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Mixed-Sandwich (Cp*/(HMB))Ru complexes containing Bis(methimazolyl)(pyrazolyl)borate (Cp* = η5-C5Me5 , HMB = η6-C6Me6)

หน่วยงาน Nanyang Technological University, Singapore

รายละเอียด

ชื่อเรื่อง : Mixed-Sandwich (Cp*/(HMB))Ru complexes containing Bis(methimazolyl)(pyrazolyl)borate (Cp* = η5-C5Me5 , HMB = η6-C6Me6)
นักวิจัย : Kuan, Seah Ling , Leong, Weng Kee , Webster, Richard David , Goh, Lai Yoong
คำค้น : DRNTU::Science::Chemistry.
หน่วยงาน : Nanyang Technological University, Singapore
ผู้ร่วมงาน : -
ปีพิมพ์ : 2555
อ้างอิง : Kuan, S. L., Leong, W. K., Webster, R. D., & Goh, L. Y. (2012). Mixed-Sandwich (Cp*/(HMB))Ru complexes containing Bis(methimazolyl)(pyrazolyl)borate (Cp* = η5-C5Me5 , HMB = η6-C6Me6). Organometallics, 31(14), 5159-5168. , http://hdl.handle.net/10220/13705 , http://dx.doi.org/10.1021/om300497p
ที่มา : -
ความเชี่ยวชาญ : -
ความสัมพันธ์ : Organometallics
ขอบเขตของเนื้อหา : -
บทคัดย่อ/คำอธิบาย :

Reaction of the scorpionate salt Li[HB(mt)2(pz)] (mt = N-methyl-2-mercaptoimidazol-1-yl, pz = pyrazolyl) with the organometallic complexes [Cp*RuOMe]2 (Cp* = η5-C5Me5) (1) and [(HMB)RuCl2]2 (HMB = η6-C6Me6) (2) gave the 18-electron Ru(II) complexes [Cp*Ru(κ3-H,S,S′)-{HB(mt)2(pz)}] (3) and [(HMB)Ru(κ3-H,S,S′)-{HB(mt)2(pz)}](4B)PF6 in moderate yields. In the absence of the PF6– anion, [(HMB)Ru(κ2-S,S′-{HB(mt)2(pz)})(Cl)] [4C] was isolated as a coproduct with (4B)Cl. These complexes are the first examples of organoruthenium(II) complexes containing bis(methimazolyl)(pyrazolyl)borate ligands. Isomers of 4B were observed in solution, and the isomerization process was studied using variable-temperature 1H NMR spectroscopy. The reactivity of 3 toward O2 and CO was investigated, and in the process we isolated the first Ru(IV) peroxo complex containing a poly(methimazolyl)borate ligand, [Cp*Ru(κ2-S,S′-{HB(mt)2(pz)})(η2-O2)] (5), and a CO adduct, [Cp*Ru(κ2-S,S′-{HB(mt)2(pz)})(CO)] (6), respectively. The oxidation process was reversible, but treatment of 5 with CO converted it irreversibly to 6. All the new compounds were fully characterized, including by X-ray diffraction analyses. Cyclic voltammetric studies were also conducted for complexes 3, 5, and 6.

บรรณานุกรม :
Kuan, Seah Ling , Leong, Weng Kee , Webster, Richard David , Goh, Lai Yoong . (2555). Mixed-Sandwich (Cp*/(HMB))Ru complexes containing Bis(methimazolyl)(pyrazolyl)borate (Cp* = η5-C5Me5 , HMB = η6-C6Me6).
    กรุงเทพมหานคร : Nanyang Technological University, Singapore.
Kuan, Seah Ling , Leong, Weng Kee , Webster, Richard David , Goh, Lai Yoong . 2555. "Mixed-Sandwich (Cp*/(HMB))Ru complexes containing Bis(methimazolyl)(pyrazolyl)borate (Cp* = η5-C5Me5 , HMB = η6-C6Me6)".
    กรุงเทพมหานคร : Nanyang Technological University, Singapore.
Kuan, Seah Ling , Leong, Weng Kee , Webster, Richard David , Goh, Lai Yoong . "Mixed-Sandwich (Cp*/(HMB))Ru complexes containing Bis(methimazolyl)(pyrazolyl)borate (Cp* = η5-C5Me5 , HMB = η6-C6Me6)."
    กรุงเทพมหานคร : Nanyang Technological University, Singapore, 2555. Print.
Kuan, Seah Ling , Leong, Weng Kee , Webster, Richard David , Goh, Lai Yoong . Mixed-Sandwich (Cp*/(HMB))Ru complexes containing Bis(methimazolyl)(pyrazolyl)borate (Cp* = η5-C5Me5 , HMB = η6-C6Me6). กรุงเทพมหานคร : Nanyang Technological University, Singapore; 2555.