 A 1042 988 1.38      
27 A 976 925 11.83      
28 A 926 879 112.31      
29 A 902 856 90.06      
30 A 858 814 86.88      
31 A 813 771 71.62      
32 A 498 473 3.18      
33 A 474 450 24.65      
34 A 373 354 57.96      
35 A 368 349 1.36      
36 A 258 245 7.60      
37 A 247 234 36.86      
38 A 225 213 26.93      
39 A 121 115 6.67      

Unscaled Zero Point Vibrational Energy (zpe) 30902.7 cm-1
Scaled (by 0.9483) Zero Point Vibrational Energy (zpe) 29305.0 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 mPW1PW91/6-31G*
ABC
0.26771 0.11732 0.08957

See section I.F.4 to change rotational constant units
Geometric Data calculated at mPW1PW91/6-31G*

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 0.473 1.382 -0.219
H2 -0.305 1.910 0.165
H3 1.313 1.874 0.070
N4 -2.046 -0.135 0.022
H5 -2.120 0.741 -0.486
H6 -2.185 0.071 1.007
C7 -0.739 -0.733 -0.202
H8 -0.744 -1.739 0.235
H9 -0.612 -0.852 -1.284
C10 1.766 -0.670 -0.036
H11 1.771 -1.703 0.326
H12 1.883 -0.681 -1.124
H13 2.637 -0.163 0.393
C14 0.471 0.033 0.344
H15 0.392 0.037 1.448

Atom - Atom Distances (Å)
  N1 H2 H3 N4 H5 H6 C7 H8 H9 C10 H11 H12 H13 C14 H15
N11.01581.01602.95032.68433.20752.43763.38042.70132.43243.39102.65702.72851.46132.1439
H21.01581.62122.68952.25482.76172.70343.67613.13343.31484.17043.62763.60652.03902.3754
H31.01601.62123.91453.65784.04563.32924.16123.60122.58693.61552.87742.45122.04282.4744
N42.95032.68953.91451.01481.01611.45472.07712.06783.85014.13854.12894.69812.54362.8304
H52.68432.25483.65781.01481.63762.03952.92622.33404.15874.66654.29544.92142.81143.2478
H63.20752.76174.04561.01611.63762.04912.43912.92814.15324.38944.65344.86692.73832.6151
C72.43762.70343.32921.45472.03952.04911.09671.09562.51152.74292.77993.47531.53302.1440
H83.38043.67614.16122.07712.92622.43911.09671.76352.74152.51773.14113.73382.15182.4329
H92.70133.13343.60122.06782.33402.92811.09561.76352.69122.99922.50543.72012.14563.0433
C102.43243.31482.58693.85014.15874.15322.51152.74152.69121.09421.09441.09541.52162.1428
H113.39104.17043.61554.13854.66654.38942.74292.51772.99921.09421.77761.76762.16912.4881
H122.65703.62762.87744.12894.29544.65342.77993.14112.50541.09441.77761.77142.15773.0586
H132.72853.60652.45124.69814.92144.86693.47533.73383.72011.09541.76761.77142.17522.4889
C141.46132.03902.04282.54362.81142.73831.53302.15182.14561.52162.16912.15772.17521.1077
H152.14392.37542.47442.83043.24782.61512.14402.43293.04332.14282.48813.05862.48891.1077

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 108.969 N1 C14 C10 109.245
N1 C14 H15 112.402 H2 N1 H3 105.858
H2 N1 C14 109.477 H3 N1 C14 109.785
N4 C7 H8 108.180 N4 C7 H9 107.510
N4 C7 C14 116.697 H5 N4 H6 107.475
H5 N4 C7 110.077 H6 N4 C7 110.804
C7 C14 C10 110.612 C7 C14 H15 107.472
H8 C7 H9 107.108 H8 C7 C14 108.687
H9 C7 C14 108.271 C10 C14 H15 108.135
H11 C10 H12 108.628 H11 C10 H13 107.660
H11 C10 C14 110.989 H12 C10 H13 107.982
H12 C10 C14 110.071 H13 C10 C14 111.403
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at mPW1PW91/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 N -0.755      
2 H 0.303      
3 H 0.317      
4 N -0.756      
5 H 0.321      
6 H 0.309      
7 C -0.174      
8 H 0.163      
9 H 0.177      
10 C -0.521      
11 H 0.172      
12 H 0.185      
13 H 0.164      
14 C -0.031      
15 H 0.128      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  1.030 1.208 1.771 2.379
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 0.000 0.000 0.000
y 0.000 0.000 0.000
z 0.000 0.000 0.000


<r2> (average value of r2) Å2
<r2> 142.831
(<r2>)1/2 11.951