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State	Conformation	minimum conformation	conformer description	state description
1	1	yes	D*H	¹Σ_g
1	2	no	C2V	¹A₁

	hartrees
Energy at 0K	-114.085751
Energy at 298.15K
HF Energy	-114.085751
Nuclear repulsion energy	36.986949

Mode Number	Symmetry	Frequency (cm^-1)	Scaled Frequency (cm^-1)	IR Intensities (km mol^-1)
1	Σ_g	1240	1199	0.00
2	Σ_u	2148	2076	841.42
3	Π_u	105	101	18.38
3	Π_u	105	101	18.38

Atom	x (Å)	y (Å)	z (Å)
C1	0.000	0.000	0.000
C2	0.000	0.000	1.288
C3	0.000	0.000	-1.288

	C1	C2	C3
C1		1.2876	1.2876
C2	1.2876		2.5753
C3	1.2876	2.5753

All results from a given calculation for C₃ (carbon trimer)

using model chemistry: B3LYP/cc-pVTZ

States and conformations

Conformer 1 (D*H)

Conformer 2 (C2V)

	Computational Chemistry Comparison and Benchmark DataBase Release 22 (May 2022) Standard Reference Database 101 National Institute of Standards and Technology
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Number	Element	Mulliken
1	C	-0.101
2	C	0.050
3	C	0.050

<r²>	31.486
(<r²>)^1/2	5.611

	C1	C2	C3
C1		1.2875	1.2875
C2	1.2875		2.5751
C3	1.2875	2.5751

Number	Element	Mulliken
1	C	-0.101
2	C	0.050
3	C	0.050

All results from a given calculation for C3 (carbon trimer)

using model chemistry: B3LYP/cc-pVTZ

States and conformations

Conformer 1 (D*H)

Conformer 2 (C2V)

All results from a given calculation for C₃ (carbon trimer)