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All results from a given calculation for CH3CH2CH2CH3 (Butane)

using model chemistry: MP4/Def2TZVPP

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes Anti 1Ag
Energy calculated at MP4/Def2TZVPP
 hartrees
Energy at 0K-158.155776
Energy at 298.15K-158.166366
HF Energy-157.359379
Nuclear repulsion energy130.734617
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 MP4/Def2TZVPP
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
Au 109 109        
Au 224 224        
Bu 254 254        
Bg 259 259        
Ag 422 422        
Au 734 734        
Bg 805 805        
Ag 849 849        
Au 955 955        
Bu 976 976        
Bu 1032 1032        
Ag 1083 1083        
Ag 1173 1173        
Bg 1212 1212        
Au 1289 1289        
Bu 1314 1314        
Bg 1332 1332        
Ag 1393 1393        
Ag 1412 1412        
Bu 1413 1413        
Ag 1488 1488        
Bu 1494 1494        
Bg 1504 1504        
Au 1506 1506        
Ag 1510 1510        
Bu 1513 1513        
Ag 3021 3021        
Bu 3029 3029        
Bu 3033 3033        
Ag 3034 3034        
Bg 3051 3051        
Au 3073 3073        
Bg 3107 3107        
Au 3110 3110        
Ag 3113 3113        
Bu 3114 3114        

Unscaled Zero Point Vibrational Energy (zpe) 28970.2 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 28970.2 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 MP4/Def2TZVPP
ABC
0.78085 0.12170 0.11419

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP4/Def2TZVPP

Point Group is C2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.424 0.636 0.000
C2 0.424 -0.636 0.000
C3 0.424 1.907 0.000
C4 -0.424 -1.907 0.000
H5 -1.080 0.629 0.877
H6 -1.080 0.629 -0.877
H7 1.080 -0.629 0.877
H8 1.080 -0.629 -0.877
H9 -0.196 2.805 0.000
H10 1.068 1.943 0.883
H11 1.068 1.943 -0.883
H12 0.196 -2.805 0.000
H13 -1.068 -1.943 0.883
H14 -1.068 -1.943 -0.883

Atom - Atom Distances (Å)
  C1 C2 C3 C4 H5 H6 H7 H8 H9 H10 H11 H12 H13 H14
C11.52821.52802.54221.09541.09542.15212.15212.18132.17132.17133.49612.80052.8005
C21.52822.54221.52802.15212.15211.09541.09543.49612.80052.80052.18132.17132.1713
C31.52802.54223.90642.15972.15972.76212.76211.09191.09301.09304.71714.22194.2219
C42.54221.52803.90642.76212.76212.15972.15974.71714.22194.22191.09191.09301.0930
H51.09542.15212.15972.76211.75462.49983.05412.50712.51813.07213.76722.57213.1165
H61.09542.15212.15972.76211.75463.05412.49982.50713.07212.51813.76723.11652.5721
H72.15211.09542.76212.15972.49983.05411.75463.76722.57213.11652.50712.51813.0721
H82.15211.09542.76212.15973.05412.49981.75463.76723.11652.57212.50713.07212.5181
H92.18133.49611.09194.71712.50712.50713.76723.76721.76651.76655.62374.90744.9074
H102.17132.80051.09304.22192.51813.07212.57213.11651.76651.76504.90744.43444.7728
H112.17132.80051.09304.22193.07212.51813.11652.57211.76651.76504.90744.77284.4344
H123.49612.18134.71711.09193.76723.76722.50712.50715.62374.90744.90741.76651.7665
H132.80052.17134.22191.09302.57213.11652.51813.07214.90744.43444.77281.76651.7650
H142.80052.17134.22191.09303.11652.57213.07212.51814.90744.77284.43441.76651.7650

picture of Butane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C4 112.568 C1 C2 H7 109.109
C1 C2 H8 109.109 C1 C3 H9 111.648
C1 C3 H11 110.778 C1 C3 H12 30.952
C2 C1 C3 112.568 C2 C1 H5 109.109
C2 C1 H6 109.109 C2 C4 H10 17.329
C2 C4 H13 110.778 C2 C4 H14 110.778
C3 C1 H5 109.720 C3 C1 H6 109.720
C4 C2 H7 109.720 C4 C2 H8 109.720
H5 C1 H6 106.425 H7 C2 H8 106.425
H9 C3 H11 107.898 H9 C3 H12 142.600
H10 C4 H13 94.004 H10 C4 H14 114.040
H11 C3 H12 93.541 H13 C4 H14 107.685
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability