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	hartrees
Energy at 0K	-262.496979
Energy at 298.15K	-262.502625
Nuclear repulsion energy	204.139901

Mode Number	Symmetry	Frequency (cm^-1)	Scaled Frequency (cm^-1)	IR Intensities (km mol^-1)
1	A₁	3158	3129	4.20
2	A₁	3121	3093	2.41
3	A₁	1548	1534	8.20
4	A₁	1400	1387	7.62
5	A₁	1187	1177	0.23
6	A₁	1111	1101	2.65
7	A₁	1023	1014	1.28
8	A₁	834	826	2.47
9	A₁	668	662	1.58
10	A₂	1018	1009	0.00
11	A₂	933	925	0.00
12	A₂	758	751	0.00
13	A₂	341	338	0.00
14	B₁	977	968	0.23
15	B₁	749	742	56.25
16	B₁	346	343	8.32
17	B₂	3141	3112	12.26
18	B₂	3118	3089	13.30
19	B₂	1510	1496	4.70
20	B₂	1400	1387	20.38
21	B₂	1266	1255	1.45
22	B₂	1054	1045	1.92
23	B₂	1005	996	0.31
24	B₂	617	612	0.11

Atom	y (Å)	z (Å)
C1	0.696	1.194
C2	-0.696	1.194
C3	-1.340	-0.059
C4	1.340	-0.059
H5	1.277	2.119
H6	-1.277	2.119
H7	-2.432	-0.119
H8	2.432	-0.119
N9	0.705	-1.259
N10	-0.705	-1.259

	C1	C2	C3	C4	H5	H6	H7	H8	N9	N10
C1		1.3923	2.3909	1.4089	1.0918	2.1789	3.3924	2.1764	2.4527	2.8248
C2	1.3923		1.4089	2.3909	2.1789	1.0918	2.1764	3.3924	2.8248	2.4527
C3	2.3909	1.4089		2.6802	3.4046	2.1786	1.0934	3.7724	2.3711	1.3571
C4	1.4089	2.3909	2.6802		2.1786	3.4046	3.7724	1.0934	1.3571	2.3711
H5	1.0918	2.1789	3.4046	2.1786		2.5538	4.3315	2.5181	3.4252	3.9159
H6	2.1789	1.0918	2.1786	3.4046	2.5538		2.5181	4.3315	3.9159	3.4252
H7	3.3924	2.1764	1.0934	3.7724	4.3315	2.5181		4.8636	3.3376	2.0687
H8	2.1764	3.3924	3.7724	1.0934	2.5181	4.3315	4.8636		2.0687	3.3376
N9	2.4527	2.8248	2.3711	1.3571	3.4252	3.9159	3.3376	2.0687		1.4105
N10	2.8248	2.4527	1.3571	2.3711	3.9159	3.4252	2.0687	3.3376	1.4105

atom1	atom2	atom3	angle	atom1	atom2	atom3	angle
C1	C2	C3	117.197	C1	C2	H6	122.136
C1	C4	H8	120.342	C1	C4	N9	124.912
C2	C1	C4	117.197	C2	C1	H5	122.136
C2	C3	H7	120.342	C2	C3	N10	124.912
C3	C2	H6	120.667	C3	N10	N9	117.891
C4	C1	H5	120.667	C4	N9	N10	117.891
H7	C3	N10	114.746	H8	C4	N9	114.746

All results from a given calculation for C₄H₄N₂ (Pyridazine)

using model chemistry: PBEPBE/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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Number	Element	Mulliken
1	C	-0.209
2	C	-0.209
3	C	0.028
4	C	0.028
5	H	0.221
6	H	0.221
7	H	0.240
8	H	0.240
9	N	-0.280
10	N	-0.280

<r²>	119.274
(<r²>)^1/2	10.921

All results from a given calculation for C4H4N2 (Pyridazine)

using model chemistry: PBEPBE/3-21G

States and conformations

All results from a given calculation for C₄H₄N₂ (Pyridazine)