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	hartrees
Energy at 0K	-113.735669
Energy at 298.15K
HF Energy	-113.386860
Nuclear repulsion energy	36.776135

Mode Number	Symmetry	Frequency (cm^-1)	Scaled Frequency (cm^-1)
1	A₁	1221	1221
2	A₁	141	141
3	B₂	2163	2163

Atom	y (Å)	z (Å)
C1	0.000	0.063
C2	1.292	-0.031
C3	-1.292	-0.031

	C1	C2	C3
C1		1.2957	1.2957
C2	1.2957		2.5846
C3	1.2957	2.5846

Number	Element	Mulliken
1	C	-0.238
2	C	0.119
3	C	0.119

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

using model chemistry: ROMP2/TZVP

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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<r²>	31.729
(<r²>)^1/2	5.633

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

using model chemistry: ROMP2/TZVP

States and conformations

Conformer 1 (D*H)

Conformer 2 (C2V)

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