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

using model chemistry: B3PW91/6-31G(2df,p)

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A
Energy calculated at B3PW91/6-31G(2df,p)
 hartrees
Energy at 0K-229.772849
Energy at 298.15K-229.785302
Nuclear repulsion energy195.262470
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 B3PW91/6-31G(2df,p)
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 3603 3464 0.35      
2 A 3593 3455 0.34      
3 A 3514 3378 1.17      
4 A 3510 3375 0.42      
5 A 3129 3008 25.75      
6 A 3114 2994 29.08      
7 A 3086 2967 25.86      
8 A 3040 2922 34.01      
9 A 3032 2915 26.31      
10 A 2912 2799 78.57      
11 A 1657 1593 1.84      
12 A 1646 1582 55.44      
13 A 1495 1438 2.17      
14 A 1483 1426 4.65      
15 A 1468 1411 0.48      
16 A 1412 1358 0.90      
17 A 1400 1346 14.80      
18 A 1392 1338 2.73      
19 A 1373 1320 10.03      
20 A 1337 1285 9.48      
21 A 1264 1215 1.05      
22 A 1204 1157 4.65      
23 A 1174 1128 5.25      
24 A 1124 1081 11.12      
25 A 1049 1008 11.42      
26 A 1024 984 1.29      
27 A 958 921 10.26      
28 A 907 872 94.24      
29 A 884 850 68.54      
30 A 839 806 87.34      
31 A 798 767 65.22      
32 A 491 472 1.27      
33 A 463 446 20.88      
34 A 363 349 5.55      
35 A 357 344 41.84      
36 A 254 244 6.17      
37 A 235 226 26.41      
38 A 215 207 23.34      
39 A 119 114 4.94      

Unscaled Zero Point Vibrational Energy (zpe) 30457.3 cm-1
Scaled (by 0.9614) Zero Point Vibrational Energy (zpe) 29281.6 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 B3PW91/6-31G(2df,p)
ABC
0.26652 0.11688 0.08921

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3PW91/6-31G(2df,p)

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 0.483 1.386 -0.222
H2 -0.296 1.916 0.157
H3 1.320 1.873 0.080
N4 -2.052 -0.135 0.027
H5 -2.129 0.746 -0.468
H6 -2.180 0.065 1.014
C7 -0.743 -0.729 -0.210
H8 -0.741 -1.740 0.217
H9 -0.618 -0.838 -1.294
C10 1.765 -0.678 -0.031
H11 1.762 -1.711 0.332
H12 1.892 -0.691 -1.119
H13 2.636 -0.176 0.404
C14 0.470 0.034 0.340
H15 0.384 0.038 1.445

Atom - Atom Distances (Å)
  N1 H2 H3 N4 H5 H6 C7 H8 H9 C10 H11 H12 H13 C14 H15
N11.01501.01502.96662.69993.21932.44373.38512.70272.43723.39572.66512.73251.46352.1456
H21.01501.61862.70322.26222.77712.70663.68313.12873.31814.17333.63413.60992.03962.3765
H31.01501.61863.92573.66974.04953.33324.16223.60472.59243.62012.88792.45672.04272.4718
N42.96662.70323.92571.01411.01531.45712.08122.07273.85614.13824.14434.70382.54752.8240
H52.69992.26223.66971.01411.63272.04032.92882.33934.16914.67084.31884.93112.81343.2367
H63.21932.77714.04951.01531.63272.04812.44262.92994.14854.37724.65844.86112.73512.6003
C72.44372.70663.33321.45712.04032.04811.09781.09692.51462.74462.78693.47851.53492.1437
H83.38513.68314.16222.08122.92882.44261.09781.76422.73272.50573.13243.72652.15182.4362
H92.70273.12873.60472.07272.33932.92991.09691.76422.70193.01222.52003.72992.14853.0453
C102.43723.31812.59243.85614.16914.14852.51462.73272.70191.09461.09511.09581.52372.1444
H113.39574.17333.62014.13824.67084.37722.74462.50573.01221.09461.77791.76802.17122.4890
H122.66513.63412.88794.14434.31884.65842.78693.13242.52001.09511.77791.77152.16213.0621
H132.73253.60992.45674.70384.93114.86113.47853.72653.72991.09581.76801.77152.17712.4905
C141.46352.03962.04272.54752.81342.73511.53492.15182.14851.52372.17122.16212.17711.1081
H152.14562.37652.47182.82403.23672.60032.14372.43623.04532.14442.48903.06212.49051.1081

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 109.150 N1 C14 C10 109.329
N1 C14 H15 112.359 H2 N1 H3 105.751
H2 N1 C14 109.420 H3 N1 C14 109.680
N4 C7 H8 108.278 N4 C7 H9 107.662
N4 C7 C14 116.714 H5 N4 H6 107.125
H5 N4 C7 110.009 H6 N4 C7 110.594
C7 C14 C10 110.598 C7 C14 H15 107.300
H8 C7 H9 106.996 H8 C7 C14 108.500
H9 C7 C14 108.294 C10 C14 H15 108.092
H11 C10 H12 108.577 H11 C10 H13 107.645
H11 C10 C14 110.980 H12 C10 H13 107.914
H12 C10 C14 110.228 H13 C10 C14 111.381
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3PW91/6-31G(2df,p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 N -0.560      
2 H 0.233      
3 H 0.245      
4 N -0.564      
5 H 0.250      
6 H 0.240      
7 C -0.147      
8 H 0.121      
9 H 0.133      
10 C -0.441      
11 H 0.138      
12 H 0.149      
13 H 0.130      
14 C -0.001      
15 H 0.074      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.875 1.061 1.559 2.079
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -35.051 -2.516 -0.801
y -2.516 -30.726 1.541
z -0.801 1.541 -32.767
Traceless
 xyz
x -3.304 -2.516 -0.801
y -2.516 3.182 1.541
z -0.801 1.541 0.122
Polar
3z2-r20.243
x2-y2-4.324
xy-2.516
xz-0.801
yz1.541


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 8.022 -0.223 -0.099
y -0.223 7.392 -0.039
z -0.099 -0.039 6.444


<r2> (average value of r2) Å2
<r2> 143.137
(<r2>)1/2 11.964