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All results from a given calculation for CH3CH(CH3)CN (Propanenitrile, 2-methyl-)

using model chemistry: CCD/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 CCD/3-21G*
 hartrees
Energy at 0K-209.342549
Energy at 298.15K-209.349972
HF Energy-208.828675
Nuclear repulsion energy157.503193
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 CCD/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' 3122 2987 26.36      
2 A' 3117 2982 30.07      
3 A' 3055 2922 3.12      
4 A' 3046 2913 10.79      
5 A' 2315 2214 0.17      
6 A' 1587 1518 12.08      
7 A' 1582 1513 7.07      
8 A' 1490 1425 4.90      
9 A' 1408 1347 2.27      
10 A' 1233 1180 3.56      
11 A' 1183 1131 7.91      
12 A' 925 885 0.23      
13 A' 763 730 0.54      
14 A' 575 550 1.47      
15 A' 369 353 0.20      
16 A' 302 289 0.83      
17 A' 238 228 1.01      
18 A" 3119 2983 12.48      
19 A" 3113 2977 1.54      
20 A" 3044 2911 13.66      
21 A" 1571 1503 3.80      
22 A" 1570 1501 0.11      
23 A" 1472 1408 6.41      
24 A" 1375 1315 0.11      
25 A" 1146 1096 3.21      
26 A" 998 954 1.20      
27 A" 975 933 1.59      
28 A" 600 574 0.36      
29 A" 243 233 0.03      
30 A" 212 203 2.97      

Unscaled Zero Point Vibrational Energy (zpe) 22873.2 cm-1
Scaled (by 0.9565) Zero Point Vibrational Energy (zpe) 21878.3 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 CCD/3-21G*
ABC
0.26084 0.12910 0.09482

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 0.152 -2.233 0.000
C2 -0.104 -1.091 0.000
C3 -0.418 0.357 0.000
C4 0.152 1.032 1.284
C5 0.152 1.032 -1.284
H6 -1.514 0.462 0.000
H7 -0.112 2.098 1.283
H8 -0.259 0.563 2.187
H9 1.246 0.937 1.299
H10 -0.112 2.098 -1.283
H11 -0.259 0.563 -2.187
H12 1.246 0.937 -1.299

Atom - Atom Distances (Å)
  N1 C2 C3 C4 C5 H6 H7 H8 H9 H10 H11 H12
N11.17092.65263.50843.50843.16914.52493.57413.59684.52493.57413.5968
C21.17091.48172.49402.49402.09753.43722.74672.76143.43722.74672.7614
C32.65261.48171.55841.55841.10092.18372.20282.18962.18372.20282.1896
C43.50842.49401.55842.56772.17921.09861.09771.09812.79173.52672.8067
C53.50842.49401.55842.56772.17922.79173.52672.80671.09861.09771.0981
H63.16912.09751.10092.17922.17922.50682.52383.08742.50682.52383.0874
H74.52493.43722.18371.09862.79172.50681.78751.78722.56533.79703.1400
H83.57412.74672.20281.09773.52672.52381.78751.78733.79704.37473.8159
H93.59682.76142.18961.09812.80673.08741.78721.78733.14003.81592.5983
H104.52493.43722.18372.79171.09862.50682.56533.79703.14001.78751.7872
H113.57412.74672.20283.52671.09772.52383.79704.37473.81591.78751.7873
H123.59682.76142.18962.80671.09813.08743.14003.81592.59831.78721.7873

picture of Propanenitrile, 2-methyl- state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
N1 C2 C3 179.554 C2 C3 C4 110.214
C2 C3 C5 110.214 C2 C3 H6 107.704
C3 C4 H7 109.324 C3 C4 H8 110.866
C3 C4 H9 109.808 C3 C5 H10 109.324
C3 C5 H11 110.866 C3 C5 H12 109.808
C4 C3 C5 110.939 C4 C3 H6 108.844
C5 C3 H6 108.844 H7 C4 H8 108.951
H7 C4 H9 108.889 H8 C4 H9 108.968
H10 C5 H11 108.951 H10 C5 H12 108.889
H11 C5 H12 108.968
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability