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

using model chemistry: QCISD/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 QCISD/3-21G
 hartrees
Energy at 0K-227.580880
Energy at 298.15K-227.593355
HF Energy-227.034058
Nuclear repulsion energy192.758648
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 QCISD/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 3479 3371 1.96      
2 A 3451 3344 3.95      
3 A 3373 3269 4.59      
4 A 3362 3259 6.13      
5 A 3105 3010 30.62      
6 A 3088 2993 15.74      
7 A 3083 2988 28.33      
8 A 3032 2939 32.15      
9 A 3022 2929 16.37      
10 A 2922 2832 63.36      
11 A 1740 1687 0.13      
12 A 1734 1681 42.50      
13 A 1581 1532 4.45      
14 A 1569 1520 4.15      
15 A 1543 1495 1.15      
16 A 1467 1422 9.04      
17 A 1438 1393 1.76      
18 A 1432 1387 7.40      
19 A 1407 1364 5.98      
20 A 1381 1338 5.98      
21 A 1299 1259 1.05      
22 A 1241 1203 3.97      
23 A 1169 1133 0.75      
24 A 1090 1056 8.31      
25 A 1070 1037 5.97      
26 A 1030 998 4.90      
27 A 956 926 16.74      
28 A 908 880 16.53      
29 A 867 840 104.10      
30 A 798 774 108.11      
31 A 754 731 158.72      
32 A 491 476 3.62      
33 A 461 447 30.22      
34 A 382 370 58.44      
35 A 367 356 4.86      
36 A 260 252 3.59      
37 A 245 238 6.01      
38 A 218 211 74.64      
39 A 105 102 13.66      

Unscaled Zero Point Vibrational Energy (zpe) 30457.8 cm-1
Scaled (by 0.9692) Zero Point Vibrational Energy (zpe) 29519.7 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 QCISD/3-21G
ABC
0.26083 0.11407 0.08731

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

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 0.453 1.401 -0.211
H2 -0.354 1.922 0.154
H3 1.308 1.914 0.038
N4 -2.072 -0.137 0.020
H5 -2.157 0.744 -0.497
H6 -2.243 0.025 1.020
C7 -0.731 -0.759 -0.214
H8 -0.744 -1.777 0.202
H9 -0.585 -0.824 -1.301
C10 1.806 -0.658 -0.043
H11 1.828 -1.706 0.290
H12 1.890 -0.620 -1.138
H13 2.668 -0.134 0.396
C14 0.479 0.018 0.373
H15 0.397 0.007 1.480

Atom - Atom Distances (Å)
  N1 H2 H3 N4 H5 H6 C7 H8 H9 C10 H11 H12 H13 C14 H15
N11.02751.02812.96552.70593.26742.46233.42052.68572.46953.43422.64692.76251.50162.1919
H21.02751.66592.68552.24972.81402.73203.71983.11613.37054.23573.62813.66292.09012.4471
H31.02811.66593.95413.69574.14083.37114.22643.58782.62173.66622.85342.48482.09692.5588
N42.96552.68553.95411.02531.02681.49672.11792.10433.91294.21234.15554.75482.58012.8720
H52.70592.24973.69571.02531.68042.09072.97332.36124.22754.74334.31784.98442.86903.3123
H63.26742.81404.14081.02681.68042.10322.48232.97574.24114.48334.70624.95302.79802.6801
C72.46232.73203.37111.49672.09072.10321.10041.09852.54402.77472.78173.50901.55282.1745
H83.42053.71984.22642.11792.97332.48231.10041.78732.79462.57413.17313.79152.17832.4732
H92.68573.11613.58782.10432.36122.97571.09851.78732.70653.02232.48843.73342.15483.0642
C102.46953.37052.62173.91294.22754.24112.54402.79462.70651.09961.09861.10071.54582.1784
H113.43424.23573.66624.21234.74334.48332.77472.57413.02231.09961.79531.78542.19022.5291
H122.64693.62812.85344.15554.31784.70622.78173.17312.48841.09861.79531.78732.16293.0777
H132.76253.66292.48484.75484.98444.95303.50903.79153.73341.10071.78541.78732.19422.5201
C141.50162.09012.09692.58012.86902.79801.55282.17832.15481.54582.19022.16292.19421.1099
H152.19192.44712.55882.87203.31232.68012.17452.47323.06422.17842.52913.07772.52011.1099

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 107.434 N1 C14 C10 108.251
N1 C14 H15 113.288 H2 N1 H3 108.273
H2 N1 C14 110.053 H3 N1 C14 110.580
N4 C7 H8 108.311 N4 C7 H9 107.364
N4 C7 C14 115.564 H5 N4 H6 109.939
H5 N4 C7 110.601 H6 N4 C7 111.550
C7 C14 C10 110.370 C7 C14 H15 108.359
H8 C7 H9 108.745 H8 C7 C14 109.185
H9 C7 C14 107.492 C10 C14 H15 109.126
H11 C10 H12 109.517 H11 C10 H13 108.474
H11 C10 C14 110.639 H12 C10 H13 108.719
H12 C10 C14 108.573 H13 C10 C14 110.888
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability