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

using model chemistry: B3LYP/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 B3LYP/CEP-31G*
 hartrees
Energy at 0K-42.761810
Energy at 298.15K-42.774164
Nuclear repulsion energy112.649090
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 B3LYP/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 3561 3439 0.40      
2 A 3552 3430 0.96      
3 A 3469 3350 4.59      
4 A 3465 3346 1.59      
5 A 3117 3011 56.43      
6 A 3100 2993 55.05      
7 A 3095 2989 33.44      
8 A 3045 2940 57.26      
9 A 3034 2930 25.62      
10 A 2930 2829 98.44      
11 A 1679 1621 22.70      
12 A 1666 1609 38.78      
13 A 1501 1449 3.63      
14 A 1491 1440 5.54      
15 A 1470 1419 1.47      
16 A 1418 1370 2.13      
17 A 1402 1354 11.28      
18 A 1387 1339 4.26      
19 A 1361 1315 12.49      
20 A 1328 1283 11.76      
21 A 1255 1212 0.86      
22 A 1198 1157 8.63      
23 A 1152 1112 7.63      
24 A 1088 1051 12.50      
25 A 1044 1008 14.33      
26 A 1010 976 1.41      
27 A 947 914 15.04      
28 A 917 885 118.11      
29 A 886 856 92.70      
30 A 842 813 64.59      
31 A 792 765 41.05      
32 A 477 461 0.47      
33 A 456 440 27.48      
34 A 358 346 0.86      
35 A 341 330 55.62      
36 A 253 244 13.98      
37 A 240 231 34.04      
38 A 217 209 20.55      
39 A 113 109 6.39      

Unscaled Zero Point Vibrational Energy (zpe) 30327.3 cm-1
Scaled (by 0.9657) Zero Point Vibrational Energy (zpe) 29287.0 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 B3LYP/CEP-31G*
ABC
0.25936 0.11383 0.08695

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/CEP-31G*

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 0.479 1.401 -0.250
H2 -0.309 1.941 0.122
H3 1.321 1.894 0.065
N4 -2.088 -0.175 0.021
H5 -2.167 0.722 -0.467
H6 -2.206 0.017 1.022
C7 -0.744 -0.754 -0.225
H8 -0.734 -1.776 0.198
H9 -0.617 -0.847 -1.318
C10 1.786 -0.676 -0.018
H11 1.799 -1.709 0.373
H12 1.907 -0.713 -1.114
H13 2.659 -0.145 0.405
C14 0.464 0.036 0.345
H15 0.367 0.062 1.454

Atom - Atom Distances (Å)
  N1 H2 H3 N4 H5 H6 C7 H8 H9 C10 H11 H12 H13 C14 H15
N11.02551.02553.02412.73993.27712.47813.42992.71962.46463.43512.69362.75151.48942.1702
H21.02551.63242.76652.29882.84752.75243.74223.15373.35524.22243.67233.63882.06892.4006
H31.02551.63243.98813.71794.10833.37074.20803.63072.61233.64692.92032.46172.06532.4892
N43.02412.76653.98811.02471.02611.48332.10382.09933.90574.19264.18724.76192.58122.8527
H52.73992.29883.71791.02471.64782.06442.95582.36424.21644.72644.36724.97962.83803.2478
H63.27712.84754.10831.02611.64782.07012.46172.95744.18234.40844.69134.90592.75472.6093
C72.47812.75243.37071.48332.06442.07011.10601.10422.53972.78122.79643.51391.55222.1732
H83.42993.74224.20802.10382.95582.46171.10601.78182.75772.53933.13443.76972.17682.4838
H92.71963.15373.63072.09932.36422.95741.10421.78182.73733.07182.53533.76712.17113.0793
C102.46463.35522.61233.90574.21644.18232.53972.75772.73731.10441.10401.10551.54372.1735
H113.43514.22243.64694.19264.72644.40842.78122.53933.07181.10441.79291.78482.19622.5210
H122.69363.67232.92034.18724.36724.69132.79643.13442.53531.10401.79291.78802.18393.0936
H132.75153.63882.46174.76194.97964.90593.51393.76973.76711.10551.78481.78802.20242.5288
C141.48942.06892.06532.58122.83802.75471.55222.17682.17111.54372.19622.18392.20241.1143
H152.17022.40062.48922.85273.24782.60932.17322.48383.07932.17352.52103.09362.52881.1143

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 109.106 N1 C14 C10 108.685
N1 C14 H15 112.117 H2 N1 H3 105.475
H2 N1 C14 109.309 H3 N1 C14 109.014
N4 C7 H8 107.795 N4 C7 H9 107.549
N4 C7 C14 116.481 H5 N4 H6 106.933
H5 N4 C7 109.437 H6 N4 C7 109.824
C7 C14 C10 110.238 C7 C14 H15 108.048
H8 C7 H9 107.444 H8 C7 C14 108.787
H9 C7 C14 108.447 C10 C14 H15 108.642
H11 C10 H12 108.557 H11 C10 H13 107.729
H11 C10 C14 110.973 H12 C10 H13 108.037
H12 C10 C14 110.039 H13 C10 C14 111.398
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/CEP-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 N -0.562      
2 H 0.237      
3 H 0.255      
4 N -0.481      
5 H 0.254      
6 H 0.245      
7 C -0.316      
8 H 0.142      
9 H 0.148      
10 C -0.513      
11 H 0.148      
12 H 0.154      
13 H 0.156      
14 C 0.003      
15 H 0.129      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  1.153 1.173 1.921 2.529
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 8.096 -0.251 -0.093
y -0.251 7.104 -0.135
z -0.093 -0.135 6.158


<r2> (average value of r2) Å2
<r2> 123.011
(<r2>)1/2 11.091