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CAS Number


 

pyridazine (C4H4N2)

Compound Descriptions:

Structure Drawing
Formula:C4H4N2
Molecular Weight:80.088 g/mol
Name(s):pyridazine
1,2-Diazin
1,2-Diazabenzene
1,2-Diazine
o-Diazine
Orthodiazine
CAS-RN:289-80-5
EINECS:206-025-5 EINECS
Classification:no charge; nitrogen heterocycle; aromatic; 6RingOnly; 6ring; 1fragment

European Regulations

1 matching entries in european regulations: ECHA-pre

Landolt-Börnstein Citations:

Acoustical and Optical Properties

Magnetic Properties

Mechanical Properties

Spectroscopic Methods

Structure and Molecular Constants

 Molecular Constants Mostly From Microwave, Molecular Beam, Electro Spin Resonance and Sub-Doppler Laser Spectroscopy: Vol. II/6 2.5:298II/6
 Molecular Constants Mostly From Microwave, Molecular Beam, Electro Spin Resonance and Sub-Doppler Laser Spectroscopy: Vol. II/6 2.6.3:158II/6
 Molecular Constants Mostly From Microwave, Molecular Beam, Electro Spin Resonance and Sub-Doppler Laser Spectroscopy: Vol. II/6 2.7.3:48II/6
 Structure Data of Free Polyatomic Molecules: Vol. II/25c 3:1552II/25C

References

II/25C
Short: II/25C
Title: Structure Data Of Free Polyatomic Molecules: Molecules containing Three or Four Carbon Atoms
Author: Graner, G.; Hirota, E.; Iijima, T.; Kuchitsu, K.; Ramsay, D.A.; Vogt, J.; Vogt, N.
Editor: Kuchitsu, K.
Source: Landolt-Börnstein, New Series
Volume: II/25C
Year: 2001
Keyword: Free Polyatomic Molecules; Carbon Atoms; Molecules
ISBN: 3-540-66774-1
ISBN: 978-3-540-66774-2
Internet Resource: DOI:10.1007/b71431
RefComment: VIII, 481 pages. Hardcover
Abstract: This volume contains data on the geometric parameters (internuclear distances, bond angles, dihedral angles of internal rotation etc.) of free polyatomic molecules including free radicals and molecular ions. This survey on structure data is made of four subvolume, each containing the geometric parameters determined in the gas phase either by an analysis of the rotational constants (and sometimes the vibrational constants) obtained from microwave, infrared, Raman, electronic and photoelectron spectroscopy or by an analysis of electron diffraction intensities. Most of the structures listed in the tables are for molecules in the electronic ground state, but structures for electronically excited states have also been included as far as they are available. In this third subvolume, the structure of molecules containing three for four carbon atoms are listed.
II/27B
Short: II/27B
Title: Diamagnetic Susceptibility of Organic Compounds, Oils, Paraffins and Polyethylenes
Author: Kumar, M.; Gupta, R.
Editor: Gupta, Radha Raman
Source: Landolt-Börnstein, New Series
Volume: II/27B
Year: 2008
Keyword: diamagnetic susceptibility; organic compounds
ISBN: 978-3-540-44359-9 (print)
ISBN: 978-3-540-45860-9 (online)
Internet Resource: doi:10.1007/978-3-540-45860-9
RefComment: VIII, 503 p. With CD-ROM., Hardcover
RefComment: Written for: Scientists and researchers in the fields of physics, chemistry, materials science
RefComment: Supplement and Revised Editon to II/16
Abstract: The volume II/27 has been divided into three subvolumes according to the classes of compounds: Subvolume A: Diamagnetic susceptibility and magnetic anisotropy of inorganic and organometallic compounds; Subvolume B: Diamagnetic susceptibility of organic compounds, oils, paraffins and polyethylenes; Subvolume C: Diamagnetic susceptibility and magnetic anisotropy of organic compounds. The data presented in this volume are based on the literature survey of the chemical abstracts up to 2005. The calculated values of diamagnetic susceptibility of organic compounds in the present subvolume II/27B are presented along with their experimental values. They have been calculated with the use of structural parameters in structural formula by using different theoretical methods available in the literature.
II/27C
Short: II/27C
Title: Diamagnetic Susceptibility and Magnetic Anisotropy of Organic Compounds
Author: Kumar, Mahendra; Gupta, Rajni
Editor: Gupta, Radha Raman
Source: Landolt-Börnstein, New Series
Volume: II/27C
Year: 2008
Keyword: diamagnetic susceptibility; magnetic anisotropy; organic compounds
ISBN: 978-3-540-44734-4 (print)
ISBN: 978-3-540-44736-8 (online)
Internet Resource: doi:10.1007/978-3-540-44736-8
RefComment: VIII, 204 p., Hardcover
RefComment: Written for: Scientists and researchers in the fields of physics, chemistry, materials science
RefComment: Supplement and Revised Editon to II/16
Abstract: The volume II/27 has been divided into three subvolumes according to the classes of compounds: Subvolume A: Diamagnetic susceptibility and magnetic anisotropy of inorganic and organometallic compounds; Subvolume B: Diamagnetic susceptibility of organic compounds (Part 1); Subvolume C: Diamagnetic susceptibility and magnetic anisotropy of organic compounds (Part 2). The data presented in this volume are based on the literature survey of the chemical abstracts up to 2005.
II/6
Short: II/6
Title: Molecular Constants from Microwave, Molecular Beam, and Electron Spin Resonance Spectroscopy
Author: Demaison, J.; Hüttner, W.; Starck, B.; Buck, I.; Tischer, R.; Winnewisser, M.
Editor: Hellwege, K.-H.; Hellwege, A.M.
Source: Landolt-Börnstein, New Series
Volume: II/6
Year: 1974
Keyword: organic compounds; molecular constants; spectroscopy; microwave spectroscopy
ISBN: 3-540-05977-6
ISBN: 978-3-540-05977-6
Internet Resource: DOI:10.1007/b19951
RefComment: 153 figs., XIII, 688 pages
III/20a
Short: III/20a
Title: Nuclear Quadrupole Resonance Spectroscopy Data: Nuclei D ... Cl
Author: Chihara, H.; Nakamura, N.
Editor: Hellwege, K.-H.; Hellwege, A.M.
Source: Landolt-Börnstein, New Series
Volume: III/20a
Year: 1988
Keyword: NQR
ISBN: 3-540-18161-X
ISBN: 978-3-540-18161-3
Internet Resource: DOI:10.1007/b31153
RefComment: IX,677 pages. Hardcover
Abstract: Nuclear Quadrupole Resonance Spectroscopy has become a standard method for structural research in molecular and solid state physics as well as for different branches of chemistry. The volumes cover data for more than 8,000 substances in the solid state. Data for free molecules have been published in volumes II/14 and II/15 of the New Series. The tables are arranged according to the atomic number of the elements.
III/38B
Short: III/38B
Title: Refractive Indices of Organic Liquids
Author: Wohlfarth, Ch.; Wohlfarth, B.
Editor: Lechner, M.D.
Source: Landolt-Börnstein, New Series
Volume: III/38B
Year: 1996
Keyword: organic compounds; refractive index; liquids
ISBN: 3-540-60596-7
ISBN: 978-3-540-60596-6
Internet Resource: DOI:10.1007/b85533
RefComment: VII, 4210 pages, Hardcover
Abstract: Volume III/38 Optical Constants provides critically evaluated data on refractive indices of inorganic and organic liquids and their wavelength dependence (dispension). Part A contains the inorganic, organometallic, and organononmetallic liquids, and the binary liquid mixtures (about 900 pure substances and their mixtures). Part B contains data of more than 7600 organic liquids.
IV/16
Short: IV/16
Title: Surface tension of pure liquids and binary mixtures
Author: Wohlfarth, Ch.; Wohlfarth, B.
Editor: Lechner, M.D.
Source: Landolt-Börnstein, New Series
Volume: IV/16
Year: 1997
Keyword: organic compounds; surface tension; liquids; mixtures
ISBN: 3-540-63276-X
ISBN: 978-3-540-63276-4
Internet Resource: DOI:10.1007/b60566
RefComment: VII, 439 pages.
IV/18B
Short: IV/18B
Title: Viscosity of Pure Organic Liquids and Binary Liquid Mixtures: Pure Organic Liquids
Author: Wohlfarth, Ch.; Wohlfarth, B.
Editor: Lechner, M.D.
Source: Landolt-Börnstein, New Series
Volume: IV/18B
Year: 2001
Keyword: organic compounds; viscosity; liquids; mixtures
Internet Resource: DOI:10.1007/b68240
RefComment: VII, 409 pages.
EINECS
Short: EINECS
Title: EINECS (European Inventory of Existing Commercial Chemical Substances)
Source: Official Journal of the European Communities
Volume: C 146 A (15.06.1990)
Page: 1
Year: 1990
Publish_Date: 1990/06/15

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