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	hartrees
Energy at 0K	-263.500868
Energy at 298.15K	-263.506618
HF Energy	-262.645377
Nuclear repulsion energy	207.138241

Mode Number	Symmetry	Frequency (cm^-1)	Scaled Frequency (cm^-1)	IR Intensities (km mol^-1)
1	A₁	3262	3074	3.89
2	A₁	3242	3054	0.97
3	A₁	1636	1541	6.82
4	A₁	1504	1417	3.00
5	A₁	1317	1241	0.00
6	A₁	1201	1132	0.19
7	A₁	1109	1045	8.39
8	A₁	1002	944	6.77
9	A₁	680	640	2.49
10	A₂	948	893	0.00
11	A₂	935	881	0.00
12	A₂	706	665	0.00
13	A₂	362	341	0.00
14	B₁	951	896	0.01
15	B₁	764	720	41.01
16	B₁	371	349	9.73
17	B₂	3252	3064	16.25
18	B₂	3236	3049	4.31
19	B₂	1632	1538	5.87
20	B₂	1455	1371	18.01
21	B₂	1327	1251	2.36
22	B₂	1106	1042	1.95
23	B₂	1070	1008	1.16
24	B₂	629	593	0.01

Atom	y (Å)	z (Å)
C1	0.692	1.182
C2	-0.692	1.182
C3	-1.324	-0.063
C4	1.324	-0.063
H5	1.271	2.101
H6	-1.271	2.101
H7	-2.408	-0.149
H8	2.408	-0.149
N9	0.674	-1.237
N10	-0.674	-1.237

	C1	C2	C3	C4	H5	H6	H7	H8	N9	N10
C1		1.3847	2.3699	1.3960	1.0860	2.1677	3.3736	2.1709	2.4191	2.7781
C2	1.3847		1.3960	2.3699	2.1677	1.0860	2.1709	3.3736	2.7781	2.4191
C3	2.3699	1.3960		2.6489	3.3790	2.1644	1.0870	3.7335	2.3176	1.3426
C4	1.3960	2.3699	2.6489		2.1644	3.3790	3.7335	1.0870	1.3426	2.3176
H5	1.0860	2.1677	3.3790	2.1644		2.5419	4.3120	2.5202	3.3911	3.8632
H6	2.1677	1.0860	2.1644	3.3790	2.5419		2.5202	4.3120	3.8632	3.3911
H7	3.3736	2.1709	1.0870	3.7335	4.3120	2.5202		4.8161	3.2685	2.0479
H8	2.1709	3.3736	3.7335	1.0870	2.5202	4.3120	4.8161		2.0479	3.2685
N9	2.4191	2.7781	2.3176	1.3426	3.3911	3.8632	3.2685	2.0479		1.3473
N10	2.7781	2.4191	1.3426	2.3176	3.8632	3.3911	2.0479	3.2685	1.3473

atom1	atom2	atom3	angle	atom1	atom2	atom3	angle
C1	C2	C3	116.923	C1	C2	H6	122.193
C1	C4	H8	121.427	C1	C4	N9	124.083
C2	C1	C4	116.923	C2	C1	H5	122.193
C2	C3	H7	121.427	C2	C3	N10	124.083
C3	C2	H6	120.884	C3	N10	N9	118.993
C4	C1	H5	120.884	C4	N9	N10	118.993
H7	C3	N10	114.489	H8	C4	N9	114.489

All results from a given calculation for C₄H₄N₂ (Pyridazine)

using model chemistry: MP2=FULL/6-31G*

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: MP2=FULL/6-31G*

States and conformations

All results from a given calculation for C₄H₄N₂ (Pyridazine)