A Dinuclear Zinc Complex, [Zn-2(mu-H(2)THBQ)(TPA)(2)](ClO4)(2), [TPA = Tris(2-pyridylmethyl)amine; H(2)THBQ(2-)=2,3,5,6-Tetrahydroxy-1,4-benzoquinonate], Exhibiting Two-proton Coupled Two-electron Donating Ability

Asato E; Miyazato S; Tohma H; Takara S; Tadokoro M; Miyazato Y; Yoshioka D; Mikuriya M

Chemistry Letters, Vol.38, No.12, 1170-1171, 2009

DOI10.1246/cl.2009.1170 Export Citation

A Dinuclear Zinc Complex, [Zn-2(mu-H(2)THBQ)(TPA)(2)](ClO4)(2), [TPA = Tris(2-pyridylmethyl)amine; H(2)THBQ(2-)=2,3,5,6-Tetrahydroxy-1,4-benzoquinonate], Exhibiting Two-proton Coupled Two-electron Donating Ability

Asato E, Miyazato S, Tohma H, Takara S, Tadokoro M, Miyazato Y, Yoshioka D, Mikuriya M

The reaction of Zn(ClO4)(2)center dot 6H(2)O with TPA and H(4)THBQ in methanol gave air-sensitive crystalline powder [Zn-2(mu-H(2)THBQ)(TPA)(2)](ClO4)(2) (1). An equimolar reaction of 1 with 1,4-benzoquinone (BQ) in acetonitrile under Ar atmosphere quantitatively produced 1,4-hydroquinone and [Zn-2(mu-RHOD)(TPA)(2)](ClO4)(2) (2) as a result of the 2H(+), 2e proton-coupled electron-transfer (PCET) reaction.