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

using model chemistry: B3PW91/3-21G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A
Energy calculated at B3PW91/3-21G
 hartrees
Energy at 0K-228.487763
Energy at 298.15K-228.500095
Nuclear repulsion energy194.480120
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 B3PW91/3-21G
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 3578 3439 0.28      
2 A 3518 3382 0.84      
3 A 3462 3328 0.49      
4 A 3419 3287 6.00      
5 A 3141 3019 26.65      
6 A 3118 2997 27.54      
7 A 3116 2995 19.70      
8 A 3053 2935 42.00      
9 A 3049 2931 17.74      
10 A 2913 2800 89.52      
11 A 1706 1639 3.09      
12 A 1700 1634 54.60      
13 A 1562 1502 6.05      
14 A 1546 1486 6.65      
15 A 1516 1457 2.66      
16 A 1444 1388 16.41      
17 A 1419 1364 4.51      
18 A 1416 1361 5.01      
19 A 1386 1332 7.66      
20 A 1365 1312 9.04      
21 A 1286 1236 1.32      
22 A 1218 1171 2.75      
23 A 1172 1126 0.52      
24 A 1103 1060 14.84      
25 A 1065 1024 4.77      
26 A 1030 990 0.86      
27 A 955 918 4.89      
28 A 889 855 3.66      
29 A 844 811 29.32      
30 A 724 696 145.85      
31 A 592 569 262.25      
32 A 493 474 8.62      
33 A 459 442 35.71      
34 A 388 373 82.92      
35 A 363 349 2.13      
36 A 256 246 10.22      
37 A 236 227 3.93      
38 A 202 195 105.79      
39 A 117 113 13.25      

Unscaled Zero Point Vibrational Energy (zpe) 30409.7 cm-1
Scaled (by 0.9612) Zero Point Vibrational Energy (zpe) 29229.8 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 B3PW91/3-21G
ABC
0.26592 0.11636 0.08909

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3PW91/3-21G

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 0.446 1.387 -0.200
H2 -0.405 1.877 0.090
H3 1.267 1.938 0.066
N4 -2.039 -0.139 0.023
H5 -2.201 0.695 -0.539
H6 -2.264 0.008 1.008
C7 -0.722 -0.749 -0.206
H8 -0.723 -1.765 0.211
H9 -0.574 -0.821 -1.289
C10 1.790 -0.649 -0.050
H11 1.812 -1.694 0.280
H12 1.872 -0.609 -1.142
H13 2.658 -0.134 0.383
C14 0.482 0.026 0.371
H15 0.406 0.003 1.478

Atom - Atom Distances (Å)
  N1 H2 H3 N4 H5 H6 C7 H8 H9 C10 H11 H12 H13 C14 H15
N11.02401.02392.92442.75633.27202.43483.38702.66512.44463.40502.62742.74781.47662.1756
H21.02401.67322.59632.24022.79182.66233.65843.03573.34994.20843.58923.67662.07232.4690
H31.02391.67323.90423.73294.13293.35424.20623.58292.64163.67912.88262.51602.08902.5453
N42.92442.59633.90421.01901.02031.46872.09972.08193.86344.16094.10694.71062.54992.8478
H52.75632.24023.73291.01901.69342.09322.96602.34714.23944.74164.31805.01452.91073.3672
H63.27202.79184.13291.02031.69342.10322.48052.97014.24144.47714.70154.96412.81942.7110
C72.43482.66233.35421.46872.09322.10321.09821.09602.51952.74852.76093.48601.54402.1619
H83.38703.65844.20622.09972.96602.48051.09821.77902.76252.53733.14613.75792.16462.4506
H92.66513.03573.58292.08192.34712.97011.09601.77902.67502.98662.45883.70312.14223.0491
C102.44463.34992.64163.86344.23944.24142.51952.76252.67501.09661.09561.09761.53082.1625
H113.40504.20843.67914.16094.74164.47712.74852.53732.98661.09661.78991.77752.17642.5089
H122.62743.58922.88264.10694.31804.70152.76093.14612.45881.09561.78991.77962.14953.0635
H132.74783.67662.51604.71065.01454.96413.48603.75793.70311.09761.77751.77962.18202.5087
C141.47662.07232.08902.54992.91072.81941.54402.16462.14221.53082.17642.14952.18201.1100
H152.17562.46902.54532.84783.36722.71102.16192.45063.04912.16252.50893.06352.50871.1100

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 107.400 N1 C14 C10 108.736
N1 C14 H15 113.757 H2 N1 H3 109.579
H2 N1 C14 110.624 H3 N1 C14 112.053
N4 C7 H8 108.911 N4 C7 H9 107.651
N4 C7 C14 115.617 H5 N4 H6 112.270
H5 N4 C7 113.341 H6 N4 C7 114.129
C7 C14 C10 110.044 C7 C14 H15 107.969
H8 C7 H9 108.345 H8 C7 C14 108.845
H9 C7 C14 107.252 C10 C14 H15 108.899
H11 C10 H12 109.465 H11 C10 H13 108.209
H11 C10 C14 110.771 H12 C10 H13 108.471
H12 C10 C14 108.721 H13 C10 C14 111.162
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3PW91/3-21G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 N -0.680      
2 H 0.261      
3 H 0.277      
4 N -0.701      
5 H 0.286      
6 H 0.277      
7 C -0.220      
8 H 0.207      
9 H 0.229      
10 C -0.596      
11 H 0.204      
12 H 0.224      
13 H 0.200      
14 C -0.139      
15 H 0.172      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.669 1.319 1.679 2.237
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> 143.629
(<r2>)1/2 11.985