347840-33-9

Basic information

• Product Name: Cr₂(2,6-bis(phenylamino)pyridine)4*toluene
• CAS NO: 347840-33-9
• Molecular Weight: 1237.41
• Mol File: 347840-33-9.mol

Chemical Properties

• CAS DataBase Reference: Cr₂(2,6-bis(phenylamino)pyridine)4*toluene(CAS DataBase Reference)
• NIST Chemistry Reference: Cr₂(2,6-bis(phenylamino)pyridine)4*toluene(347840-33-9)
• EPA Substance Registry System: Cr₂(2,6-bis(phenylamino)pyridine)4*toluene(347840-33-9)

Safety Data

• Hazardous Substances Data: 347840-33-9(Hazardous Substances Data)

Upstream product

• 110-54-3 hexane 
• 5051-97-8 N²,N⁶-diphenylpyridine-2,6-diamine 
• 108-88-3 toluene 

Relevant articles and documents

Di- and trinuclear complexes with the mono- and dianion of 2,6-bis(phenylamino)pyridine: High-field displacement of chemical shifts due to the magnetic anisotropy of quadruple bonds

The monoanion of 2,6-bis(phenylamino)pyridine (HBPAP-) has been found to support quadruply bonded Cr24+ and Mo24+ units in Cr2(HBPAP)4 (1) and Mo2(HBPAP)4 (2). The corresponding dianion BPAP2- was able to stabilize the trinuclear complexes, (TBA)2Cr3(BPAP)4 (3) and (TBA)2Ni3(BPAP)4 (4), where TBA is the tetrabutylammonium cation. The dinuclear complexes have the typical paddlewheel configuration with Cr-Cr distances of about 1.87 A and a Mo-Mo distance of 2.0813(5) A and exhibit a high-field displacement of the corresponding N-H signals caused by the magnetic anisotropy of the quadruple bonds. For the trinuclear complexes, 3 has a linear chain of three chromium atoms arranged in an unsymmetrical fashion with two chromium atoms paired to give a quadruply bonded unit (Cr-Cr distance: 1.904(3) A and an isolated, square planar CrII unit at 2.589(3) A from the dimetal unit. On the other hand, the three nickel atoms in 4 are evenly spaced, having Ni···Ni distances of 2.3682(8) A. The trinuclear compounds show a twisted conformation with an overall torsion angle of about 30°.