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	hartrees
Energy at 0K	-44.771019
Energy at 298.15K	-44.776780
Nuclear repulsion energy	104.656028

Mode Number	Symmetry	Frequency (cm^-1)	Scaled Frequency (cm^-1)	IR Intensities (km mol^-1)
1	A₁	3188	3090	15.31
2	A₁	3164	3067	1.47
3	A₁	1589	1540	5.54
4	A₁	1464	1419	0.91
5	A₁	1168	1132	0.00
6	A₁	1158	1122	0.01
7	A₁	1075	1042	13.91
8	A₁	987	957	7.22
9	A₁	666	646	2.59
10	A₂	1009	978	0.00
11	A₂	936	908	0.00
12	A₂	745	722	0.00
13	A₂	371	360	0.00
14	B₁	964	935	0.06
15	B₁	763	740	49.15
16	B₁	374	363	8.05
17	B₂	3175	3078	37.37
18	B₂	3158	3061	9.77
19	B₂	1583	1535	3.94
20	B₂	1418	1375	17.00
21	B₂	1299	1259	2.37
22	B₂	1065	1032	1.37
23	B₂	1037	1005	0.83
24	B₂	621	602	0.00

Atom	y (Å)	z (Å)
C1	0.696	1.174
C2	-0.696	1.174
C3	-1.331	-0.084
C4	1.331	-0.084
H5	1.279	2.093
H6	-1.279	2.093
H7	-2.417	-0.169
H8	2.417	-0.169
N9	0.674	-1.257
N10	-0.674	-1.257

	C1	C2	C3	C4	H5	H6	H7	H8	N9	N10
C1		1.3924	2.3861	1.4096	1.0886	2.1790	3.3911	2.1835	2.4310	2.7904
C2	1.3924		1.4096	2.3861	2.1790	1.0886	2.1835	3.3911	2.7904	2.4310
C3	2.3861	1.4096		2.6618	3.3995	2.1783	1.0898	3.7493	2.3223	1.3439
C4	1.4096	2.3861	2.6618		2.1783	3.3995	3.7493	1.0898	1.3439	2.3223
H5	1.0886	2.1790	3.3995	2.1783		2.5590	4.3344	2.5327	3.4043	3.8779
H6	2.1790	1.0886	2.1783	3.3995	2.5590		2.5327	4.3344	3.8779	3.4043
H7	3.3911	2.1835	1.0898	3.7493	4.3344	2.5327		4.8348	3.2768	2.0549
H8	2.1835	3.3911	3.7493	1.0898	2.5327	4.3344	4.8348		2.0549	3.2768
N9	2.4310	2.7904	2.3223	1.3439	3.4043	3.8779	3.2768	2.0549		1.3475
N10	2.7904	2.4310	1.3439	2.3223	3.8779	3.4043	2.0549	3.2768	1.3475

atom1	atom2	atom3	angle	atom1	atom2	atom3	angle
C1	C2	C3	116.761	C1	C2	H6	122.402
C1	C4	H8	121.232	C1	C4	N9	123.965
C2	C1	C4	116.761	C2	C1	H5	122.402
C2	C3	H7	121.232	C2	C3	N10	123.965
C3	C2	H6	120.837	C3	N10	N9	119.273
C4	C1	H5	120.837	C4	N9	N10	119.273
H7	C3	N10	114.802	H8	C4	N9	114.802

All results from a given calculation for C₄H₄N₂ (Pyridazine)

using model chemistry: B3LYP/CEP-121G*

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
1	C	-0.077
2	C	-0.077
3	C	-0.353
4	C	-0.353
5	H	0.224
6	H	0.224
7	H	0.186
8	H	0.186
9	N	0.020
10	N	0.020

<r²>	94.782
(<r²>)^1/2	9.736

All results from a given calculation for C4H4N2 (Pyridazine)

using model chemistry: B3LYP/CEP-121G*

States and conformations

All results from a given calculation for C₄H₄N₂ (Pyridazine)