25005-96-3

Basic information

• Product Name: 2,3-BIS(2-PYRIDYL)PYRAZINE
• Synonyms: 2,3-BIS(2-PYRIDYL)PYRAZINE;2,3-DI-2-PYRIDYLPYRAZINE;2,3-Bis(2-pyridyl)pyrazine,2,3-Di-2-pyridylpyrazine;2,3-di(pyridin-2-yl)pyrazine;2,3-Bis(2-pyridyl)pyrazine 98%
• CAS NO: 25005-96-3
• Molecular Formula: C₁₄H₁₀N₄
• Molecular Weight: 234.26
• Mol File: 25005-96-3.mol
• Article Data: 1

Chemical Properties

• Melting Point: 168-170 °C(lit.)
• Boiling Point: 361.6 °C at 760 mmHg
• Flash Point: 159.5 °C
• Appearance: /
• Density: 1.214 g/cm³
• Vapor Pressure: 4.27E-05mmHg at 25°C
• Refractive Index: 1.62
• PKA: -1.22±0.19(Predicted)
• Stability: Stable. Incompatible with strong acids, strong oxidizing agents.
• CAS DataBase Reference: 2,3-BIS(2-PYRIDYL)PYRAZINE(CAS DataBase Reference)
• NIST Chemistry Reference: 2,3-BIS(2-PYRIDYL)PYRAZINE(25005-96-3)
• EPA Substance Registry System: 2,3-BIS(2-PYRIDYL)PYRAZINE(25005-96-3)

Safety Data

• Hazard Codes: Xi
• Statements: 36/37/38
• Safety Statements: 26-37/39
• WGK Germany: 3
• Hazardous Substances Data: 25005-96-3(Hazardous Substances Data)

Usage

Chemical Properties

solid

Uses

2,3-Bis(2-pyridyl)pyrazine (dpp) has been employed:as building block for supermolecular moleculesin the preparation of luminescent complexes Ru(bpy)2(dpp)2+ and (bpy)2Ru-(dpp)Ru(bpp)24+ [bpy=2,2′-bipyridine]in the preparation of binary and ternary systems with V(IV)O and Cu(II) ions

InChI:InChI=1/C14H10N4/c1-3-7-15-11(5-1)13-14(18-10-9-17-13)12-6-2-4-8-16-12/h1-10H

Upstream product

• 366-18-7 [2,2]bipyridinyl 
• 492-73-9 2,2'-Pyridil 
• 25005-95-2 2,3-bis(2'-pyridyl)-5,6-dihydropyrazine 

Downstream Products

• 892568-59-1 [Ru(η5-pentamethylcyclopentadienyl)(triphenylphosphine)(κ2-(2,3-bis(2-pyridyl)pyrazine))] 
• 127666-35-7 {(2,3-bis(2-pyridyl)pyrazine)(triphenylphosphine)2H₂Rh} hexafluorophosphate 
• 122904-99-8 [Os(2,2'-bipyridine)2(2,3-bis(2-pyridyl)pyrazine)]⁽²⁺⁾ 
• 919402-72-5 bis(4,7-diphenyl-1,10-phenanthroline)(2,3-bis(2-pyridyl)pyrazine)ruthenium(II)⁽²⁺⁾ 
• 1426234-16-3 C₁₄H₁₀N₄*C₆H₂F₂O₄ 
• 1426234-14-1 C₁₄H₁₀N₄*C₆H₂Br₂O₄ 
• 1426234-13-0 C₁₄H₁₀N₄*C₆H₂Cl₂O₄ 

Relevant articles and documents

Ru(ii) water oxidation catalysts with 2,3-bis(2-pyridyl)pyrazine and tris(pyrazolyl)methane ligands: Assembly of photo-active and catalytically active subunits in a dinuclear structure

Two mononuclear Ru(ii) complexes, i.e. [RuCl(κ3N-terpy)(κ2N-dpp)]PF6 ([1]PF6; terpy = 2,2′:6′,2′′-terpyridine; dpp = 2,3-bis(2′-pyridyl-pyrazine) and [RuCl(κ3N-tpm)(κ2N-dpp)]Cl ([2]Cl; tpm = tris(1-pyrazolyl)methane), and one dinuclear complex, i.e. [Ru2Cl(κ3N-tpm)(μ-κ2N:κ2N-dpp)Ru(κ2N-bpy)2][PF6]3 ([3][PF6]3; bpy = 2,2′-bipyridine), have been synthesized and their water oxidation catalytic properties have been investigated. A combined DFT and experimental (35Cl NMR and conductivity measurements) study aimed to elucidate the nature of [1]+ and [2]+ in aqueous solution has also been performed, indicating that one water molecule is allowed to enter the first coordination sphere of [2]+ in the ground state, replacing one tpm nitrogen. Conversely, in the case of [1]+, water coordination, assumed to be needed for the water oxidation process, presumably occurs following the oxidation of the metal. For all complexes, a catalytic wave has been detected in acetonitrile/water 1 : 1 (v/v) solution in the range 1.4-1.7 V vs. SCE. In all cases, water oxidation (investigated at pH -1, respectively) of the complexes are higher than those of the benchmark [Ru(LLL)(LL)(OH2)]2+-type species (LLL and LL are tridentate and bidentate polypyridine ligands, respectively), which is [Ru(terpy)(bpm)(OH2)]2+.