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All results from a given calculation for NH(C2H5)2 (diethylamine)

using model chemistry: QCISD/6-31G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at QCISD/6-31G
 hartrees
Energy at 0K-212.761339
Energy at 298.15K-212.774010
HF Energy-212.218113
Nuclear repulsion energy185.837546
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/6-31G
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' 3458 3332 3.03      
2 A' 3099 2986 56.11      
3 A' 3074 2962 76.82      
4 A' 3023 2913 51.59      
5 A' 3006 2897 15.69      
6 A' 2899 2793 165.88      
7 A' 1583 1525 0.19      
8 A' 1553 1496 2.81      
9 A' 1543 1487 11.47      
10 A' 1467 1413 4.09      
11 A' 1450 1397 0.04      
12 A' 1332 1284 2.59      
13 A' 1271 1225 3.53      
14 A' 1186 1143 9.67      
15 A' 1064 1026 2.92      
16 A' 915 882 7.34      
17 A' 847 816 0.85      
18 A' 726 699 113.28      
19 A' 427 412 0.49      
20 A' 256 247 1.59      
21 A' 186 179 1.38      
22 A' 103 99 1.98      
23 A" 3099 2986 9.25      
24 A" 3073 2961 23.87      
25 A" 3020 2910 1.07      
26 A" 3005 2896 31.57      
27 A" 2894 2789 9.62      
28 A" 1573 1516 1.36      
29 A" 1556 1499 1.96      
30 A" 1548 1492 12.14      
31 A" 1529 1473 13.48      
32 A" 1464 1410 9.91      
33 A" 1399 1348 28.07      
34 A" 1314 1267 3.90      
35 A" 1165 1123 30.06      
36 A" 1151 1109 27.05      
37 A" 1088 1049 1.10      
38 A" 953 919 0.82      
39 A" 836 806 0.54      
40 A" 430 415 0.68      
41 A" 256 246 0.82      
42 A" 108 104 1.55      

Unscaled Zero Point Vibrational Energy (zpe) 32963.4 cm-1
Scaled (by 0.9636) Zero Point Vibrational Energy (zpe) 31763.5 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/6-31G
ABC
0.57042 0.06811 0.06406

See section I.F.4 to change rotational constant units
Geometric Data calculated at QCISD/6-31G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 0.016 -0.264 0.000
C2 0.016 0.535 1.250
C3 0.016 0.535 -1.250
C4 0.016 -0.389 2.485
C5 0.016 -0.389 -2.485
H6 -0.747 -0.947 0.000
H7 -0.846 1.241 1.305
H8 0.931 1.153 1.244
H9 -0.846 1.241 -1.305
H10 0.931 1.153 -1.244
H11 0.065 0.199 3.416
H12 -0.903 -1.001 2.518
H13 0.882 -1.068 2.444
H14 0.065 0.199 -3.416
H15 -0.903 -1.001 -2.518
H16 0.882 -1.068 -2.444

Atom - Atom Distances (Å)
  N1 C2 C3 C4 C5 H6 H7 H8 H9 H10 H11 H12 H13 H14 H15 H16
N11.48311.48312.48792.48791.02442.16992.09622.16992.09623.44762.78012.71503.44762.78012.7150
C21.48312.49951.54253.84712.08351.11501.10452.78722.72782.19262.19392.17874.67814.17144.1189
C31.48312.49953.84711.54252.08352.78722.72781.11501.10454.67814.17144.11892.19262.19392.1787
C42.48791.54253.84714.96932.65842.18862.18074.21464.13811.10291.10471.10135.93025.12315.0501
C52.48793.84711.54254.96932.65844.21464.13812.18862.18075.93025.12315.05011.10291.10471.1013
H61.02442.08352.08352.65842.65842.54972.96262.54972.96263.69372.52342.93973.69372.52342.9397
H72.16991.11502.78722.18864.21462.54971.77992.61053.10892.52362.54953.10044.91974.43244.7300
H82.09621.10452.72782.18074.13812.96261.77993.10892.48892.52493.10302.52514.83534.70774.3061
H92.16992.78721.11504.21462.18862.54972.61053.10891.77994.91974.43244.73002.52362.54953.1004
H102.09622.72781.10454.13812.18072.96263.10892.48891.77994.83534.70774.30612.52493.10302.5251
H113.44762.19264.67811.10295.93023.69372.52362.52494.91974.83531.78481.79426.83206.13126.0510
H122.78012.19394.17141.10475.12312.52342.54953.10304.43244.70771.78481.78816.13125.03605.2739
H132.71502.17874.11891.10135.05012.93973.10042.52514.73004.30611.79421.78816.05105.27394.8882
H143.44764.67812.19265.93021.10293.69374.91974.83532.52362.52496.83206.13126.05101.78481.7942
H152.78014.17142.19395.12311.10472.52344.43244.70772.54953.10306.13125.03605.27391.78481.7881
H162.71504.11892.17875.05011.10132.93974.73004.30613.10042.52516.05105.27394.88821.79421.7881

picture of diethylamine state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
N1 C2 C4 110.607 N1 C2 H7 112.503
N1 C2 H8 107.299 N1 C3 C5 110.607
N1 C3 H9 112.503 N1 C3 H10 107.299
C2 N1 C3 114.843 C2 N1 H6 111.062
C2 C4 H11 110.863 C2 C4 H12 110.858
C2 C4 H13 109.870 C3 N1 H6 111.062
C3 C5 H14 110.863 C3 C5 H15 110.858
C3 C5 H16 109.870 C4 C2 H7 109.842
C4 C2 H8 109.833 C5 C3 H8 150.208
C5 C3 H10 109.833 H7 C2 H8 106.628
H9 C3 H10 106.628 H11 C4 H12 107.898
H11 C4 H13 108.970 H12 C4 H13 108.310
H14 C5 H15 107.898 H14 C5 H16 108.970
H15 C5 H16 108.310
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability