return to home page Computational Chemistry Comparison and Benchmark DataBase Release 22 (May 2022) Standard Reference Database 101 National Institute of Standards and Technology
You are here: Calculated > Energy > Optimized > Energy

All results from a given calculation for C(NH2)H2CH2CH2CH3 (1-Butanamine)

using model chemistry: MP2=FULL/3-21G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at MP2=FULL/3-21G*
 hartrees
Energy at 0K-211.625522
Energy at 298.15K-211.638258
Nuclear repulsion energy183.527281
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 MP2=FULL/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' 3419 3241 2.03      
2 A' 3154 2990 31.07      
3 A' 3088 2927 51.34      
4 A' 3080 2920 23.69      
5 A' 3077 2917 9.48      
6 A' 3059 2900 9.20      
7 A' 1759 1668 17.59      
8 A' 1607 1523 4.62      
9 A' 1596 1513 1.34      
10 A' 1585 1503 0.19      
11 A' 1578 1496 0.58      
12 A' 1493 1415 3.42      
13 A' 1430 1356 2.25      
14 A' 1427 1353 2.05      
15 A' 1348 1277 1.08      
16 A' 1169 1108 6.14      
17 A' 1084 1028 9.86      
18 A' 1049 994 3.52      
19 A' 994 942 32.86      
20 A' 915 868 2.20      
21 A' 807 765 236.22      
22 A' 430 408 5.55      
23 A' 397 376 0.28      
24 A' 182 173 2.48      
25 A" 3520 3337 1.44      
26 A" 3157 2993 59.38      
27 A" 3140 2977 36.02      
28 A" 3119 2957 4.24      
29 A" 3096 2935 1.65      
30 A" 1603 1520 6.81      
31 A" 1432 1358 1.81      
32 A" 1394 1321 0.19      
33 A" 1371 1300 0.00      
34 A" 1296 1229 0.04      
35 A" 1098 1041 0.63      
36 A" 967 916 0.00      
37 A" 818 775 0.99      
38 A" 757 718 4.00      
39 A" 314 297 62.39      
40 A" 259 246 0.05      
41 A" 129 122 0.86      
42 A" 113 107 2.68      

Unscaled Zero Point Vibrational Energy (zpe) 33654.9 cm-1
Scaled (by 0.948) Zero Point Vibrational Energy (zpe) 31904.8 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 MP2=FULL/3-21G*
ABC
0.58333 0.06336 0.06031

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2=FULL/3-21G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 2.574 0.382 0.000
C2 1.336 -0.457 0.000
C3 0.000 0.333 0.000
C4 -1.239 -0.595 0.000
C5 -2.568 0.201 0.000
H6 2.603 0.978 0.833
H7 2.603 0.978 -0.833
H8 1.373 -1.104 0.884
H9 1.373 -1.104 -0.884
H10 -0.031 0.982 -0.887
H11 -0.031 0.982 0.887
H12 -1.199 -1.244 0.884
H13 -1.199 -1.244 -0.884
H14 -3.432 -0.473 0.000
H15 -2.627 0.840 0.888
H16 -2.627 0.840 -0.888

Atom - Atom Distances (Å)
  N1 C2 C3 C4 C5 H6 H7 H8 H9 H10 H11 H12 H13 H14 H15 H16
N11.49562.57453.93605.14561.02411.02412.10522.10522.81632.81634.20284.20286.06625.29645.2964
C21.49561.55232.57863.95982.08742.08741.09601.09602.17392.17392.79802.79804.76784.26394.2639
C32.57451.55231.54792.57182.80802.80802.17542.17541.09911.09912.16972.16973.52492.81942.8194
C43.93602.57861.54791.55014.23404.23402.80422.80422.17542.17541.09771.09772.19622.18572.1857
C55.14563.95982.57181.55015.29535.29534.24544.24542.79902.79902.17892.17891.09541.09561.0956
H61.02412.08742.80804.23405.29531.66552.41822.96523.14542.63454.40414.72666.26215.23245.5079
H71.02412.08742.80804.23405.29531.66552.96522.41822.63453.14544.72664.40416.26215.50795.2324
H82.10521.09602.17542.80424.24542.41822.96521.76813.07542.51462.57623.12474.92624.44814.7881
H92.10521.09602.17542.80424.24542.96522.41821.76812.51463.07543.12472.57624.92624.78814.4481
H102.81632.17391.09912.17542.79903.14542.63453.07542.51461.77313.07522.51423.80363.14822.6002
H112.81632.17391.09912.17542.79902.63453.14542.51463.07541.77312.51423.07523.80362.60023.1482
H124.20282.79802.16971.09772.17894.40414.72662.57623.12473.07522.51421.76842.52222.52703.0866
H134.20282.79802.16971.09772.17894.72664.40413.12472.57622.51423.07521.76842.52223.08662.5270
H146.06624.76783.52492.19621.09546.26216.26214.92624.92623.80363.80362.52222.52221.77771.7777
H155.29644.26392.81942.18571.09565.23245.50794.44814.78813.14822.60022.52703.08661.77771.7763
H165.29644.26392.81942.18571.09565.50795.23244.78814.44812.60023.14823.08662.52701.77771.7763

picture of 1-Butanamine state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
N1 C2 C3 115.262 N1 C2 H8 107.645
N1 C2 H9 107.645 C2 N1 H6 110.472
C2 N1 H7 110.472 C2 C3 C4 112.560
C2 C3 H10 108.950 C2 C3 H11 108.950
C3 C2 H8 109.243 C3 C2 H9 109.243
C3 C4 C5 112.230 C3 C4 H12 109.009
C3 C4 H13 109.009 C4 C3 H10 109.364
C4 C3 H11 109.364 C4 C5 H14 111.070
C4 C5 H15 110.226 C4 C5 H16 110.226
C5 C4 H12 109.573 C5 C4 H13 109.573
H6 N1 H7 108.806 H8 C2 H9 107.530
H10 C3 H11 107.525 H12 C4 H13 107.320
H14 C5 H15 108.461 H14 C5 H16 108.461
H15 C5 H16 108.323
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability