185690-80-6

Basic information

• Product Name: [(N-methylimidazole)(N⁽²⁾,N(2')-propanediylbis(2,3-butanodione 2-imine 3-oximate)^(1-))(4-MeC₆H₄SO₂)]PF₆
• CAS NO: 185690-80-6
• Molecular Weight: 680.557
• Mol File: 185690-80-6.mol
• Article Data: 1

Chemical Properties

• CAS DataBase Reference: [(N-methylimidazole)(N⁽²⁾,N(2')-propanediylbis(2,3-butanodione 2-imine 3-oximate)^(1-))(4-MeC₆H₄SO₂)]PF₆(CAS DataBase Reference)
• NIST Chemistry Reference: [(N-methylimidazole)(N⁽²⁾,N(2')-propanediylbis(2,3-butanodione 2-imine 3-oximate)^(1-))(4-MeC₆H₄SO₂)]PF₆(185690-80-6)
• EPA Substance Registry System: [(N-methylimidazole)(N⁽²⁾,N(2')-propanediylbis(2,3-butanodione 2-imine 3-oximate)^(1-))(4-MeC₆H₄SO₂)]PF₆(185690-80-6)

Safety Data

• Hazardous Substances Data: 185690-80-6(Hazardous Substances Data)

Upstream product

• 185690-93-1 [(N-methylimidazole)(N⁽²⁾,N(2')-propanediylbis(2,3-butanodione 2-imine 3-oximate)^(1-))Cl]PF₆ 
• 824-79-3 p-toluenesulfinic acid sodium salt dihydrate 

Relevant articles and documents

The First X-ray Structural Evidence Demonstrating Thiolate Coordination in an Organocobalt B12 Model Complex: Implications for Methionine Synthase

Enzyme-bound methyl-B12 transfers its methyl group to homocysteine during methionine synthesis. However, treatment of several types of organocobalt B12 models with arene- and alkanethiolates under ambient conditions leads only to thiolate ligation. The structure of [AsPh4][EtSCo(DH)2CH3] (DH = monoanion of dimethylglyoxime). the first characterization by X-ray crystallography of an organocobalt complex containing a unidentate coordinated thiolate, demonstrates unambiguously the S-ligation of ethanethiolate to Co, trans to the CH3 ligand. This compound contains a very long Co-S bond (2.342(2) ?). However, the length of the Co-C bond (2.005(7) ?) is typical; this result strongly supports reported FT-Raman spectroscopic data indicating that the thiolate-type ligand does not have a strong trans influence and does not significantly weaken the Co-C bond in the ground state. Since a strong trans influence alkyl ligand weakens the trans Co-C bond, we examined the effect of EtS- on Co-((DO)(DOH)pn)(CH3)2 [(DO)(DOH)pn = N2,N2′-propanediylbis(2,3-butanedione 2-imine 3-oxime) is an imine/oxime quadridentate ligand]. Even for this compound, no attack on the Co-C bond was observed, although independently synthesized EtSCo((DO)(DOH)pn)CH3 was stable. Furthermore, thiolate did not cleave the Co-C bond of an organocobalt complex with a highly distorted Co-C group. Several new spectroscopic and ligand-exchange reactions were observed in this study. Ligand-responsive NMR shift trends in these other new complexes also indicate that thiolate ligands have a weak trans influence. ? Abstract published in Advance ACS Abstracts, January 1, 1997.