Enthalpy of formation (Hfg), Entropy, Integrated heat capacity (0 K to 298.15 K) (HH), Heat Capacity (Cp)

Property	Value	Uncertainty	units	Reference	Comment
Hfg(298.15K)	-54.86	0.92	kJ mol-1	webbook
Hfg(0K)		0.92	kJ mol-1	webbook
Entropy (298.15K)			J K-1 mol-1
Integrated Heat Capacity (0 to 298.15K)			kJ mol-1

Information can also be found for this species in the NIST Chemistry Webbook

Vibrational levels (cm^-1)

Mode Number	Symmetry	Frequency (cm-1)	Frequency Reference	Intensity (km mol-1)	Int. unc.	Intensity Reference	Comment

Calculated vibrational frequencies for C₅H₁₁N (Cyclopentanamine).

Rotational Constants (cm^-1)
See section I.F.4 to change rotational constant units

A	B	C	reference	comment

Calculated rotational constants for C₅H₁₁N (Cyclopentanamine).

Product of moments of inertia
	amu3Å6		0	gm3 cm6

Geometric Data

Point Group C_s

Internal coordinates
distances (r) in Å, angles (a) in degrees, dihedrals (d) in degrees

Description	Value	unc.	Connectivity				Reference	Comment
			Atom 1	Atom 2	Atom 3	Atom 4

Cartesians

Atom	x (Å)	y (Å)	z (Å)

Atom - Atom Distances
Distances in Å
Calculated geometries for C₅H₁₁N (Cyclopentanamine).

Bond descriptions
Examples: C-C single bond, C=C, double bond, C#C triple bond, C:C aromatic bond

Bond Type	Count
H-C	9
H-N	2
C-C	5
C-N	1

Connectivity

Atom 1	Atom 2
N1	C2
N1	H4
N1	H5
C2	H3
C2	C8
C2	C9
C6	C7
C6	C9
C6	H11
C6	H12
C7	C8
C7	H10
C7	H13
C8	H14
C8	H16
C9	H15
C9	H17

Electronic energy levels (cm^-1)

Energy	Degeneracy	squib
0	1

Ionization Energies (eV)

Ionization Energy	I.E. unc.	vertical I.E.	v.I.E. unc.	Electron Affinity	E.A. unc.	reference

Dipole, Quadrupole and Polarizability
Electric dipole moment
Calculated electric dipole moments for C₅H₁₁N (Cyclopentanamine).
Electric quadrupole moment
Calculated electric quadrupole moments for C₅H₁₁N (Cyclopentanamine).

References

squib	reference
webbook	NIST Chemistry Webbook (http://webbook.nist.gov/chemistry)

Got a better number? Please email us at cccbdb@nist.gov