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

using model chemistry: B1B95/6-31G(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 B1B95/6-31G(2df,p)
 hartrees
Energy at 0K-229.726015
Energy at 298.15K-229.738450
Nuclear repulsion energy195.971396
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 B1B95/6-31G(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 3611 3458 0.36      
2 A 3603 3451 0.31      
3 A 3523 3374 0.82      
4 A 3518 3369 0.44      
5 A 3142 3009 23.97      
6 A 3127 2995 27.85      
7 A 3096 2965 27.07      
8 A 3050 2921 29.41      
9 A 3042 2913 29.50      
10 A 2924 2801 75.47      
11 A 1657 1586 2.01      
12 A 1643 1574 55.64      
13 A 1495 1431 1.94      
14 A 1482 1419 4.59      
15 A 1467 1405 0.41      
16 A 1413 1353 0.86      
17 A 1398 1339 15.29      
18 A 1388 1329 2.75      
19 A 1370 1312 9.36      
20 A 1333 1277 10.56      
21 A 1260 1207 1.07      
22 A 1203 1152 3.74      
23 A 1177 1127 6.27      
24 A 1130 1082 11.76      
25 A 1043 999 10.03      
26 A 1027 983 1.33      
27 A 959 919 9.11      
28 A 905 867 89.23      
29 A 878 841 62.36      
30 A 838 803 80.83      
31 A 794 760 80.52      
32 A 488 467 1.47      
33 A 457 438 18.75      
34 A 360 345 29.49      
35 A 354 339 21.11      
36 A 255 244 6.17      
37 A 234 224 32.69      
38 A 218 209 14.91      
39 A 117 112 6.65      

Unscaled Zero Point Vibrational Energy (zpe) 30487.9 cm-1
Scaled (by 0.9577) Zero Point Vibrational Energy (zpe) 29198.2 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 B1B95/6-31G(2df,p)
ABC
0.26855 0.11813 0.09011

See section I.F.4 to change rotational constant units
Geometric Data calculated at B1B95/6-31G(2df,p)

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 0.459 1.380 -0.220
H2 -0.321 1.899 0.166
H3 1.293 1.878 0.068
N4 -2.039 -0.138 0.020
H5 -2.101 0.738 -0.485
H6 -2.171 0.074 1.003
C7 -0.734 -0.739 -0.200
H8 -0.734 -1.742 0.239
H9 -0.601 -0.860 -1.280
C10 1.766 -0.662 -0.036
H11 1.776 -1.693 0.324
H12 1.881 -0.670 -1.123
H13 2.633 -0.151 0.391
C14 0.470 0.033 0.344
H15 0.390 0.037 1.447

Atom - Atom Distances (Å)
  N1 H2 H3 N4 H5 H6 C7 H8 H9 C10 H11 H12 H13 C14 H15
N11.01361.01352.93292.65313.18102.43123.37362.69542.43033.38642.65262.72771.45972.1415
H21.01361.61712.66852.22292.72982.69443.66513.12763.30894.16163.62033.60222.03372.3686
H31.01351.61713.89493.62354.01613.32094.15303.59262.58543.61262.87382.45282.03882.4710
N42.93292.66853.89491.01291.01391.45352.07952.06873.84074.13024.11744.68652.53552.8222
H52.65312.22293.62351.01291.63032.03262.92302.33164.13674.64674.27154.89602.79193.2293
H63.18102.72984.01611.01391.63032.04312.43912.92414.13764.37734.63584.84812.72232.5994
C72.43122.69443.32091.45352.03262.04311.09551.09502.50592.73512.77343.46841.53022.1395
H83.37363.66514.15302.07952.92302.43911.09551.76172.73722.51153.13723.72732.14812.4269
H92.69543.12763.59262.06872.33162.92411.09501.76172.68122.98572.49413.70902.14133.0374
C102.43033.30892.58543.84074.13674.13762.50592.73722.68121.09241.09301.09351.51872.1405
H113.38644.16163.61264.13024.64674.37732.73512.51152.98571.09241.77491.76572.16462.4853
H122.65263.62032.87384.11744.27154.63582.77343.13722.49411.09301.77491.76882.15373.0544
H132.72773.60222.45284.68654.89604.84813.46843.72733.70901.09351.76571.76882.17132.4865
C141.45972.03372.03882.53552.79192.72231.53022.14812.14131.51872.16462.15372.17131.1057
H152.14152.36862.47102.82223.22932.59942.13952.42693.03742.14052.48533.05442.48651.1057

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 108.789 N1 C14 C10 109.349
N1 C14 H15 112.453 H2 N1 H3 105.833
H2 N1 C14 109.300 H3 N1 C14 109.734
N4 C7 H8 108.515 N4 C7 H9 107.701
N4 C7 C14 116.352 H5 N4 H6 107.100
H5 N4 C7 109.701 H6 N4 C7 110.526
C7 C14 C10 110.548 C7 C14 H15 107.427
H8 C7 H9 107.076 H8 C7 C14 108.663
H9 C7 C14 108.167 C10 C14 H15 108.265
H11 C10 H12 108.617 H11 C10 H13 107.756
H11 C10 C14 110.934 H12 C10 H13 107.989
H12 C10 C14 110.032 H13 C10 C14 111.408
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B1B95/6-31G(2df,p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 N -0.544      
2 H 0.224      
3 H 0.236      
4 N -0.549      
5 H 0.240      
6 H 0.231      
7 C -0.117      
8 H 0.108      
9 H 0.120      
10 C -0.400      
11 H 0.125      
12 H 0.136      
13 H 0.117      
14 C 0.012      
15 H 0.061      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.896 1.056 1.539 2.070
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -35.046 -2.444 -0.852
y -2.444 -30.751 1.499
z -0.852 1.499 -32.790
Traceless
 xyz
x -3.276 -2.444 -0.852
y -2.444 3.167 1.499
z -0.852 1.499 0.109
Polar
3z2-r20.217
x2-y2-4.295
xy-2.444
xz-0.852
yz1.499


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 7.996 -0.217 -0.105
y -0.217 7.380 -0.038
z -0.105 -0.038 6.424


<r2> (average value of r2) Å2
<r2> 141.981
(<r2>)1/2 11.916