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Three‐dimensional organotin–hexacyanoferrate polymers of the type ∞3[(R3Sn)3FeIII(CN)6] where R = Me (I), n‐butyl (II) and phenyl (III), represent members of the family of supramolecular coordination polymers (SCPs) which have zeolitic‐like structure containing micropores. The structures of I–III contain wide channels capable of encapsulating resorcinol, which undergoes in situ oxidation to 1,3,4‐trihydroxy benzene (THB) or p‐nitrophenol (PNP), which converts to 1,4‐benzoquinone (BQ) and 2‐hydroxybenzoquinone (2‐HBQ). The oxidation products were investigated by spectroscopic methods and by HPLC. The SCP III was found to be a more effective oxidizing reagent than I and II due to the presence of terminal Sn‐OH2 groups hydrogen bonded to one‐sixth of the terminal CN groups, causing more wide expandable channels. In addition, mechanisms of the oxidation processes of resorcinol and PNP have been proposed. Copyright © 2010 John Wiley & Sons, Ltd. 相似文献
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The host attractive properties of supramolecular coordination polymers of the type ¥3 _\infty^3 [(R3Sn)3FeIII(CN)6], where R = methyl (I), n-butyl (II), and phenyl (III), afford the ability to be used as effective oxidizing reagents for
phenol and o-aminophenol forming new host-guest supramolecular coordination polymers. Phenol was oxidized to 1,4-benzoquinone
while o-aminophenol was oxidized to poly-o-aminophenol by the polymers I and II and to 2-aminophenoxazin-3-one by the polymer
III. The oxidation products were investigated by methods of spectroscopy and high-performance liquid chromatography. The redox
reactions were characterized by first-order kinetics. Moreover, mechanisms of the oxidation processes of phenol and o-aminophenol
have been proposed. 相似文献
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Ibrahim Moustafa Sh. Werida Amal H. Etaiw Safaa El-din H. 《Transition Metal Chemistry》2003,28(5):585-591
Various thiophene compounds have been shown to be encapsulated and partly oxidized within the channels of the three-dimensional (3D) host coordination polymers [(R3Sn)3Fe(CN)6]
n
(R = Me, n-Bu or Ph) to give guest–host encapsulated systems. The structure and physical properties of these systems were studied by X-ray powder diffraction, i.r., u.v.–vis., e.p.r. spectra and magnetic measurements. Thiophene compounds do not polymerize within the channels of the host, but rather give paramagnetic charge-transfer guest–host systems. 相似文献
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Moustafa Sh. Ibrahim Amal H. Werida Safaa El-din H. Etaiw 《Phosphorus, sulfur, and silicon and the related elements》2013,188(12):2441-2451
New supramolecular complexes [(Me 3 Sn)(Ph 3 Sn) 2 Fe(CN) 6 ] (I) and [(n-Bu 3 Sn)(Ph 3 Sn) 2 Fe(CN) 6 ] (II) are readily accessible by straightforward self-assembly of [Fe(CN) 6 ] 3? and hydrated R 3 Sn+/R′ 3 Sn + ions (R = Ph, and R′ = Me or n-Bu). The structural characterization of (I) and (II) is compared with well-documented supramolecular complex containing only Ph 3 Sn + unit, [(Ph 3 Sn) 3 Fe(CN) 6 ]. These novel compounds have wide internal cavities capable of encapsulating voluminous organic compounds, and they behave as host acceptors forming charge transfer complexes (CTC). Thiophene compounds acting as guest donor species are encapsulated within the cavities of the three-dimensional (3D) supramolecular hosts. The structure and physical properties of these hosts and host–guest systems were studied by X-ray powder diffraction, IR, UV/Vis., and magnetic measurements. 相似文献
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