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 C5H8 (1,3-Pentadiene, (Z)-)

using model chemistry: LSDA/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 LSDA/6-31G**
 hartrees
Energy at 0K-194.194811
Energy at 298.15K-194.202192
HF Energy-194.194811
Nuclear repulsion energy156.194753
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 LSDA/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' 3189 3129 7.30      
2 A' 3103 3045 28.04      
3 A' 3091 3033 0.32      
4 A' 3086 3028 10.13      
5 A' 3083 3025 4.98      
6 A' 3073 3016 0.65      
7 A' 2974 2918 16.32      
8 A' 1711 1679 11.90      
9 A' 1656 1625 1.65      
10 A' 1436 1409 6.87      
11 A' 1418 1391 19.90      
12 A' 1361 1336 4.29      
13 A' 1337 1312 4.50      
14 A' 1261 1238 0.77      
15 A' 1240 1217 1.75      
16 A' 1166 1144 2.15      
17 A' 1034 1015 0.21      
18 A' 955 937 19.80      
19 A' 897 880 1.98      
20 A' 602 591 7.33      
21 A' 380 373 4.47      
22 A' 220 216 0.25      
23 A" 3035 2978 8.56      
24 A" 1417 1390 9.05      
25 A" 1008 989 1.29      
26 A" 1002 983 9.66      
27 A" 950 932 1.37      
28 A" 879 863 47.56      
29 A" 783 768 4.81      
30 A" 628 616 25.84      
31 A" 347 340 0.02      
32 A" 168 165 0.09      
33 A" 132 130 1.06      

Unscaled Zero Point Vibrational Energy (zpe) 24309.5 cm-1
Scaled (by 0.9813) Zero Point Vibrational Energy (zpe) 23854.9 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 LSDA/6-31G**
ABC
0.52937 0.08983 0.07791

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 2.375 0.145 0.000
C2 1.080 -0.204 0.000
C3 0.000 0.743 0.000
C4 -1.314 0.449 0.000
C5 -1.916 -0.902 0.000
H6 2.672 1.200 0.000
H7 3.177 -0.599 0.000
H8 0.818 -1.272 0.000
H9 0.298 1.801 0.000
H10 -2.022 1.289 0.000
H11 -1.163 -1.706 0.000
H12 -2.565 -1.049 0.883
H13 -2.565 -1.049 -0.883

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 H6 H7 H8 H9 H10 H11 H12 H13
C11.34092.44913.70134.41661.09671.09352.10462.65664.54363.99275.15795.1579
C21.34091.43672.48163.07632.12312.13351.09942.15273.44302.69963.84433.8443
C32.44911.43671.34642.52552.71113.44862.17491.09942.09472.71143.25103.2510
C43.70132.48161.34641.47944.05644.61142.74012.10411.09842.16052.14192.1419
C54.41663.07632.52551.47945.04705.10182.75913.49452.19331.10141.10531.1053
H61.09672.12312.71114.05645.04701.86823.09022.44914.69564.81225.76775.7677
H71.09352.13353.44864.61145.10181.86822.45293.74795.53124.47915.82675.8267
H82.10461.09942.17492.74012.75913.09022.45293.11713.82432.02843.50363.5036
H92.65662.15271.09942.10413.49452.44913.74793.11712.37663.79974.13524.1352
H104.54363.44302.09471.09842.19334.69565.53123.82432.37663.11552.55662.5566
H113.99272.69962.71142.16051.10144.81224.47912.02843.79973.11551.78221.7822
H125.15793.84433.25102.14191.10535.76775.82673.50364.13522.55661.78221.7652
H135.15793.84433.25102.14191.10535.76775.82673.50364.13522.55661.78221.7652

picture of 1,3-Pentadiene, (Z)- state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C3 123.667 C1 C2 H8 118.858
C2 C1 H6 120.819 C2 C1 H7 122.104
C2 C3 C4 126.132 C2 C3 H9 115.519
C3 C2 H8 117.476 C3 C4 C5 126.626
C3 C4 H10 117.556 C4 C3 H9 118.349
C4 C5 H11 112.867 C4 C5 H12 111.104
C4 C5 H13 111.104 C5 C4 H10 115.818
H6 C1 H7 117.077 H11 C5 H12 107.733
H11 C5 H13 107.733 H12 C5 H13 105.977
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at LSDA/6-31G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.327      
2 C -0.036      
3 C -0.088      
4 C -0.106      
5 C -0.468      
6 H 0.122      
7 H 0.126      
8 H 0.100      
9 H 0.102      
10 H 0.114      
11 H 0.142      
12 H 0.159      
13 H 0.159      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.601 -0.251 0.000 0.651
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -28.541 0.255 0.000
y 0.255 -29.230 0.000
z 0.000 0.000 -34.227
Traceless
 xyz
x 3.188 0.255 0.000
y 0.255 2.153 0.000
z 0.000 0.000 -5.341
Polar
3z2-r2-10.682
x2-y20.690
xy0.255
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 14.604 0.816 0.000
y 0.816 7.597 0.000
z 0.000 0.000 3.959


<r2> (average value of r2) Å2
<r2> 153.742
(<r2>)1/2 12.399