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	hartrees
Energy at 0K	-262.525762
Energy at 298.15K	-262.531641
HF Energy	-262.525762
Nuclear repulsion energy	206.506644

Mode Number	Symmetry	Frequency (cm^-1)	Scaled Frequency (cm^-1)	IR Intensities (km mol^-1)
1	A₁	3257	3138	1.46
2	A₁	3231	3112	2.41
3	A₁	1618	1558	9.24
4	A₁	1459	1406	8.58
5	A₁	1225	1181	0.27
6	A₁	1163	1121	2.64
7	A₁	1075	1035	2.24
8	A₁	909	875	4.73
9	A₁	700	674	2.01
10	A₂	1077	1037	0.00
11	A₂	980	944	0.00
12	A₂	795	766	0.00
13	A₂	376	362	0.00
14	B₁	1032	994	0.09
15	B₁	790	761	61.14
16	B₁	389	375	9.81
17	B₂	3242	3123	12.87
18	B₂	3225	3107	5.10
19	B₂	1585	1527	3.64
20	B₂	1460	1407	24.95
21	B₂	1327	1278	1.95
22	B₂	1099	1058	2.36
23	B₂	1053	1014	0.10
24	B₂	645	621	0.13

Atom	y (Å)	z (Å)
C1	0.690	1.181
C2	-0.690	1.181
C3	-1.329	-0.062
C4	1.329	-0.062
H5	1.269	2.097
H6	-1.269	2.097
H7	-2.410	-0.126
H8	2.410	-0.126
N9	0.690	-1.241
N10	-0.690	-1.241

	C1	C2	C3	C4	H5	H6	H7	H8	N9	N10
C1		1.3805	2.3716	1.3980	1.0829	2.1623	3.3650	2.1605	2.4218	2.7876
C2	1.3805		1.3980	2.3716	2.1623	1.0829	2.1605	3.3650	2.7876	2.4218
C3	2.3716	1.3980		2.6582	3.3778	2.1599	1.0831	3.7400	2.3379	1.3404
C4	1.3980	2.3716	2.6582		2.1599	3.3778	3.7400	1.0831	1.3404	2.3379
H5	1.0829	2.1623	3.3778	2.1599		2.5373	4.2984	2.4989	3.3871	3.8697
H6	2.1623	1.0829	2.1599	3.3778	2.5373		2.4989	4.2984	3.8697	3.3871
H7	3.3650	2.1605	1.0831	3.7400	4.2984	2.4989		4.8207	3.2947	2.0497
H8	2.1605	3.3650	3.7400	1.0831	2.4989	4.2984	4.8207		2.0497	3.2947
N9	2.4218	2.7876	2.3379	1.3404	3.3871	3.8697	3.2947	2.0497		1.3803
N10	2.7876	2.4218	1.3404	2.3379	3.8697	3.3871	2.0497	3.2947	1.3803

atom1	atom2	atom3	angle	atom1	atom2	atom3	angle
C1	C2	C3	117.190	C1	C2	H6	122.285
C1	C4	H8	120.564	C1	C4	N9	124.342
C2	C1	C4	117.190	C2	C1	H5	122.285
C2	C3	H7	120.564	C2	C3	N10	124.342
C3	C2	H6	120.526	C3	N10	N9	118.469
C4	C1	H5	120.526	C4	N9	N10	118.469
H7	C3	N10	115.094	H8	C4	N9	115.094

All results from a given calculation for C₄H₄N₂ (Pyridazine)

using model chemistry: HSEh1PBE/3-21G

States and conformations

	Computational Chemistry Comparison and Benchmark DataBase Release 22 (May 2022) Standard Reference Database 101 National Institute of Standards and Technology
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All results from a given calculation for C4H4N2 (Pyridazine)

using model chemistry: HSEh1PBE/3-21G

States and conformations

All results from a given calculation for C₄H₄N₂ (Pyridazine)