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	hartrees
Energy at 0K	-264.017340
Energy at 298.15K	-264.023176
HF Energy	-264.017340
Nuclear repulsion energy	208.306397

Mode Number	Symmetry	Frequency (cm^-1)	Scaled Frequency (cm^-1)	IR Intensities (km mol^-1)
1	A₁	3241	3094	6.05
2	A₁	3220	3074	0.28
3	A₁	1641	1567	4.44
4	A₁	1498	1431	1.17
5	A₁	1238	1182	0.56
6	A₁	1179	1126	0.16
7	A₁	1113	1063	15.24
8	A₁	1040	993	5.85
9	A₁	682	652	2.32
10	A₂	1021	975	0.00
11	A₂	946	904	0.00
12	A₂	771	736	0.00
13	A₂	372	355	0.00
14	B₁	987	943	0.02
15	B₁	764	730	49.00
16	B₁	375	358	9.42
17	B₂	3230	3084	18.36
18	B₂	3213	3068	2.94
19	B₂	1639	1565	3.43
20	B₂	1448	1382	19.01
21	B₂	1322	1262	1.97
22	B₂	1095	1046	0.31
23	B₂	1058	1010	0.81
24	B₂	631	603	0.00

Atom	y (Å)	z (Å)
C1	0.691	1.177
C2	-0.691	1.177
C3	-1.319	-0.068
C4	1.319	-0.068
H5	1.271	2.095
H6	-1.271	2.095
H7	-2.402	-0.157
H8	2.402	-0.157
N9	0.662	-1.228
N10	-0.662	-1.228

	C1	C2	C3	C4	H5	H6	H7	H8	N9	N10
C1		1.3820	2.3649	1.3952	1.0856	2.1663	3.3686	2.1698	2.4051	2.7592
C2	1.3820		1.3952	2.3649	2.1663	1.0856	2.1698	3.3686	2.7592	2.4051
C3	2.3649	1.3952		2.6384	3.3750	2.1636	1.0864	3.7223	2.2951	1.3327
C4	1.3952	2.3649	2.6384		2.1636	3.3750	3.7223	1.0864	1.3327	2.2951
H5	1.0856	2.1663	3.3750	2.1636		2.5429	4.3087	2.5196	3.3778	3.8437
H6	2.1663	1.0856	2.1636	3.3750	2.5429		2.5196	4.3087	3.8437	3.3778
H7	3.3686	2.1698	1.0864	3.7223	4.3087	2.5196		4.8040	3.2453	2.0433
H8	2.1698	3.3686	3.7223	1.0864	2.5196	4.3087	4.8040		2.0433	3.2453
N9	2.4051	2.7592	2.2951	1.3327	3.3778	3.8437	3.2453	2.0433		1.3233
N10	2.7592	2.4051	1.3327	2.2951	3.8437	3.3778	2.0433	3.2453	1.3233

atom1	atom2	atom3	angle	atom1	atom2	atom3	angle
C1	C2	C3	116.762	C1	C2	H6	122.324
C1	C4	H8	121.445	C1	C4	N9	123.673
C2	C1	C4	116.762	C2	C1	H5	122.324
C2	C3	H7	121.445	C2	C3	N10	123.673
C3	C2	H6	120.913	C3	N10	N9	119.565
C4	C1	H5	120.913	C4	N9	N10	119.565
H7	C3	N10	114.882	H8	C4	N9	114.882

All results from a given calculation for C₄H₄N₂ (Pyridazine)

using model chemistry: HSEh1PBE/6-31+G**

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	0.093
2	C	0.093
3	C	-0.363
4	C	-0.363
5	H	0.176
6	H	0.176
7	H	0.172
8	H	0.172
9	N	-0.079
10	N	-0.079

<r²>	115.820
(<r²>)^1/2	10.762

All results from a given calculation for C4H4N2 (Pyridazine)

using model chemistry: HSEh1PBE/6-31+G**

States and conformations

All results from a given calculation for C₄H₄N₂ (Pyridazine)