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All results from a given calculation for CH3CHCHCH3 (2-Butene, (Z)-)

using model chemistry: B1B95/6-31G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at B1B95/6-31G**
 hartrees
Energy at 0K-157.133270
Energy at 298.15K-157.140920
Nuclear repulsion energy117.719484
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 B1B95/6-31G**
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 3182 3038 59.53      
2 A 3160 3017 5.43      
3 A 3054 2916 13.70      
4 A 1771 1691 3.60      
5 A 1495 1428 4.97      
6 A 1415 1351 5.15      
7 A 1292 1234 0.02      
8 A 1016 970 0.62      
9 A 883 843 0.59      
10 A 256 245 0.00      
11 A 3110 2970 0.00      
12 A 1485 1418 0.00      
13 A 1055 1007 0.00      
14 A 1009 964 0.00      
15 A 394 376 0.00      
16 A 140 134 0.00      
17 A 3111 2970 43.38      
18 A 1490 1423 11.06      
19 A 1062 1014 1.01      
20 A 698 666 34.75      
21 A 127 121 1.05      
22 A 3164 3021 20.11      
23 A 3148 3006 0.87      
24 A 3052 2914 40.63      
25 A 1493 1425 2.37      
26 A 1445 1380 9.11      
27 A 1384 1322 2.74      
28 A 1158 1106 0.71      
29 A 994 949 15.75      
30 A 564 538 7.81      

Unscaled Zero Point Vibrational Energy (zpe) 23804.0 cm-1
Scaled (by 0.9548) Zero Point Vibrational Energy (zpe) 22728.1 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 B1B95/6-31G**
ABC
0.54674 0.17043 0.13646

See section I.F.4 to change rotational constant units
Geometric Data calculated at B1B95/6-31G**

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.667 0.663
C2 0.000 -0.667 0.663
C3 0.000 1.581 -0.520
C4 0.000 -1.581 -0.520
H5 0.000 1.166 1.630
H6 0.000 -1.166 1.630
H7 0.000 1.046 -1.470
H8 0.000 -1.046 -1.470
H9 -0.877 2.236 -0.506
H10 0.877 2.236 -0.506
H11 0.877 -2.236 -0.506
H12 -0.877 -2.236 -0.506

Atom - Atom Distances (Å)
  C1 C2 C3 C4 H5 H6 H7 H8 H9 H10 H11 H12
C11.33481.49482.54081.08842.07312.16602.73542.14432.14433.25083.2508
C21.33482.54081.49482.07311.08842.73542.16603.25083.25082.14432.1443
C31.49482.54083.16252.19013.48891.09052.79321.09511.09513.91723.9172
C42.54081.49483.16253.48892.19012.79321.09053.91723.91721.09511.0951
H51.08842.07312.19013.48892.33223.10253.80822.54542.54544.11234.1123
H62.07311.08843.48892.19012.33223.80823.10254.11234.11232.54542.5454
H72.16602.73541.09052.79323.10253.80822.09111.76551.76553.53133.5313
H82.73542.16602.79321.09053.80823.10252.09113.53133.53131.76551.7655
H92.14433.25081.09513.91722.54544.11231.76553.53131.75494.80474.4727
H102.14433.25081.09513.91722.54544.11231.76553.53131.75494.47274.8047
H113.25082.14433.91721.09514.11232.54543.53131.76554.80474.47271.7549
H123.25082.14433.91721.09514.11232.54543.53131.76554.47274.80471.7549

picture of 2-Butene, (Z)- state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C4 127.688 C1 C2 H6 117.271
C1 C3 H7 112.885 C1 C3 H9 110.828
C1 C3 H10 110.828 C2 C1 C3 127.688
C2 C1 H5 117.271 C2 C4 H8 112.885
C2 C4 H11 110.828 C2 C4 H12 110.828
C3 C1 H5 115.040 C4 C2 H6 115.040
H7 C3 H9 107.763 H7 C3 H10 107.763
H8 C4 H11 107.763 H8 C4 H12 107.763
H9 C3 H10 106.497 H11 C4 H12 106.497
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B1B95/6-31G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.089      
2 C -0.089      
3 C -0.396      
4 C -0.396      
5 H 0.100      
6 H 0.100      
7 H 0.122      
8 H 0.122      
9 H 0.132      
10 H 0.132      
11 H 0.132      
12 H 0.132      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.000 0.000 -0.201 0.201
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -27.444 0.000 0.000
y 0.000 -24.482 0.000
z 0.000 0.000 -25.530
Traceless
 xyz
x -2.438 0.000 0.000
y 0.000 2.005 0.000
z 0.000 0.000 0.433
Polar
3z2-r20.865
x2-y2-2.962
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.378 0.000 0.000
y 0.000 8.889 0.000
z 0.000 0.000 6.032


<r2> (average value of r2) Å2
<r2> 98.646
(<r2>)1/2 9.932