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	hartrees
Energy at 0K	-262.699951
Energy at 298.15K	-262.706111
Nuclear repulsion energy	210.529179

Mode Number	Symmetry	Frequency (cm^-1)	Scaled Frequency (cm^-1)	IR Intensities (km mol^-1)
1	A₁	3385	3061	9.75
2	A₁	3364	3042	4.26
3	A₁	1778	1608	8.31
4	A₁	1625	1470	1.07
5	A₁	1276	1154	0.34
6	A₁	1220	1104	7.99
7	A₁	1164	1052	8.01
8	A₁	1043	943	16.26
9	A₁	736	665	4.97
10	A₂	1127	1019	0.00
11	A₂	1045	945	0.00
12	A₂	834	754	0.00
13	A₂	432	391	0.00
14	B₁	1086	983	0.00
15	B₁	845	765	52.00
16	B₁	448	405	9.91
17	B₂	3374	3051	43.94
18	B₂	3354	3033	1.86
19	B₂	1783	1612	1.76
20	B₂	1578	1428	27.87
21	B₂	1437	1300	4.14
22	B₂	1162	1051	1.51
23	B₂	1138	1030	2.37
24	B₂	682	617	0.02

Atom	y (Å)	z (Å)
C1	0.683	1.169
C2	-0.683	1.169
C3	-1.308	-0.077
C4	1.308	-0.077
H5	1.261	2.074
H6	-1.261	2.074
H7	-2.379	-0.164
H8	2.379	-0.164
N9	0.654	-1.209
N10	-0.654	-1.209

	C1	C2	C3	C4	H5	H6	H7	H8	N9	N10
C1		1.3659	2.3488	1.3941	1.0741	2.1447	3.3396	2.1573	2.3788	2.7285
C2	1.3659		1.3941	2.3488	2.1447	1.0741	2.1573	3.3396	2.7285	2.3788
C3	2.3488	1.3941		2.6163	3.3511	2.1517	1.0743	3.6881	2.2654	1.3080
C4	1.3941	2.3488	2.6163		2.1517	3.3511	3.6881	1.0743	1.3080	2.2654
H5	1.0741	2.1447	3.3511	2.1517		2.5227	4.2734	2.5019	3.3394	3.8014
H6	2.1447	1.0741	2.1517	3.3511	2.5227		2.5019	4.2734	3.8014	3.3394
H7	3.3396	2.1573	1.0743	3.6881	4.2734	2.5019		4.7579	3.2079	2.0170
H8	2.1573	3.3396	3.6881	1.0743	2.5019	4.2734	4.7579		2.0170	3.2079
N9	2.3788	2.7285	2.2654	1.3080	3.3394	3.8014	3.2079	2.0170		1.3078
N10	2.7285	2.3788	1.3080	2.2654	3.8014	3.3394	2.0170	3.2079	1.3078

atom1	atom2	atom3	angle	atom1	atom2	atom3	angle
C1	C2	C3	116.645	C1	C2	H6	122.579
C1	C4	H8	121.304	C1	C4	N9	123.341
C2	C1	C4	116.645	C2	C1	H5	122.579
C2	C3	H7	121.304	C2	C3	N10	123.341
C3	C2	H6	120.776	C3	N10	N9	120.014
C4	C1	H5	120.776	C4	N9	N10	120.014
H7	C3	N10	115.355	H8	C4	N9	115.355

All results from a given calculation for C₄H₄N₂ (Pyridazine)

using model chemistry: HF/6-311G*

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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Number	Element	Mulliken	CHELPG	ESP
1	C	-0.239	-0.173	-0.243
2	C	-0.239	-0.173	-0.243
3	C	-0.023	0.398	0.432
4	C	-0.023	0.398	0.432
5	H	0.237	0.126	0.165
6	H	0.237	0.126	0.165
7	H	0.243	-0.019	-0.009
8	H	0.243	-0.019	-0.009
9	N	-0.218	-0.333	-0.345
10	N	-0.218	-0.333	-0.345

<r²>	113.883
(<r²>)^1/2	10.672

All results from a given calculation for C4H4N2 (Pyridazine)

using model chemistry: HF/6-311G*

States and conformations

All results from a given calculation for C₄H₄N₂ (Pyridazine)